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Exam 2
BIO nervous system
241
Physiology
Undergraduate 2
02/08/2011

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Term
What are the NT properties of Amino acids
Definition
Lipophobic, Receptors on membrane, Only 4 (Glutamate, asparatate, glycine and GABA)
Term
Properties on Amines as neuromessenger
Definition
Lipophobic (except Thyroid hormones, Receptor on membrane, contains amine
Term
Examples of Amines
Definition
Dopamine, Epinephrine, norepinephrine (derived from tysosine)
Term
Tyrosine-B-Hydroxylase
Definition
Tyrosine to L DOPA
Term
Dopa Decarboxylase
Definition
L-Dopa to Dopamine
Term
Dopamine-B-Hydroxylase
Definition
Dopamine to Norepinephrine
Term
PNMT
Definition
NE to epinephrine, only located in PNS
Term
Peptides/Proteins as NT
Definition
Cleaved from larger proteins, stored in vesicles, Prepropeptide>Propeptide>Peptide
Term
Lipophylic Ligands
Definition
Synthesized on demand, release rate depends on synthesis
Term
Lipophobic Ligands
Definition
Stored in vesicles, rate determined by exocytosis,
Term
Properties of Steroids as NT
Definition
Synthesized on demand(Lipophylic, Derived from cholesterol,
Term
Examples of Steroids
Definition
Progesterone, Cortisol, Aldosterone, Testosterone, Estrogen
Term
Messenger Transport( blood bourne)
Definition
lipophylic-carrier protein (long half life), lipophobic-dissolves (short half life), EX hormones
Term
Messenger Transport (Diffusion)
Definition
Ligand is degraded quickily, Para. auto crines
Term
Neurons
Definition
amitotic, High metabolic rate, Cluster=nuclei
Term
Astrocyte
Definition
Control environment, support
Term
Ependyml Cells
Definition
Produces CSF and movement
Term
Oligodendrocytes
Definition
Produce the myelin around axons
Term
Microglia cells
Definition
Immune system of CNS
Term
Schwann Cells
Definition
form myelin around larger neurons, only PNS
Term
Satellite Cells
Definition
Surround neuron body in PNS
Term
Transport in Axon is controlled by....
Definition
Kinesin- move down axon
Dynein-move vesicles upward both down microtubules
Term
Three Classes of neurons
Definition
Afferent-Interneurons-Efferent
Term
Development of Nerve System
Definition
Stem cell can turn into nerve/glial cells Tip coated by growth cone to push through, guided by glial cells
Term
How do nerves know where to go?
Definition
glial cells give off signals(supporting, deflecting and inhibiting) and soluble neurotropic factors
Term
Plasticity
Definition
Ability of neurons to reform
Term
Crushing Neurons
Definition
Cell is fine, but oligodendrocytes die off leaving no myelin
Term
Goldman-Hodgkin-Katz (GHK)
Definition
calculation used to get membrane potential expands to Nernst equations
Term
Potential Controlled by...
Definition
Na/K ATPase, leak channels
Term
depolarization
Definition
Moving from RMP to less negative
Term
repolarization
Definition
movement towards resting potential
Term
hyperpolarization
Definition
moving in a more negative direction away from RMP
Term
Graded potential
Definition
confined to small part of plasma membrane, magnitude changes and , three names; receptor potential, synaptic potential, and pacemaker potential
Term
Action potential
Definition
1-4milliseconds, 100 per second, all or none
Term
Path of action potential
Definition
1.) Stimulous pushes toward threshold potential. 2.) Na channels open gate opens. 3.) Na channels closes fast 4.) K channels open 5.) K close slowly, hence hyperpolarization.
Term
Stop action potentials
Definition
Drugs (procaine (Novocaine®) and lidocaine (Xylocaine®) block voltage gated Na channels. and puffer fish poison
Term
absolute refractory period
Definition
during the action potential, a second stimulus, no matter how strong, will not produce a second action potential .
Term
relative refractory period
Definition
a strong enough signal can trigger another action potential
Term
What cells are AP bidirectional?
Definition
Skeletal muscles away from soma
Term
Factors of Action potential velocity
Definition
Axon Diameter(more important) and Myelin stealth
Term
saltatory conduction
Definition
jumping of signaling down an axon from node of Ranvier to another
Term
Why is myelin good?
Definition
adds speed, reduces metabolic cost, and saves room the axons can be thinner
Term
Electrical Synapses
Definition
Pre/Post synaptic cells linked by gap junctions
Term
Chemical Synapses
Definition
pre synaptic releases Neurotransmitter which binds to receptor on post synaptic membrane
Term
Steps of chemical release
Definition
1.) AP reaches terminal 2.) Voltage gated Ca channels open 3.)Ca enters 4.)Triggers SNARE complex and releases neurotransmitter into synaptic cleft 5.) Neurotransmitter binds to receptor 6.) NT removed from cleft
Term
Removal of Neurotransmitters
Definition
Diffusion, Degradation, and Re uptake or remove receptors.
Term
Activating Post synaptic Cell
Definition
EPSP-excitatory brings cell potential closer to threshold
IPSP-inhibitory brings cell potential father from threshold
Term
Temporal/Spatial Summation
Definition
Temporal is same time response Spatial is spaced out enough for each response to be separate
Term
Auto receptors
Definition
Shut off receptors When NT is released it binds to post synaptic receptors and auto
Term
Beta-1
Definition
Adrenergic, Excitatory for Heart/kidneys/A tissue increases heart rate and renin release
Term
Beta-2 receptors
Definition
Adrenergic, Lungs/Blood Vessels/Skeletal muscles inhibitory,Greater affinity for epinephrine than for norepinephrine causes relaxation of bronchi
Term
Beta-3 receptors
Definition
Adrenergic, Adipose tissue, lipolysis in fat
Term
alpha-1 receptors
Definition
Adrenergic, stimulatory, blood vessels towards skin. glands... cause vasoconstriction
Term
alpha-2 receptors
Definition
Adrenergic, inhibits release of NE axon terminals, pancreas
Term
Serotonin
Definition
CNS/Brain stem, emotions, sleep, vommiting
Term
Histamine
Definition
CNS hypothalamus, paracrine actions, PNS allergic reactions
Term
glutamate
Definition
50% of excitatory, Metabotropic(g coupled) Ionotropic (AMPA receptors ,NMDA receptors ) Mg blocking Ca channels
Term
GABA
Definition
major inhibitory, binds to metabotropic receptors and ionotropic which release Cl and hyperpolarize.
Term
Glycine
Definition
inhibits interneurons, binds ionotropic which release Cl into nerve. maintains balance in spinal cord
Term
Endogenous opioids are what kind of NT
Definition
Neuropeptides (Enkephalins,Endorphins, Morphine and codeine )
Term
Substance P
Definition
induces Pain sensation, released be afferent neurons towards Brian Stem
Term
Gas neurotransmitter
Definition
NO, CO, H2S
Term
pyramidal cells
Definition
output cells in the cortex. axons to CNS
Term
Nonpyramidal cells
Definition
inward signals to cortex, PNS to CNS
Term
Clostridium tetani (tetanus toxin)
Definition
prevents vesicle fusion
Term
Clostridium botulinum bacilli toxin (botulism),
Definition
interfers with actions of SNARE proteins at excitatory synapses that activate muscles, botulism is characterized by muscle paralysis. Used as BOTOX to stop hyper muscle contraction, reducing wrinkles
Term
Catecholamines
Definition
Dopamine, Norepinephrine, Epinephrine
Term
Purine Neurotransmitters
Definition
Adenosine typically neuromodulators, ATP is present in all pre synaptic vesicles
Term
Neuromodulator
Definition
Long term effects, transcription factors and enzyme synthesis
Term
Acetylcholine
Definition
PNS/CNS,cholinergic receptors acetylcholinesterase degrades(AchE), choline acetyl transferase produces(CAT)
Term
Musarinic Receptor
Definition
Ach receptor, G coupled. All para, some sympathic inhibition of cardiac muscles
Term
Nicotinic Receptor
Definition
Ach receptor, ion channels, junction to skeletal muscles ganglionic neurons in autonomic system
Term
Alzheimer’s disease
Definition
Ach receptor disease, lose of cholinergic neurons
Term
what NT is Tyrosine made into?
Definition
Dopamine
Norepinephrine
Epinephrine
Term
What NT is made from tryptophan?
Definition
Serotonin
Term
What NT is made out of Histidine?
Definition
Histamine
Term
What degrades biogenic neurotransmitter?
Definition
Monoamine oxidase (MAO)
Catechol-o-methyltransferase
Term
Parkinson’s Disease
Definition
loss of Dopamine releasing neurons in the substantia nigra, Treated with L-Dopa (not a cure)
Term
Adrenergic receptor (general)
Definition
G protein coupled that are generally linked to second messenger signal transduction pathways
Term
Nicotinic Agents
Definition
Nicotinic Ach receptors in CNS, Stimulate sympathetic effects EX nicotine
Term
Acteylcholineesterase inhibitors
Definition
Binds to AchE stopping degradation, Prolongs Ach effect EX Neostigmine (Myasthenia Gravis), Sarin(Warefare)
Term
Parasympathomimetic agents
Definition
Muscarinic Ach Receptors,mimics Ach, EX Pilocarpine (Glaucoma opens Aqueous humor pores) Bethanechol (Increased bladder contraction)
Term
Sympathomimetic agents
Definition
Adrenergic receptors, Excites sympathic by increasing NE and binding EX Albuterol (Asthma, dilates bronchi by binding to Beta 2) and Phenylphrine (Colds, nasal congestion binds to Alpha 1 receptors)
Term
Sympatholytic agent
Definition
Adrenergic receptors, Blocks NE and binding EX Propanolol (Hypertension, Beta blockers, lower heart rate and decrease blood pressure)
Term
Glutamate actions
Definition
Step 1. presynaptic neuron fires action potentials
Step 2. glutamate is released from presynaptic terminals
Step 3. Glutamate binds to both AMPA and NMDA receptors
on postsynaptic membranes.
Step 4. Depolarizing EPSP of the postsynaptic cell mediated
via AMPA channels (Na+).
Step 5. The depolarization through the AMPA channels allows the magnesium ion blocking the NMDA channels to move and activate the channel. NMDA-receptor channels mediate a substantial Ca2+ flux.
Step 6. Calcium enters the cell.
Step 7. Calcium ions activate second-messenger cascade in the postsynaptic cell that includes persistent activation of two different protein kinases, and which increases the sensitivity of the postsynaptic neuron to glutamate.
Step 8. This second-messenger system can also activate long-term enhancement of presynaptic glutamate release via a retrograde signals that have not yet been identified.
Term
NMDA Receptors
Definition
Related to exictotoxicity, once one cell break its a waterfall effect in the neurons. Typical to strokes.
Term
Ethanol effect on Nervous system
Definition
activates GABA synthesis which in turn hyperpolarizes cells, making the less effective
Term
Parts of Central Nervous System
Definition
Brain stem and Spinal cord.
Term
Parts of Peripheral nervous system
Definition
Afferent (Somatic, Visceral, and Special Sensory)
Efferent (Somatic and Autonomic Motor
Term
Parts of Brain stem
Definition
Midbrain, Pons, Medulla Oblongata
Term
Two parts of forebrain
Definition
cerebrum and diencephalon
Term
Lobes of the brain
Definition
Frontal, Parietal, Occipital, Temporal
Term
diencephalon
Definition
central core of forebrain, contains thalamus, hypothalamus, and epithalamus
Term
cerebrum
Definition
right and left cerebral cortex
Term
subcortical nuclei
Definition
are heterogeneous groups of gray matter that lie deep within the cerebral hemispheres. Predominant among them are the basal nuclei, which play an important role in controlling movement and posture and in more complex aspects of behavior.
Term
corpus callosum
Definition
gap from right and left side of the brain, massive bundle of nerve fibers
Term
gyrus
Definition
sinuous ridges of the brain
Term
sulcus
Definition
grooves in the brain
Term
cerebral cortex
Definition
afferent integration is turned into meaningful perceptual images
Term
Thalamus
Definition
focusing attention,synaptic relay stations and important integrating centers for most inputs to the cortex
Term
hypothalamus
Definition
Behaviors having to do with preservation of the individual, preservation of the species, connected to pituitary gland
Term
epithalamus
Definition
includes the pineal gland, which has a role in regulating biological rhythms,
Term
limbic system
Definition
learning, emotional experience and behavior, and a wide variety of visceral and endocrine functions
Term
cerebellum
Definition
Although the cerebellum’s function is almost exclusively motor, it is implicated in some forms of learning.
Term
reticular formation
Definition
essential for life, motor functions, cardiovascular and respiratory control, and the mechanisms that regulate sleep and wakefulness and that focus attention
Term
how many cranial nerves are in the Brain stem
Definition
10 of the 12
Term
I. Olfactory
Definition
afferent, carries information from nose to brain, not a true nerve
Term
II. Optic
Definition
afferent, carries info from eyes not a true nerve
Term
III. Oculomotor
Definition
both, controls eye lids and motion
Term
IV. Trochlear
Definition
Both, moves eyeballs downward and laterally
Term
V. Trigeminal
Definition
both, skeletal chewing muscles
Term
VI. Abducens
Definition
both, moves eyeball laterally
Term
VII. Facial
Definition
both, innervates facial muscles transmits taste
Term
VIII. Vestibulocochelar
Definition
afferent, info from inside of the ear
Term
IX. Glossopharyngeal
Definition
both innervates shallowing and transmits taste and auditory receptors
Term
X. Vagus
Definition
Both, innervates glands, larynx and pharynx also acts on abdomen outside of CNS
Term
XI. Accessory
Definition
Efferent, innervates neck skeletal muscles
Term
XII. Hypoglossal
Definition
efferent, innervates skeletal muscles of the tongue
Term
Where are the 43 PNS nerves
Definition
12 cranial, 12 thoracic, 8 cervical, 5 lumbar, 5 sacral, 1 coccygeal
Term
Cervical nerves do what
Definition
control the muscles and glands and receive sensory input from the neck, shoulders, arms, and hands.
Term
Thoracic nerves do what
Definition
with the chest and upper abdomen.
Term
Lumbar nerves do what
Definition
associated with the lower abdomen, hips, and legs.
Term
Sacral nerves do what
Definition
ssociated with the genitals and lower digestive tract.
Term
coccygeal nerve does what
Definition
tailbone
Term
difference between cranial and spinal nerves
Definition
spinal are both E/A cranial are either A or E
Term
pia mater
Definition
clings to the brain and contains a network of blood vessels.
Term
encephalitis
Definition
inflammation of the brain
Term
Meningitis
Definition
inflammation of the meninges
Term
Cerebrospinal Fluid
Definition
it is secreted by ependymal cells of the choroid plexus. It circulates through the subarachnoid space and ventricles and is reabsorbed by arachnoid villi.
Term
Hydrocephalus
Definition
water on the brain
Term
An ischemic stroke
Definition
lose of blood flow, clots can be broken up by TPA.
Term
A hemorragic stroke
Definition
where the blood vessel has ruptured. The best treatment that we have available is to try to cauterize the vessel (if we can get to it) and to alleviate the pressure on the brain
Term
enteric nervous system
Definition
although often classified as a subdivision of the autonomic efferent nervous system, it, also includes sensory neurons and interneurons.
Term
Where does the sympathetic fibers come from
Definition
thoracic and lumbar regions
Term
Where does the parasympathetic fibers come from
Definition
brain stem and sacral region
Term
Sympathetic division
Definition
short pre ganglionic long post. uses Ach at the pre and post is with NE/ER "fight or flight"
Term
Parasympathetic
Definition
long pre ganglionic short post, Ach used at both. "rest and digest"
Term
additional autonomic
Definition
nonadrenergic and noncholinergic.
Term
Autonomic Neuroeffector Junctions
Definition
NT stored in axon swelling
(Varicosities)
Term
referred pain consists of....
Definition
visceral pain being perceived as somatic. EX heart attack
Term
Somatic Nervous System
Definition
One neuron between CNS and effector organ Motor neuron Effector organ = skeletal muscle Voluntary control
Neurotransmitter = acetylcholine
Term
Motor unit
Definition
motor neuron plus skeletal muscle 1 motor=many fibers 1 fiber=1 neuron
Term
Anatomy of the neuromuscular junction
Definition
Terminal bouton = axon terminal
Motor end plate = specialized muscle membrane at junction
all use Ach, receptors are N-ACh
Term
end plate potential
Definition
action potential on neuromuscular junctions
Term
Myasthenia Gravis
Definition
autoimmune disease,antibodies against Ach receptors and impairs the ability to stimulate a contraction
Term
Curare
Definition
plant toxin blocks nicotinic cholingeric receptors used to dilate organs
Term
Types of afferent nerves
Definition
Sensory and Visceral
Term
what are special somatic sensors
Definition
taste, smell, vision hearing equilibrium
Term
what are the somatic sensations
Definition
Somesthetic (sensation of touch from receptors in skin)
Proprioception
Term
Types of sensor receptors
Definition
photo, chemo, thermo ,and mechanoreceptors
Term
Types of sensory signals
Definition
direct or chemical
Term
Types of adapting receptors
Definition
slow (tonic) and rapid (phasic)
Term
labeled lines
Definition
pathway of sensory detection
Term
Coding is done by what
Definition
location intensity
Term
Somatosensory System
Definition
Pressure, temperature, pain, and body position
Term
Somesthetic sensations
Definition
skin detection
Term
Proprioception
Definition
body positions in space
Term
Bending of hair
Definition
Mechanoreceptor, detected by hair follicle receptors
Term
Light touch triggers
Definition
Free nerve ending of mechanoreceptors
Term
Pressure triggers
Definition
Mechanoreceptors by Merkel discs and ruffini endings
Term
Vibration is detected by
Definition
mechanoreceptors through Pacinian and Meissner corpuscles
Term
Increase or decrease of body temp triggers
Definition
Thermoreceptors warm and cold.
Term
intense mechanical stimulus is detected by
Definition
nociceptor, mechanical free nerve endings
Term
intense hot or cold stimulus is detected by
Definition
nociceptor, thermal free endings
Term
intense thermal or mechanical, or chemical signals is detected by
Definition
nociceptor, polymodal free nerve endings
Term
Nociceptor
Definition
all free nerve ending, PAIN, A delta and C fiber
Term
Fast Pain
Definition
A delta, sharp pricking well localized
Term
slow pain
Definition
C fibers, dull aching, poorly localized
Term
Potassium Histamine Prostaglandins Bradykinin Serotonin Substance P are examples of....
Definition
chemical signals for nociceptors
Term
Endogenous Analgesia Systems
Definition
cover up real pain when the body needs to survive binds to secondary neurons
Term
Hyperalgesia
Definition
super sensitive to pain, increased by cytokines
Term
phantom limbs
Definition
pain stemming from lost limbs, treated with anti inflammatory drugs
Term
anatomy of the eye
Definition
Outermost (Sclera and cornea)
Middle (Choroid, ciliary body, and iris)
Inner (Retina)
Term
Path to optic disk (5 steps)
Definition
Cornea, aqueous humor, pupil, lens, vitreous humor, optic disk
Term
increasing lens curvature results in
Definition
seeing near objects
Term
Lens curvature is controlled by
Definition
parasympathetic control, which relaxes Ciliary muscle and loosens zonular fibers
Term
Presbyopia
Definition
hardening of lens
Term
Presbyopia
Definition
hardening of lens
Term
Cataract
Definition
discoloration of the lens
Term
Gluacoma
Definition
increased volume in aqueous humor
Term
Astigmatism
Definition
irregularities in lens or cornea
Term
myopia
Definition
near sighted
Term
hyperopia
Definition
far sighted
Term
convex glasses correct
Definition
hyperopia
Term
what are the two muscles that control the amount of light that enter the eye?
Definition
inner circular muscle (constrictor) parasympathethic and outer radial muscle (dilator) sympathetic
Term
Anatomy of a retina
Definition
three layers: outer-photoreceptors middle-bipolar cells inner-ganglion cells
Term
Somatic System
Definition
always excitatory always nicotinic receptors
Term
path of light in retina
Definition
past all cells, comes back to hit rods/cones, bipolar cells, ganglion cells to CN II
Term
Differences between cones and rods
Definition
rods-white/black opsins, one photopigment sensitive to light cones-color opsins, 3 photopigments
Term
Example of photopigment
Definition
Rhodopsin
Term
Facts about Rhodopsin
Definition
G-coupled to Transducin, transmembrane protein
Term
What is present more in Fovea cones or rods
Definition
cones, rods are on peripheral area
Term
Adaptation to small light changes consist of what
Definition
pupil dilation/contraction
Term
Adaptation to large changes in light cause what
Definition
change in photopigment, bleaches rods (opsin is separated from retinal) max. light absorbed
Term
What part of retina is the AP first created?
Definition
ganglion cells, CN II (optic nerve)
Term
What is the anatomy of the ear?
Definition
Outer- Pinna and External auditory meatus
Middle-Tympanic membrane Ossicles (malleus, incus, stapes)
Oval window, Round window
Inner- Cochlea and Vestibular apparatus
Eustachian tube
Term
What is the objective of middle ear?
Definition
Amplify sound waves
Term
What is the objective of the inner ear?
Definition
Trans duce mechanical sound wave to action potential
Term
What are the fluids in the cochlea?
Definition
perilymph and endolymph
Term
What is unique about the fluid in the cochlea?
Definition
high concentration of Potasstium
Term
How does the sound receptor work?
Definition
liquid wave brushes stereocilia, aligned short to tall. mechanical gated channels open when tall hairs move(depolarize), close when short hairs move(hyper)
Term
Sound coding is done by?
Definition
intensity (loudness), frequency (pitch)
Term
Conductive deafness
Definition
defect in outer/middle ear typically ear drum or M-I-S
Term
Sensorineural deafness
Definition
bad transduction from wave to AP
Term
Central deafness
Definition
damage in the neural pathway from receptor-auditory cortex
Term
Otosclerosis
Definition
overgrowth in ossicles, results in conductive deafness, treated by surgery
Term
otitis media
Definition
middle ear infections, bacteria coming up from Eustachian tube
Term
Tinnitus
Definition
clicking or ringing in ear, sign of cochlear degeneration. aspirin side effect
Term
What are the three part of the Vestibular
Definition
Semicircular canals, utricle and saccule
Term
Vestibulocochlear Nerve contains what two inputs?
Definition
Vestibular nerve for equilibrium
Cochlear nerve for hearing
Term
What cell part is unique to semicircular canals?
Definition
kinocilium. (reaches up towards otoliths)
Term
What is unique about Carnial nerve I?
Definition
olfactory, turn over during life time, not amitotic
Term
Gustatory cells
Definition
cilia recruit chemosignals and send signals through certain pathways.
Term
What are the 5 pure tastes?
Definition
Sour, sweet, bitter, salty ,umami
Term
Umami
Definition
signal-gluatamate, aspramate
Term
sour
Definition
triggered by H+ which binds to K+ channels depolarizing cell to release Ca channels
Term
salty
Definition
triggered by Na+ which depolarizes cell to release Ca channels
Term
Sweet
Definition
binds to g coupled receptor (gustducin) which cascades to blocking K+ channels, , depolarizing and triggering Ca channels
Term
Bitter (2)
Definition
either blocks K+ channels. or binds to receptor, g coupled (transducin)releasing Ca from ER
Term
Coding for taste
Definition
Pattern, perception, smell
Term
Which taste sends the most.least AP per signal
Definition
Sweet most-Bitter least
Term
Neural pathway of taste
Definition
terminates in brainstem, CN VII, IX, X
second neuron makes it to thalamus, thrid gustatory cortex
Term
Neural pathway of Smell
Definition
receptor cell-into glomeruli- mitral cell-olfactory tract- relayed from olfactory tubercle to cerebral cortex
Term
Signaling of Olfactory
Definition
odorant binds, triggering G protein OLF. which creates cAMP that binds to NA or K channels, triggering Action potential
Term
Nicotine
Definition
binds to nicotinic receptors, causes sympathetic system
Term
Pilocarpine
Definition
treats Glaucoma, mimics Ach and parasympathetic system in PNS, binds nitotinic receptors
Term
Bethanechol
Definition
increases bladder contraction, parasympathomimetic agent binds to muscarinic receptors
Term
Neostigmine
Definition
Treats Myasthenia Gravis , acteylcholinesterase inhibitor, prolongs Ach effects
Term
Sarin
Definition
acteylcholinesterase inhibitor, used in warfare
Term
Albuterol
Definition
treats asthma, sympathomimetic agent, dilates bronchi by blocking Beta-2 receptors
Term
Phenylephrine
Definition
treats colds, nasal congestion binds to alpha-1,
Term
Propranolol
Definition
Sympatholytic agent, decreases sympathetic system treats Hypertension by Beta blockers
Term
ANS effects on iris?
Definition
actions through Alpha-1 Symp-contracts radial muscle Parasymp-contracts circular muscle
Term
ANS effects on ciliary muscle?
Definition
Beta-1 receptors Para-Contracts muscles flatting the lens
Term
ANS effects on heart?
Definition
Beta 1 and 2 symp-increases heart rate, contractility, and velocity PAra-opposite
Term
ANS effects on veins?
Definition
symp- acts on alpha 1,2 =contraction Beta-2 dilation
Term
ANS effects on Lungs?
Definition
Beta-2 receptor symp-contraction PARA-dilation
Term
ANS effects on fat cells?
Definition
alpha/beta 2 symp-increase fat breakdown
Term
ANS effects on kidney?
Definition
Beta-1 symp-increase renin secretion
Term
ANS effects on bladder wall?
Definition
Beta-2 symp-contracts Para-dilates
Term
ANS effects on sphincter?
Definition
alpha-1 symp-contracts para-dilates
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