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test 4
lombrana notes 4 (5)
52
Anatomy
Undergraduate 1
11/20/2009

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Term
the main input to the ANS (autonomic nervous system) comes from
Definition
autonomic sensory neurons
Term
the main input is usually associated with
Definition
interoceptors
Term
what are interoceptors
Definition
sensory receptors located in blood vessels, visceral organs, muscles and nervous system monitors the internal environment
Term
name 3 visceral effectors
Definition
cardiac & smooth muscle and glandular epithelial tissue
Term
what is the major motor output func of the ANS
Definition
to regulate the ... heartbeat, smooth muscle contraction, and glandular secrection
Term
a group of nerve cell bodies that LIE OUTSIDE THE CNS
Definition
are ganglion
Term
a group of nerve cell bodies that LIE INSIDE THE CNS ARE
Definition
nucleus
Term
a network of nerves
Definition
plexus
Term
the ________ conduct impulses from the cns to the automomic ganglion
Definition
preganglionic neurons
Term
the ______ is the brain or spinal cord
Definition
cell body
Term
conduct impulses away from the ganglion to the effector
Definition
postganglionic neurons
Term
postganglionic neurons lie entirely outside the _____
Definition
cns
Term
cholinergic fibers secrete ________
Definition
acetylcholline
Term
adrenergic fibers secrete______
Definition
norepinephrine
Term
a neurotransmitter is either a _____ or a _______
Definition
acetylcholine (ACh) or norepinephrine (NE)
Term
the ANS has 2 divisions
Definition
the sympathetic and the Parasympathetic (thoracolumbar, craniosacral)
Term
the ________ are nerves formed by preganglionic axons that pass through the sympathetic truck ganglia without terminationg in it
Definition
splanchnic nerves
Term
a splanchnic nerve?
Definition
formed by preganglionic axons that pass through the symp trunk agang without terminating
Term
what does the adrenal medullae
Definition
medullae cells release hormones into the blood
Term
what hormones does the adrenal medullae release into the blood
Definition
epinephrine, norepinephrine, and trace dopamine
Term
axon terminal release ACh or NE, ______ release Ach
Definition
cholinergic fibers
Term
Axon terminals release ACh or NE, ______ release NE
Definition
adrenergic fibers
Term
the action of ACh is terminated by ___
Definition
acetylcholinesterase
Term
what does acertylcholinesterase hydrolyzes
Definition
ACh, rapid
Term
a substance that binds to and activates a receptor by mimicking the effect of a neurotransmitter (ex. phenylephrine)
Definition
agonist
Term
a substance that binds to and blocks a receptor (prevents a nat neurotransmitter from exerting its effect) ex. atropine
Definition
antagonist
Term
balance between sympathetic and parasympathetidc activity
Definition
autonomic tone
Term
"e-situations'....
Definition
exercise, exertion, emergency, excitement, and embarrassment- stimulate the sympathetic division
Term
breakdown of glycogen to glucose
Definition
glycogenolysis
Term
breakdown of triglycerides to fatty acids and glycerol
Definition
lipolysis
Term
adipose tissue cells perfom______
Definition
lipolysis
Term
5 parasympathetic responses (SLUDD)
Definition
salivation, lacrimation, urination, digestion, defecation (stimulated mainly by the parasympathetic div)
Term
stimulated mainly by the parasympathetic division are the ______
Definition
5 parasympathetic responses
Term
the major control and integrating center of the ANS is the _______
Definition
hypothalamus
Term
Rami communicantes
Definition
components of the autonomic nervous system
Term
a _____ is the network of nerves, veins or lymphatic vessels
Definition
plexus
Term
an area where fibers join, all fibers innervate at a particular region is called, ________
Definition
plexus
Term
the principal plexus are
Definition
cervical, brachial, lumbar, sacral, coccygeal ( no thoracic)
Term
the _____ is the largest nerve in the body, arises at the sacral plexus
Definition
sciatic nerve
Term
a _____ is an area of the skin that provides sensory input to the CNS
Definition
dermatone
Term
perception of the position of body parts esp the limbs
Definition
proprioception
Term
recognition of the location shape size and texture of obj that contact skin
Definition
discriminitive touch
Term
ascend to the medulla oblongata (same side of the body)(brain stem)
Definition
medial lemniscus
Term
a ribbion-like tract that extends from the medulla to the thalamus
Definition
medial lemniscus
Term
to recognize size shape and texture of obj by touch
Definition
stereogenosis
Term
the awareness of directions of movement
Definition
kinesthesis
Term
two types of pathways to convey impulses from the brain sem and other part of the brain
Definition
indirect and direct pyramidal pathways
Term
the pathway followed by nerve impulses that produce a reflex
Definition
reflex arc
Term
not consciously perceived involve responses of smooth muscle cardia c muscle and glands
Definition
autonomic (visceral) reflexes
Term
name 5 fuctional components of a reflex arc
Definition
sensory receptor, sesory neuron, integrting center, motor neuron, effector
Term
a single synapse between a sensory neuron and a motor neuron
Definition
mmonosynaptic reflex arc
Term
involves more thru 2 types of neurons and more than one cns synapse
Definition
polysnaptic reflex arc
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