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TEST THREE
anatomy 3
33
Anatomy
Undergraduate 1
05/14/2008

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Cards

Term
Lower Motor Neurons
Definition
Somatic Motor Neurons whose cell bodies lie in the spinal cord
Term
Subarachnoid space
Definition
Circulates the cerebrospinal fluid once it has left the ventricles.
Term
Triceps
Definition
Muscles that extends the arm while doing push ups
Term
Deltoid
Definition
Major abductor muscle in the upper arm
Term
Hamstring
Definition
Contains semitendonosis semimembranosus and biceps femoris
Term
Depolarization
Definition
Opening the sodium channels in the membrane of a neuron results in
Term
Cholinergic synapses
Definition
Releases the neurotransmitter Acytelcholine
Term
Action Potentials
Definition
When Sodium channels are blocked, this makes the neuron unable to generate action potentials
Term
Bipolar
Definition
Neurons that have on axon and one dendrite
Term
All or nothing principle
Definition
All stimuli great enough to bring the membrane to threshold will produce that identical action potential
Term
Ependymal, microglia, oligodendrocytes, astrocytes
Definition
4 Glial cells that are found in the CNS
Term
Chemical Synapses
Definition
These synapses dominate the nervous system
Term
The brain and Spinal Cord
Definition
Compromises the Central Nervous System
Term
ISPS (Inhibitory postsynaptic potentials)
Definition
Results in local hyperpolarization
Term
Horns
Definition
Projections of gray matter toward the outer surface of the spinal cord
Term
Segments of the spinal cord that control the limbs
Definition
Enlargements of the spinal cord occur in..
Term
SHORTER
Definition
The adult spinal cord is (shorter or longer) than the vertebral column
Term
Dura Mater
Definition
Tough fibrous outermost covering of the spinal cord
Term
Mixed Nerves
Definition
Spinal NErves are
Term
Dorsal Root Ganglia
Definition
contain cell bodies of sensory neurons
Term
Cervical- 8
Thoracic- 12
lumbar-5
sacral-5
coccygeal-1
Definition
Number of spinal bones in each category

Lumbar, sacral, etc.
Term
White Matter of the spinal cord
Definition
Contains bundles of axons that share common origins, destinations and funtions
Term
Hippocampus
Definition
important in learning and the storage of long-term memories
Term
Increase consciousness
Definition
Stimulation of the reticular formation results in...
Term
Medulla oblongate
Definition
Major centers concerned with autonomic control of breathing, blood pressure, heart rate, and digestive is located in
Term
Cerebellum
Definition
Oversees postural muscles of the body and makes rapid adjustments to maintain balance
Term
Frontal lobe
Definition
Anterior to the central sulcus
Term
Third and fourth ventricle
Definition
Linked by the cerebral aquaduct
Term
Association
Definition
Regions of the brain that are ivolved in interpreting data or coordinating motor responses
Term
Falx Cerebri
Definition
Fold of dura mater that projects between the cerebral hemisphere in the midsagittal plane
Term
Spinocerebellar
Definition
Spinal tract that relays information from proprioceptors to the CNS is
Term
Pyramidal system
Definition
Provides voluntary control over skeletal muscles
Term
First order neuron
Definition
The sensory neuron that delivers the sensation to the CNS
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