Nervous System

Question 1

What is a ganglia?

Answer 1

Cluster of cell bodies

Question 2

Unipolar neurons

Answer 2

sensory neurons

Question 3

Bipolar neurons

Answer 3

special senses; most uncommon

Question 4

multipolar neurons

Answer 4

most common, motor neurons, interneurons

Question 5

Name the 3 nerve tissue wrappings

Answer 5

endoneurium surrounds individual neurons; perineurium surrounds neuron fascicles; epineurium surrounds the entire nerve

Question 6

Name functions of parietal lobe

Answer 6

touch/proprioception, understanding speech

Question 7

name functions of temporal lobe

Answer 7

interpret auditory/olfactory sensations; memory, understanding speech ( Wernickie’s area)

Question 8

what is a homunculus

Answer 8

coronal sections what represents nerve distrobutions

Question 9

The primary motor cortex is

Answer 9

found in the precentral gyrus

Question 10

the primary somatosensory cortex is

Answer 10

found in the postcentral gyrus

Question 11

Broca’s area is associated with

Answer 11

aphasia and the frontal lobe

Question 12

wernickies area is associated with

Answer 12

Primarily the temporal lobe, sentences that don’t make sense

Question 13

what are the 3 white matter tracts?

Answer 13

Association tracts, commissural tracts, projection tracts

Question 14

how do association tracts communicate?

Answer 14

connect regions within the hemisphere

Question 15

how do commissural tracts communicate?

Answer 15

across hemisphere through corpus callosum

Question 16

how do projection tracts communicate

Answer 16

connect brain to spinal cord

Question 17

what is the relay station?

Answer 17

the thalamus

Question 18

What 2 things are found in the epithalamus?

Answer 18

Pineal gland (melatonin), habenular nuclei (relay limbic information, viscera/emotional response to odors)

Question 19

what are the functions of the hypothalamus?

Answer 19

BEETS HAMs
behavior, emotion, endocrine, temperature, sleep/wake cycle, hunger, autonomic, memory, sexual maturation.

Question 20

what 3 structure are a part of the brainstem?

Answer 20

midbrain, pons (breathing) muscles, medulla (coughing/vomiting reflexes, regulate HR & peripheral blood flow)

Question 21

what is ataxia?

Answer 21

uncoordinated and jerky movements, usually from the effect of alcohol.

Question 22

Epidural hematoma

Answer 22

brain bleed form artery (fast)

Question 23

subdermal hematoma

Answer 23

Brain bleed form vein (slow)

Question 24

what are the 4 major cranial venous sinuses?

Answer 24

superior sagittal sinus. inferior sagittal sinus, straight sinus, confluence of sinuses

Question 25

cranial nerves and functions?

Answer 25

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