Anatomy and Phys

Question 1

afferent

Answer 1

carry or move inward toward a central structure

Question 2

blood brain barrier

Answer 2

protective mechanism that blocks specific substances found in the bloodstream from entering delicate brain tissue

Question 3

efferent

Answer 3

carry or move away from central structure

Question 4

limbic system

Answer 4

complex neural system located beneath the cerebrum that contrail basic emotions and plays a role in memory

Question 5

neurilemma

Answer 5

additional my myelin sheath that is formed by Schwann cells and found only on axons in the PNS

Question 6

ventricle

Answer 6

organ chamber or cavity that receives fluids

Question 7

neuroglia

Answer 7

cells that support the neurons and bind them to other neurons or other tissues of the body

Question 8

astrocytes

Answer 8

provide three dimensional support for the neurons

Question 9

oligodendroglia

Answer 9

develop the mylien or axons of neurons in the CNS

Question 10

CNS

Answer 10

brain and spinal cord

Question 11

diencephalon

Answer 11

thalamus and hypothalamus

Question 12

thalamus

Answer 12

receives sensory stimuli except olfactory and transmits to appropriate cerebral cortex

Question 13

hypothalamus

Answer 13

regulates involuntary activities, heart rate, temperature, fluid balance

Question 14

Brainstem

Answer 14

respiration, blood pressure (midbrain, medulla, pons)

Question 15

Ascending tracts

Answer 15

sensory nerve tracts

Question 16

descending tracts

Answer 16

motor nerve tracts

Question 17

PNS

Answer 17

sensory neurons, motor neurons, and somatic/sympathetic nervous system

Question 18

somatic NS

Answer 18

muscles under conscious control

Question 19

autonomic NS

Answer 19

impulses not under conscious control (heart rate, digestion)