CNS

Question 1

what is the CNS

Answer 1

brain and spinal cord

Question 2

what is the PNS

Answer 2

motor nerve fibers

Question 3

what is somatic NS

Answer 3

motor: control of skeletal muscles
sensory: skeletal muscle and skin through somatic sensation

Question 4

what is autonomic NS

Answer 4

organs, cardiac and smooth muscles, glands and adipose tissue

Question 5

what is the afferent pathway

Answer 5

sensory branch

Question 6

what is the efferent pathway

Answer 6

motor branch

Question 7

what are some of the sensors of the afferent pathway?

Answer 7

• free nerve endings
• pacinian corpuscle
• meissners corpuscle
• muscle spindle
• kinesthetic receptor
• or skin

Question 8

where do the sensory neurons enter through the spinal cord?

Answer 8

dorsal root

Question 9

where do motor neurons leave through the spinal cord?

Answer 9

ventral root

Question 10

the dorsal columns and spinothalamic tract contains what type of axons

Answer 10

sensory axons

Question 11

the corticospinal tract contains what type of axons

Answer 11

motor axons

Question 12

what are the 6 parts of the brain

Answer 12

1. Cerebrum (cortex and basal nuclei)
2. Diencephalon (hypothalamus and thalamus)
3. Midbrain
4. Pons
5. Medulla Oblongata
6. Cerebellum

Question 13

the hypothalamus and thalamus are a part of what part of the brain

Answer 13

diencephalon

Question 14

the cerebral cortex and basal nuclei are a part of what part of the brain?

Answer 14

cerebrum

Question 15

what does the frontal lobe of the cerebrum do

Answer 15

premotor and primary motor cortex, prefrontal cortex, broca’s area

Question 16

what does the parietal lobe of the cerebrum do

Answer 16

primary sensory, and primary gustatory

Question 17

what does the temporal lobe of the cerebrum do

Answer 17

primary auditory, primary olfactory, wernicke’s area

Question 18

what dos the occipital lobe of the cerebrum do

Answer 18

primary visual

Question 19

what allows for intercommunication between hemispheres

Answer 19

corpus callosum

Question 20

where is the brocas area located and what does it do and what is the path

Answer 20

frontal lobe
production of speech
primary auditory area –> wernickes area –> brocas area –> motor cortex

Question 21

where is wernickes area located and what does it do and what is its path

Answer 21

temporal lobe
comprehension of speech
primary visual –> wernickes area –> brocas area –> motor cortex

Question 22

what is the prefrontal association area

Answer 22

• decreases aggressivenss and inappropriate social responses
• progress towards a goal
• working memory/recall information

Question 23

what does the basal nuclei include:

Answer 23

caudate nucleus
putamen
globus pallidus
subthalamic nucleus

Question 24

what two pathways does the basal nuclei form and what do they do

Answer 24

direct and indirect pathways

indirect inhibits, direct increases activation of the frontal love and cause motor movement