[216B] Neuro Part 1 A&P Review

Question 1

In the PNS, the afferent division is responsible for ____ info while the efferent division is responsible for ____ info

Answer 1

sensory, motor

Question 2

What 3 receptors send sensory info to the afferent division?

Answer 2

• Special
• Visceral
• Somatic

Question 3

What is the CNS compromised of (2)?

Answer 3

Brain + spinal cord

Question 4

What is the all or none principle?

Answer 4

Action potential will fire 100% at -55 mV

Question 5

What are the 4 major brain regions?

Answer 5

• Cerebrum
• Cerebellum
• Diencephalon
• Brain stem

Question 6

What 3 regions does the diencephalon consist of?

Answer 6

• Thalamus
• Hypothalamus
• Epithalamus

Question 7

What 3 structures does the brain stem consist of?

Answer 7

• Midbrain
• Pons
• Medulla oblongata

Question 8

What is the difference between broca’s and wernicke’s area?

Answer 8

Broca’s: ability to speak (motor)

Wernicke’s: language comprehension (sensory)

Question 9

What are basal nuclei?

Answer 9

Masses of gray matter found deep in each cerebral hemisphere

Question 10

What are basal nuclei responsible for?

Answer 10

Subconsciously control skeletal muscle tone and learned movements

Question 11

What does the epithalamus secrete?

Answer 11

Melatonin

Question 12

Where is CSF produced?

Answer 12

3rd and 4th ventricle

Question 13

What is the main function of CSF?

Answer 13

Support brain (submerged)