exam 4

Question 1

neural signaling and regulation

Answer 1

• monitors changes inside and outside the body
• integrates information
• effects response

Question 2

Central Nervous System

Answer 2

Brain

Spinal cord

Question 3

Peripheral Nervous System

Answer 3

Spinal Nerves (31 pairs)
Cranial Nerves (12 pairs)

Question 4

Sensory Division

Answer 4

(afferent)

-carries action potentials TO the CNS

Question 5

Motor Division

Answer 5

(efferent)

–carries action potentials FROM the CNS

Question 6

somatic motor

Answer 6

supplies skeletal muscle with nerves

Question 7

autonomic motor

Answer 7

(visceral) 
supplies nerves to:
-smooth muscle
-cardiac muscle
glands

Question 8

sympathetic

Answer 8

(increase)

• physical activity
• fight or flight response

Question 9

parasympathetic

Answer 9

(decrease)

-digestive, vegetative activities

Question 10

neuroglia

Answer 10

support cells

Question 11

neurons

Answer 11

nerve cells

Question 12

neuroglia in CNS

Answer 12

-support, insulate, and protect neurons

Question 13

astrocytes

Answer 13

• barrier between capillaries and neurons

- protects neurons from harmful substances

Question 14

microglia

Answer 14

phagocytes

-dispose of debris and foreign

Question 15

ependymal cells

Answer 15

• lines cavities of the brain, spinal cord/central canal

- make cerebrospinal fluid (CSF)

Question 16

oligodendrocytes

Answer 16

-forms myelin sheath

Question 17

Neruoglia in PNS

Answer 17

• schwann cells: myelin sheath around nerve axons

- satellite cells: encapsulate and provide protection and support for cell bodies

Question 18

neurons

Answer 18

nerve cells