Nervous system

Question 1

small cells that phagocytize bacterial cells and cellular debris

Answer 1

Microglial cells

Question 2

form myelin in the brain and spinal cord

Answer 2

Oligodendrocytes

Question 3

the myelin-producing neuroglia of the peripheral nervous system

Answer 3

Schwann cells

Question 4

near blood vessels and support structures, aid in metabolism, and respond to brain injury by filling in spaces

Answer 4

Astrocytes

Question 5

cover the inside of ventricles and form choroid plexuses within the ventricles

Answer 5

Ependymal cells

Question 6

surrounds neurons in PNS ganglia –> nourishes neurons and regulates chemical environment

Answer 6

Satellite cells

Question 7

neuroglial cells fill spaces, support neurons, provide structural frameworks, produce ____, and carry on phagocytosis.

Answer 7

myelin

Question 8

Nerve that innervates the diaphragm

Answer 8

Phrenic nerve

Question 9

Longest cranial nerve

Answer 9

vagus nerve

Question 10

Chemical equation for eye muscle innervation

Answer 10

LR6 SO4 AO3

Question 11

Spinal nerves tested for biceps reflex

Answer 11

C5, C6

Question 12

Normal response for biceps reflex

Answer 12

flexion at the elbow and contraction of the biceps muscle

Question 13

Spinal nerves tested for patellar reflex

Answer 13

L2, L3, L4

Question 14

Normal response for patellar reflex

Answer 14

Contraction of the quadriceps with extension of the knee

Question 15

Spinal nerves tested for ankle (achilles) reflex

Answer 15

S1 and S2

Question 16

Normal response for ankle reflex

Answer 16

plantar flexion at the ankle

Question 17

Spinal nerves tested for plantar reflex

Answer 17

L5, S1, S1 (Corticospinal tract)

Question 18

Normal response for plantar reflex

Answer 18

toes point down

Question 19

Abnormal response for plantar reflex

Answer 19

babinski sign

Question 20

Both pupils constrict when light is directed at one eye

Answer 20

Normal pupillary reflex

Question 21

Sound radiates through bone to both ears equally

Answer 21

Normal weber test

Question 22

Air conduction is better than bone conduction (sound in air is heard longer)

Answer 22

Rinne Test

Question 23

Snellen eye chart with high denominator

Answer 23

worse vision

Question 24

Normal human eye accommodation range

Answer 24

25 cm – infinity

Question 25

Nearsighted human eye accommodation range

Answer 25

18 cm

Question 26

Farsighted human eye accommodation range

Answer 26

31 cm