Post Review Questions

Question 1

The 3 ossicles of the air filled middle ear transfer the vibrations of the ear drum into pressure waves in the _____ of the _____ via the ______.

Answer 1

fluid; inner ear; oval window

Question 2

True or False? There are no synapses in dorsal root ganglion or trigeminal ganglion.

Answer 2

True

Question 3

Injury to Spinothalamic tract is close enough to impair neurons carrying tactile signals except at the _____

Answer 3

spinal cord

Question 4

In peripheral nerve regeneration, growth related genes are expressed in ______

Answer 4

injured neuronal cell bodies

Question 5

The most common nerve injuries are of _____, _____, and _____ which causes sensory disturbance in the innervated area.

Answer 5

inferior alveolar nerve
mental of V3
lingual nerve of V3

Question 6

Synaptic potentials are _____

Answer 6

graded

Question 7

Receptor potentials are ____

Answer 7

graded

Question 8

Action potentials are ____

Answer 8

all or none

Question 9

A protective reflex of the alimentary tract

Answer 9

Gag reflex

Question 10

An orderly reversal of the activities seen in swallowing, similar to vomiting; include constriction and elevation of the pharynx

Answer 10

Gag Reflex

Question 11

weakness or paralysis
decreased superficial reflexes
hypoactive deep reflexes 
decreased tone 
fasiculations (motorneuron) and fibrillations (muscle)
severe muscle atrophy

Answer 11

lower motor neuron syndrome

Question 12

rapidly displacing the mandible in a downward direction would

Answer 12

lead to excitation of jaw-elevator motorneurons

Question 13

The supplementary motor cortex contains

Answer 13

a full body motor map

Question 14

Group of thick and thin filaments

Answer 14

myofibril