The Nervous System, Ear, Hearing and Balance - Kafli 4

Question 1

Hvað er NIHL

Answer 1

Noise Induced Hearing Loss

Question 2

What causes conductive deafness?

a. Damage to the outer ear
b. Damage to the pinna
c. Damage to the ossicles or the eardrum
d. Damage to the middle ear

Answer 2

c. Damage to the ossicles or the eardrum

Question 3

The outer, middle and inner ear are filled with:

Answer 3

air, air, liquid

Question 4

Which part of the ear senses linear accelerations and decelerations?

a. The ossicles in the middle ear
b. The otoliths in the middle ear
c. The ossicles in the middle ear
d. The otoliths in the saccules canals

Answer 4

d. The otoliths in the saccules canals

Question 5

When can a pilot experience the “leans”?

a. In all flight conditions
b. In the climb
c. In the descent
d. In the climb or the descent

Answer 5

a. In all flight conditions

Question 6

Hvað er “the leans” ?

Answer 6

This is caused by a quick return to level flight after a gradual, prolonged turn that the pilot failed to notice

Question 7

The conductive system consists of:

a. the ear drum and ossicles
b. the semicircular canals and otoliths
c. the cochlea and eustachian tube
d. the cochlea and the mitus

Answer 7

a. the ear drum and ossicles

Question 8

Decibels increase:

a. linearly
b. in terms of a logarithm
c. in terms of increments
d. in terms of integrals

Answer 8

b. in terms of a logarithm

Question 9

The vegetative system is another name for the:

a. CNS
b. NILH
c. sense receptors
d. ANS

Answer 9

d. ANS (Autonomic Nervous System)

Question 10

The vestibular apparatus detects ……………… acceleration:

a. linear
b. angular
c. angular and linear
d. +g

Answer 10

c. angular and linear

Question 11

Another name for “the leans” is:

a. the oculogravic effect
b. the somatogyral illusion
c. the somatogravic illusion
d. ocular disorientation

Answer 11

b. the somatogyral illusion

Question 12

If a steady turn is being maintained, then a sudden movement (greater than about …………….) may cause a phenomena known as the coriolis effect:

a. 4° a second
b. 5° a second
c. 3° a second
d. 2° a second

Answer 12

c. 3° a second

Question 13

The otoliths detect an acceleration greater than:

a. 0.001 m/s2
b. 0.01 m/s2
c. 0.1 m/s2
d. 1.0 m/s2

Answer 13

c. 0.1 m/s2

Question 14

Vertigo can be caused by a blocked eustachian tube.

a. True
b. False

Answer 14

a. True

Question 15

The PNS comprises:

a. the sensory and motor nerves
b. sensory and reaction nerves
c. reaction and motor nerves
d. only reaction nerves

Answer 15

a. the sensory and motor nerves

Question 16

The ANS is a biological control system which is neurohormonal and, like others, is not self-regulating in normal circumstances.

a. True
b. False

Answer 16

b. False