Special Senses

Question 1

The olfactory epithelium contains what 3 types of cells?

Answer 1

Olfactory neurons (chemoreceptors)

Basal cells (give rise to new Olefactory neurons)

3. Supporting cells (columnar cells that surround and support Olfactory neurons)

Question 2

Where is the primary gustatory complex located?

A) temporal lobe

B) occipital lobe

C) frontal lobe

D) parietal lobe

Answer 2

d) parietal lobe

Question 3

Match the taste with the chemical that produces it.

\_\_\_sweet 
\_\_\_sour 
\_\_\_salty 
\_\_\_bitter 
\_\_\_umami 

A) many alkaloids 
B) surcrose 
C) glutamate
D) sodium ions
E) hydrogen ions

Answer 3

A) many alkaloids-> bitter 
B) surcrose -> sweet
C) glutamate-> umami 
D) sodium ions-> salty 
E) hydrogen ions-> sour

Question 4

Which of the following nerves are involved with the gustatory sense?

A) vagus nerve (X)

B) Hypoglossal nerve (XII)

C) facial nerve (XII)

D) glossopharyngeal nerve (IX)

Answer 4

A) vagus nerve (X)

C) facial nerve (XII)

D) glossopharyngeal nerve (IX)

Question 5

Sata: which of the following is true about rods?

A) rods have a low level of photo pigment

B) rods are concentrated in the fovea

C) rods adapt slowly to darkness

D) rods can detect colour

Answer 5

C) rods adapt slowly to darkness

D) rods can detect colour

Question 6

What region of the retina contains a high density of photoreceptor cells and allows for extremely detailed vision

A) fovea centralis

B) optic disc

C) Ora serrata

D) ciliary body

Answer 6

A) fovea centralis

Question 7

Which of the following is not a relay station for the fibres of the visual pathway

A) lateral geniculate muscle

B) medial geniculate muscle

C) superior colliculus

D) pretectal area

Answer 7

B) medial geniculate muscle

Question 8

The macula in the utricle detects:

A) rotation of head from left to right

B) very low-frequency sound waves that we can feel but not hear

C) tilting of head from side to side

D) linear acceleration of the head in a vertical plane

Answer 8

C) tilting of head from side to side

Question 9

Which of the following is not part of the auditory pathway in the CNS

A) superior temporal lobe

B) superior colliculus

C) medial geniculate nucleus

D) nuclei in the pons

E) cochlear nuclei

Answer 9

B) superior colliculus

Question 10

Which cranial nerve is responsible for transmitting information about sounds and head position and movement to the brain?

Answer 10

Vestibulocochlear nerve (VIII)