nervous system 12.4

 

MCQ

 

12.

What type of receptor cell is responsible for transducing pain stimuli?

1. mechanoreceptor
2. nociceptor
3. osmoreceptor
4. photoreceptor

13.

Which of these cranial nerves is part of the gustatory system?

1. olfactory
2. trochlear
3. trigeminal
4. facial

14.

Which submodality of taste is sensitive to the pH of saliva?

1. umami
2. sour
3. bitter
4. sweet

15.

Axons from which neuron in the retina make up the optic nerve?

1. amacrine cells
2. photoreceptors
3. bipolar cells
4. retinal ganglion cells

16.

What type of receptor cell is involved in the sensations of sound and balance?

1. photoreceptor
2. chemoreceptor
3. mechanoreceptor
4. nociceptor

17.

Which of these sensory modalities does not pass through the ventral posterior thalamus?

1. gustatory
2. proprioception
3. audition
4. nociception

18.

Which nucleus in the medulla is connected to the inferior colliculus?

1. solitary nucleus
2. vestibular nucleus
3. chief sensory nucleus
4. cochlear nucleus

19.

Visual stimuli in the upper-left visual field will be processed in what region of the primary visual cortex?

1. inferior right
2. inferior left
3. superior right
4. superior left

20.

Which location on the body has the largest region of somatosensory cortex representing it, according to the sensory homunculus?

1. lips
2. thigh
3. elbow
4. neck

21.

Which of the following is a direct target of the vestibular ganglion?

1. superior colliculus
2. cerebellum
3. thalamus
4. optic chiasm

22.

Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons?

1. prefrontal cortex
2. supplemental motor area
3. premotor cortex
4. primary motor cortex

23.

Which extrapyramidal tract incorporates equilibrium sensations with motor commands to aid in posture and movement?

1. tectospinal tract
2. vestibulospinal tract
3. reticulospinal tract
4. corticospinal tract

24.

Which region of gray matter in the spinal cord contains motor neurons that innervate skeletal muscles?

1. ventral horn
2. dorsal horn
3. lateral horn
4. lateral column

25.

What type of reflex can protect the foot when a painful stimulus is sensed?

1. stretch reflex
2. gag reflex
3. withdrawal reflex
4. corneal reflex

26.

What is the name for the topographical representation of the sensory input to the somatosensory cortex?

1. homunculus
2. homo sapiens
3. postcentral gyrus
4. primary cortex