Chapter 14 Review Questions

inferior right

Visual stimuli in the upper-left visual field will be processed in what region of the primary visual cortex? a. inferior right b. inferior left c. superior right d. superior left

homunculus

What is the name for the topographical representation of the sensory input to the somatosensory cortex? a. homunculus b. homo sapiens c. postcentral gyrus d. primary cortex

mechanoreceptor

What type of receptor cell is involved in the sensations of sound and balance? a. photoreceptor b. chemoreceptor c. mechanoreceptor d. nociceptor

nociceptor

What type of receptor cell is responsible for transducing pain stimuli? a. mechanoreceptor b. nociceptor c. osmoreceptor d. photoreceptor

withdrawal reflex

What type of reflex can protect the foot when a painful stimulus is sensed? a. stretch reflex b. gag reflex c. withdrawal reflex d. corneal reflex

vestibulospinal tract

Which extrapyramidal tract incorporates equilibrium sensations with motor commands to aid in posture and movement? a. tectospinal tract b. vestibulospinal tract c. reticulospinal tract d. corticospinal tract

lips

Which location on the body has the largest region of somatosensory cortex representing it, according to the sensory homunculus? a. lips b. thigh c. elbow d. neck

cochlear nucleus

Which nucleus in the medulla is connected to the inferior colliculus? a. solitary nucleus b. vestibular nucleus c. chief sensory nucleus d. cochlear nucleus

cerebellum

Which of the following is a direct target of the vestibular ganglion? a. superior colliculus b. cerebellum c. thalamus d. optic chiasm

facial

Which of these cranial nerves is part of the gustatory system? a. olfactory b. trochlear c. trigeminal d. facial

audition

Which of these sensory modalities does not pass through the ventral posterior thalamus? a. gustatory b. proprioception c. audition d. nociception

ventral horn

Which region of gray matter in the spinal cord contains motor neurons that innervate skeletal muscles? a. ventral horn b. dorsal horn c. lateral horn d. lateral column

primary motor cortex

Which region of the frontal lobe is responsible for initiating movement by directly connecting to cranial and spinal motor neurons? a. prefrontal cortex b. supplemental motor area c. premotor cortex d. primary motor cortex

sour

Which submodality of taste is sensitive to the pH of saliva? a. umami b. sour c. bitter d. sweet

retinal ganglion cells

Axons from which neuron in the retina make up the optic nerve? a. amacrine cells b. photoreceptors c. bipolar cells d. retinal ganglion cells