Question

in the cross - section of a spinal cord, the butterfly shaped area is called:
white matter
central canal
grey matter
gray commissure
26 multiple choice 1 point
the _______ interprets visual form, color, depth and motion.
visual association area
primary visual cortex
thalamus
optic nerve
27 multiple choice 1 point
the primary sensory cortex (somatosensory cortex) is located in the:
occipital lobe
temporal lobe
postcentral gyrus of the parietal lobe

Explanation:

Question 26 (The ______ interprets visual form, color, depth and motion)

• The visual association area is responsible for interpreting visual form, color, depth, and motion by integrating visual information. The primary visual cortex (V1) mainly processes basic visual features like edges. The thalamus relays sensory information but doesn’t interpret visual details. The optic nerve transmits visual signals from the eye to the brain, not interpret them.

• The primary somatosensory cortex is in the postcentral gyrus of the parietal lobe. The occipital lobe has the primary visual cortex. The temporal lobe is for auditory processing and memory.

• In a spinal cord cross - section, the butterfly - shaped area is grey matter (contains neuron cell bodies). White matter is the outer region with myelinated axons. The central canal is a fluid - filled space in the center. The gray commissure is a bridge of grey matter connecting the two halves, not the main butterfly - shaped area.

Answer:

A. visual association area

Question 27 (The primary sensory cortex (somatosensory cortex) is located in the:)