Mastering A&P CNS Brain

What neuronal action occurs at the pyramids of the medulla oblongata?

The axons of upper motor neurons cross to the opposite side of the brain.

Cutting the corpus callosum would lead to which of the following?

The right cerebral hemisphere cannot communicate directly with the left hemisphere

Neural centers that control heart rate, respiration, and blood pressure are located in the

medulla.

The brain stem consists of the

midbrain, medulla, and pons

Which of the following grooves separates the cerebrum from the cerebellum?

transverse cerebral fissure

Which of these regions of the brain, besides the cerebrum, has an outer cortical layer of gray matter?

cerebellum

Which of these regions superior-most aspect is found in close proximity to the fourth ventricle and lies lies just posterior to the pons?

cerebellum

The insula is considered to be part of the ________.

cerebrum

Which of these regions of the brain has frontal, parietal, temporal, and occipital lobes, as well as the insula?

cerebrum

vWhich of these regions of the brain contains the basal forebrain nuclei in the deep gray matter?

cerebrum

Which of these lobes of the cerebrum lies anterior to the central sulcus

frontal lobe

Which of these regions lies between the optic chiasma and the posterior border of the mammillary bodies?

hypothalamus

Which of these regions of the brain regulates body temperature, hunger, and thirst?

hypothalamus

Which of these regions of the brain regulates hormonal secretions from the pituitary gland (hypophysis)?

hypothalamus

The main visceral control center of the brain is the

hypothalamus.

If the most caudal part of the CNS is the conus medullaris, then the most rostral part is/are the

prefrontal lobes.

A shallow groove on the surface of the cerebral cortex is called a

sulcus.

Which of these regions functions to direct nearly all sensory input, except olfactory impulses, to the cerebral cortex?

thalamus

Which of these regions is the largest part of the diencephalon and forms the upper and lateral walls of the third ventricle

thalamus

Which of the following is not a midbrain structure?

third ventricle

A "motor homunculus" can be visualized as an overlay on the precentral gyrus. The reason why the facial region of this homunculus covers such a large surface area is because

we have very expressive faces