MEDICAL PHYSIOLOGY

PHYSIOLOGY

GENERAL PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An important structure adjacent to the brainstem that contains the hypothalamus (which controls emotions) and the thalamus (which relays sensory impulses to various portions of the cerebral cortex) is called:
A
Mesencephalon
B
Diencephalon
C
Superior cerebellar peduncle
D
Postcentral gyrus
Explanation: 

Detailed explanation-1: -Pons: Found in the brainstem, the pons connects the medulla oblongata and the thalamus. It is composed of tracts responsible for relaying impulses from the motor cortex to the cerebellum, medulla, and thalamus.

Detailed explanation-2: -By far the largest region of your brain is the forebrain (derived from the developmental prosencephalon), which contains the entire cerebrum and several structures directly nestled within it-the thalamus, hypothalamus, the pineal gland and the limbic system.

Detailed explanation-3: -The dorsal vagal complex is bidirectionally connected to the hypothalamus, making the brainstem an important link between peripheral hormones and hypothalamic neuropeptides.

Detailed explanation-4: -The entire hypothalamus or rostral diencephalon arises from the alar and basal components of the secondary prosencephalon.

Detailed explanation-5: -The thalamus is a mostly gray matter structure of the diencephalon that has many essential roles in human physiology. The thalamus is composed of different nuclei that each serve a unique role, ranging from relaying sensory and motor signals, as well as regulation of consciousness and alertness.

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