NEET PG DENTAL EXAM

Detailed explanation-1: -Hypothalamus and the medulla oblongata are two primitive brain regions, that regulate fundamental functional aspects and homeostasis in higher mammals.

Detailed explanation-2: -The medulla oblongata is the brain section responsible for conscious thought and the regulation of involuntary action. It lies on the brain stem edge, in the front of the cerebellum.

Detailed explanation-3: -Smooth muscle, found in the walls of the hollow internal organs such as blood vessels, the gastrointestinal tract, bladder, and uterus, is under control of the autonomic nervous system. Smooth muscle cannot be controlled consciously and thus acts involuntarily.