AUA med 1 mbb Neuroanatomy of brainstem block 3 dr Rakesh Questions With Complete Solutions

what are the three parts of the brain stem? correct answer: midbrain=>associated with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation. pons=> control of breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance medulla oblongata=>helps regulate breathing, heart and blood vessel function, digestion, sneezing, and swallowing. This part of the brain is a center for respiration and circulation the cerebellum is located dorsally to the brainstem. how is it connected to the brainstem? correct answer: cerebellum used a series of nerve bundles called peduncles to connect to the brainstem what are the 6 structures of the cerebellum? (3 each hemisphere) correct answer: superior cerebellar peduncle=>primary output of the cerebellum with mostly fibers carrying information to the midbrain middle cerebellar peduncle=>carry input fibers from the contralateral cerebral cortex inferior cerebellar peduncle=>receives ipsilateral proprioceptive information from the spinal cord. in brainstems all the nerves present come out ventrally except? correct answer: 4th cranial nerve that comes out posteriorly in the midbrain in the medulla, which 2 small structures run vertically and contain the corticospinal fibers? correct answer: the cell pyramids have motors function what are some functions of the medulla? correct answer: contains centers that are associated with equilibrium, audition, deglutition, coughing, vomiting, salivation, tongue movements, respiration, and circulation. which nerves are connected to the medulla? correct answer: 9, 10, 12