NSCI 1403 Lecture Notes - Lecture 18: Decussation, Pia Mater, Subarachnoid Space
27 Dec 2016
School
Department
Course
Professor
Document Summary
Brainstem- stemlike portion of the brain, continuous with diencephalon above and spinal cord below. Relays messages between spinal cord and brain, from brainstem cranial nerves to cerebrum. Helps control heart rate, breathing rate, blood pressure. Cerebellum- second largest part of the brain. Located behind pons, in posterior section of cranial cavity. Composed of cerebral cortex, two lateral lobes, central flocculonodular lobes, medial vermis, some deep nuclei. Process center involved with coordination of muscular movements, balance, precision, timing, body positions. Composed of gray matter and arranged in raised ridges (gyri), grooves (sulci), depressions (fissures). Involved with most conscious activities for living. (see major functions of cerebral lobes. ) Cerebral lobes- major divisions of cerebrum, consisting of frontal, parietal, temporal, occipital lobes (named for bones under which they lie), insula. Insula may be involved with gastrointestinal and other visceral activities: limbic lobe (along with the limbic system) is involved with emotions, behavioral expressions, recent memory, smell.
