BIOSC-116 Lecture Notes - Lecture 17: Medial Longitudinal Fissure, Medulla Oblongata, Motor Cortex
16 Jun 2020
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Document Summary
There are 4 major parts to the brain: Accounts for 85% of brain mass largest and most prominent part of the brain which is responsible for higher brain functions such as reading, writing, speaking, problem solving, etc. Surface has many ridges (gyri; singular = gyrus) and grooves (sulci; singular = sulcus) making it appear wrinkled. The cerebrum is divided into a left and right hemisphere by a deep groove called the longitudinal fissure. The left hemisphere governs the right side of the body and the right hemisphere the left side of the body. Communication between the 2 hemispheres is possible through a bridge called the corpus callosum. Is made up of gray matter (mostly nerve cell bodies; interneurons and unmyelinated axons); sight of integration. Is made up of myelinated axons that allow for communication over long. Diencephalon (thalamus, hypothalamus and pineal gland) distances. Made up of a few different structures. Little mini brain at the back of cerebrum.
