BIOL 215 Study Guide - Midterm Guide: Cardiac Muscle, Dorsal Root Of Spinal Nerve, Autonomic Nervous System
Document Summary
4 main parts: cerebrum, diencephalon: thalamus, hypothalamus, and epithalamus, brainstem: midbrain, pons, medulla oblongata, cerebellum. Connected by a bundle of nerve fibers called the corpus callosum. An outer shell of gray matter (cell bodies) An inner layer of white matter (myelinated fiber) Thalamus: collection of large nuclei that serve as synaptic relay stations and integrating center. Hypothalamus: master command center for neural and endocrine coordination. Right under itself is the pituitary gland, one of the glands regulated by the hypothalamus. Includes the pineal gland, which regulates circadian rhythms through melatonin. All nerve fibers that relay signals between the forebrain, cerebellum, and spinal cord pass through here. Receives and integrates input from all parts of the cns. Made up of reticular formation: loosely arranged neuron cell bodies intermingled with bundles of axons. Involved with motor functions, cardiovascular and respiratory control, and the mechanism that regulate sleep and attention. Gray matter inside here are interneurons (afferent and efferent)
