PSYC 3170 Chapter Notes - Chapter 2: Frontal Lobe, Autonomic Nervous System, Hyperthyroidism
3 Oct 2018
School
Department
Course
Professor
Document Summary
Cystic fibrosis, a chronic, progressive and eventually fatal disease of the respiratory system. Neurons in different parts of the nervous system have a variety of shapes and sizes. Dendrites function as receivers for messages from adjacent neurons. Messages then travel through an axon which splits into branches at the far end. Usually an impulse of electrical potential triggered. In the disorder of epilepsy, large clusters of neurons fire at abnormal rate casing victims to have seizures that can involve convulsions and loss of consciousness. Most of the growth in brain size after birth results from an increase in the number of glial cells and the presence of a white fatty substance called myelin. Glial cells are thought to service and maintain the neurons. Myelin sheath surrounds the axons of most, but not all, neurons. Is responsible for increasing speed of nerve impulses and preventing them from being interfered with by adjacent nerve impulses.
