Neural and Hormonal Systems Neurons (please label the parts and write a brief comment about each part’s function) Axon Node Axon terminals Dendrites Synapse Myelin sheath Cell body (soma) Synaptic end bulbs Communication between neurons 1. action potential 2. threshold 3. synapse 4.Neurotransmitters (you need to know these, seriously – memorize the chart below!) Agonists The Endocrine System Role of hormones: Hypothalamus Pituitary gland Thyroid- Adrenal gland Pancreas Testis/Ovaries Parathyroid- The Nervous System Central Nervous System Peripheral Nervous System Parts: (see chart on pg 64) Functions: The Brain Studying the Brain Method 1. 2. 3. 4. “Oldest Parts” of the Brain Structure Procedure used +/- of method The Limbic System Amygdala- Hypothalamus- Pituitary Gland- Hippocampus- “Newer Parts” of the Brain Structure Cerebral Cortex- nerve cells and glial (glue) cells, many wrinkles, large surface area Two hemispheres, each hemisphere divided into 4 “lobes” Functions of the cortex Motor Sensory Association Language Divided Brain The Brain’s “Plasticity” refers to the brain’s ability to modify itself, reorganize, and adapt The corpus callosum is a large ban of neural fibers that connects the two hemispheres of the brain. In some surgeries, the fibers are severed which cuts off communication between the two hemispheres of the brains. This is used as a form of treatment for epileptic seizures.