PSYC 1000 Chapter Notes - Chapter 3.2: Alprazolam, Homeostasis, Pituitary Gland

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Benjamin Giguere

Document Summary

Neurons are cells found in the nervous system responsible for sending and receiving messages throughout the body. Cell body (soma)- contains nucleus and genetic material. Dendrites- receive signals from other neurons and transmit them toward rest of cell. Axon hillcock- is the base of the cell body that leads to the axon. Axon- transports information through electrochemical reactions from cell body to end of neuron. Axon terminals- are bulbs at the end of the axon that contain vesicles with neuro-transmitters (chemical messengers that allow neurons to communicate) Sensory neurons receive information from senses and carry signals to the brain: respond to touch sensation on skin. Motor neurons carry messages away from the brain and spinal cord toward muscle control: flexion and extension of muscles. Neuron structure is related to specific functions of those neurons: more branches = more communication between neurons, less branches = less communication between neurons (more carrying)