[BIOL 2110K] - Final Exam Guide - Everything you need to know! (38 pages long)
Document Summary
Attaches rib to sternum, covers ends of bones; cartilage w/ growth plates, provides model for formation of most bones in body. Weight-bearing cartilage that withstands compression; located in intervertebral discs, pubic symphysis, meniscus. Dense irregular ct; cells scattered through matrix of protein fibers. Embedded in a gel-like ground substance; includes proteoglycans but not calcium. Description ability to respond to a stimulus by changing electrical membrane potential. Elasticity extensibility involves sending an electrical change down the length of the cell membrane exhibited when filaments slide past each other. Enables muscle to cause movement ability to return to original length following a lengthening or shortening ability to be stretched. Voltage gated: gate is closed, neurotransmitte r binds to the gate, gate opens, k+ leaves the cell. Allow specific type of ion to diffuse when open. Chemically gated k+ channels: closed (resting state): Activation gate closed: open (activation state): ia and a gates open; na+ comes in cell, closed (inactivation site):
