EXSC 224 Lecture 1: Lecture 1 - 8/18
Document Summary
Potential energy - physiology harnesses the gradient to do something. Regulate protein function by regulating its shape. Information gathered by sensory receptors about internal and external changes. Subconscious or conscious decisions can be made. Activation of effector organs (muscles and glands) produces a response. Pns - everything else that branches off of brain and spinal cord, cranial and spinal nerves. Communication lines between the cns and the rest of the body. Conducts impulses from receptors to the cns. Conducts impulses from the cns to effectors (muscles and glands) Conducts impulses from the cns to skeletal muscles. Conducts impulses from cns to cardiac muscles, smooth muscles, and glands. Promotes contraction of smooth muscle in stomach. Histology of nervous tissue - there are 2 principal cell types in the nervous system. Most abundant, versatile, and highly branched glial cells. Cling to neurons, synaptic endings, and capillaries. Hold things in place - blood vessels, neurons, exc.
