HHP 1300 Lecture Notes - Lecture 1: Scientific Method, Homeostasis, Organism

• School: University of Iowa
• Department: Health and Human Physiology
• Course: HHP 1300
• Professor: Flanagan

Document Summary

Antagonistic effectors: homeostasis is often maintained by opposing effectors that move conditions in opposite directions, maintains variables within a certain normal range, or dynamic constancy, when you are hot, you swear; when you are cold, you shiver. Neural and endocrine regulation: homeostatic maintained, intrinsically: cells within the organ sense a change and signal to neighboring cells to respond appropriately, extrinsically: outside of organ, endocrine, nervous system. The primary tissues: our organs are composed of four major categories of tissues, muscle tissue, nervous tissue, epithelial tissue, connective tissue, each tissue has particular structures and functions. Muscle tissue: designed for contraction, three types, skeletal muscle, striated appearance, multiple nuclei, under voluntary control, smooth muscle, no striations, involuntary control, cardiac muscle, found in heart, striated, involuntary control. Nervous tissue: communication network, cells designed to receive and transmit information, regulates and integrates various physiological systems, cell types, neurons, high-speed communication via electrical signals, neuroglia, support of neurons.