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TM201 Chp 5 Part I
Definitions for the first section of Chp 5
| Question | Answer |
|---|---|
| science or study of the structure of an organism or body | morphology |
| consists of subatomic particles that all substances are composed of | atoms |
| basic functional units of all living matter | cells |
| collections of similar cells that carry out specific body functions | tissues |
| combinations of tissues and cells that form a complex structure to perform a certain function within the system | organs |
| several organs working together to perform a bodily function | organ system |
| colorless, jelly-like substance in which food elements, such as protein, fats, carbohydrates, mineral salts and water are present | protoplasm |
| all of the substances within the cell wall other than the nucleus | cytoplasm |
| the main central body of living cells that contains the genetic information for continuing life | nucleus |
| permits soluble substances to enter and leave the protoplasm | cell membrane |
| discrete structures within a cell, having specialized functions, identifying molecular structures, and a distinctive chemical composition | cytoplasmic organelles |
| process taking place in living organisms whereby the cells are nourished and carry out their activities | metabolism |
| molecule that stores energy in the body and releases it when it breaks down into adenosine diphosphate (ADP) | ATP adenosine triphosphate |
| protective layer that functions in the processes of absorption, excretion, secretion and protection | epithelial tissue |
| skeletal muscles that can be activated by conscious effort | voluntary muscles |
| lacks striations and cannot be stimulated to contract by conscious effort | smooth muscle tissue |
| the structural unit of the nervous system | neuron |
| occurs only in the heart and is responsible for pumping blood through the heart into the blood vessels | cardiac muscle tissue |
| loose connective tissue that binds the skin to the underlying tissues and fills the spaces between the muscle | areolar tissue |
| refers to the connective tissue layer between the skin and those structures underlying the skin | superficial fascia |
| areolar tissue with an abundance of fat cells | adipose tissue |
| bands that attach muscle to bone | tendons |
| bands of fibrous tissue that connect bones to bone | ligaments |
| fibrous connective tissue that forms a network throughout the body, surrounding every structure to support, separate and give shape to the body | fascia |
| envelops and permeates the skeletal muscles, refers to fibrous tissue sheaths that penetrate deep into the body, separating muscle groups | deep fascia |
| found between the vertebra and pubic symphysis | fibrocartilage |