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CNA
chapter 9 vocabulary
| Question | Answer |
|---|---|
| homeostasis | the condition in which all of the body's systems are balanced and are working together to maintain internal stability |
| metabolism | physical and chemical processes by which substances are broken down or transformed into energy or products for use by the body |
| organs | structural units in the human body that perform specific functions |
| tissues | group of cells that perform similar tasks |
| cells | basic structural units of the body that divide, develop, and die, renewing tissues and organs |
| integument | a natural protective covering (skin) |
| dilate | to widen |
| constrict | to narrow |
| bones | rigid connective tissues that make up the skeleton, protect organs, and allow the body to move |
| joint | the place at which bones bones meet |
| muscles | groups of tissues that provide movement of body parts, protection of organs, and creation of body heat |
| atrophy | the wasting away, decreasing in size, and weakening of muscles from lack of use |
| contracture | the permanent and often painful shortening of a muscle or tendon, usually due to lack of activity |
| central nervous system (CNS) | the part of the nervous system that is composed of the brain and spinal cord |
| peripheral nervous system (PNS) | part of the nervous system made up of the nerves that extend throughout the body |
| systole | the phase where the heart is at work, contracting and pushing blood out of the left ventricle |
| diastole | the phase when the heart relaxes or rests |
| respiration | the process of inhaling air into the lungs and exhaling air out of the lungs |
| inspiration | the process of inhaling air into the lungs |
| expiration | the process of exhaling air out of the lungs |
| sputum | thick mucus coughed up from the lungs |
| urinary incontinence | the inability to control the bladder; which leads to an involuntary loss of urine |
| peristalsis | involuntary contractions that move food and waste products through the gastrointestinal tract |
| glucose | natural sugar |
| digestion | the process of preparing food physically and chemically so that it can be absorbed into the cells |
| absorption | the transfer of nutrients from the intestines to the cells |
| elimination | the process of expelling wastes (made up of waste products of foods and fluids) that are not absorbed into the cells |
| fecal incontinence | the inability to control the bowels, leading to an involuntary passage of stool |
| glands | organs that produce and secrete chemicals called hormones |
| hormones | chemical substances created by the body that control numerous body functions |
| gonads | sex glands |
| reproduce | to create a new life |
| nonspecific immunity | a type of immunity that protects the body from disease in general |
| specific immunity | a type of immunity that protects the body against a particular disease that is invading the body at a given time |
| lymph | a clear yellowish fluid that carries disease-fighting cells called lymphocytes |
Created by:
Lkelly03
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