CNA Flashcards
homeostasis
condition where body system are working together and maintain internal stability
metabolism
physical and chemical process in which substances are broken down or trasnformed into enegry
organs
instructional units in the human body which perform specific functions
tissues
groups of cells that perform similar tasks
cells
basic structural units of the body that divide develop and die renewing tissues and organs
integument
natural protective covering
dilate
widen
constrict
narrow
bones
ridged connective tissues that make up skelton
joint
place where two bones meet
muscles
group of tissues that provide movement for the body and protect organs and basic body heat
atrophy
wasting away decreasing in size weakening of muscles from lack of use
Contracture
permanent and often painful shortening of muscle tendons usually due to a lack of activity
central nervous system
part of the nervous system that is composed of the brain and spinal cord
peripheral nervous system
made up of nerves and extended throughout the body
diastole
phase when the heart relaxes or rest
respiration
process of inhaling air into the lungs and exhaling it out of your lungs
inspiration
inhaling air into your lungs
expiration
exhaling air
sputum
thick mucus coughed up from lungs
Urinary incontinence
inability to control bladder can lead to involuntary loss of urine
peristalsis
involuntary contraction that move food through the gastrointestinal tract
glucose
natural sugar
digestion
process of preparing food physically and chemically so it can be absorbed into cells
adsorption
transfer of nutrients from intestines to cells
elimination
process of expelling waste that isn’t absorbed into the cells
fecal incontinence
inability to control 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
create new human life
nonspecific immunity
type of immunity that protects the body from diseases in general
specific immunity
protects body from diseases in general
lymph
clear yellowish fluid that carries disease fighting cells called lymphocytes