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Animals Only

7.7B, 7.13AB Force, Motion, & Homeostasis in Organisms (Animals only)

TermDefinition
STIMULUS Action or condition that provokes a response.
RESPONSE Change in a system resulting from a stimulus.
HOMEOSTASIS Tendency of an organism or cell to maintain a balanced state so as to maintain health and function.
PATHOGEN Microorganism or virus that can cause disease.
FIGHT-OR-FLIGHT Short-term physiological changes in response to stress that prepare the body for intense activity to avoid harm.
INTERNAL STIMULUS A change from within an organism, such as hunger and thirst, that causes the organism to respond.
EXTERNAL STIMULUS Anything outside the body of the organism that can cause a response in an organism.
FORCE Push or pull that can change the motion of an object.
MOTION Change in an object's position with respect to time & in comparison to the position of other objects used as reference points.
BLOOD Liquid that circulates through the body carrying nutrients, oxygen, & waste products.
HEART Muscular organ that pumps blood through the circulatory system.
BLOOD VESSELS Structures that carry blood through the tissues & organs in a body; veins & arteries.
CIRCULATION Movement around something, especially that of fluid in a closed system; "circ = ring."
BLOOD PRESSURE Pressure of blood in the circulatory system; measured for diagnosis due to close relation to the force & rate of the heartbeat.
GRAVITY Force of attraction that pulls objects toward each other & depends on their masses.
LUNGS Main organs of the respiratory system; pull oxygen in & push carbon dioxide out.
DIAPHRAGM Large, flat muscle at the bottom of the chest cavity that helps with breathing.
INHALATION Breathing in.
EXHALATION Breathing out.
MUSCLE Layers of fibrous tissue that can contract (to pull ONLY), causing movement of an organ or part of the body.
BONE Dense, hard connective tissue that makes up the skeletal system; provides support & protection for the body.
PERISTALSIS Involuntary waves of muscle contraction that keep food moving along in 1 direction through the digestive system.
ARTERY Blood vessel that carries blood AWAY from the heart.
VEIN Blood vessel that returns blood back to the heart.
Created by: trauberk
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