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Study Stack Set 2

QuestionAnswer
Endocrine system The body system that releases hormones into the bloodstream to regulate growth, metabolism, reproduction, and homeostasis
What gland is considered the “master gland”? The pituitary gland
Negative feedback loop A control mechanism where the body reverses a change to maintain stability
What is the main function of the lymphatic system? To return excess fluid to the blood and help defend the body against pathogens
T cells Lymphocytes responsible for cell-mediated immunity, targeting infected or abnormal cells.
The __________ is the main muscle responsible for breathing. Diaphragm
Where does gas exchange occur in the lungs? In the alveoli
Hemoglobin The protein in red blood cells that binds oxygen and transports it through the bloodstream
What is the main pacemaker of the heart? The SA (sinoatrial) node
Cardiac output The amount of blood pumped by each ventricle per minute
What enzyme in the stomach begins protein digestion? Pepsin
Peristalsis Wave-like muscular contractions that move food through the digestive tract
The __________ filters blood, removes old red blood cells, and helps fight infection Spleen
Which hormone lowers blood sugar? Insulin
Alveolar ventilation The amount of air that reaches the alveoli and participates in gas exchange
Created by: Marissa.titus
 

 



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