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Week 13 Anatomy

STUDY!!!

QuestionAnswer
1. Term: Function of the Lymphatic System Definition: Maintains fluid balance, absorbs fats, and provides immunity through lymphocyte production and filtration.
2. Term: Lymph Node Function Definition: Filters lymph and removes pathogens before returning lymph to the bloodstream.
3. Term: T Cells Definition: Lymphocytes responsible for cell-mediated immunity; directly attack infected or abnormal cells.
4. Term: B Cells Definition: Lymphocytes responsible for antibody-mediated immunity; differentiate into plasma cells that produce antibodies.
5. Term: Innate Immunity Definition: The body’s nonspecific, immediate defense against any pathogen (e.g., skin, inflammation, fever).
6. Term: Adaptive Immunity Definition: Specific immunity involving T and B cells that recognize and remember specific pathogens.
7. Term: Antigen Definition: A foreign molecule that triggers an immune response.
8. Term: Antibody Definition: A protein produced by B cells that binds to specific antigens to neutralize them.
9. Term: Function of the Spleen Definition: Filters blood, destroys old RBCs, stores platelets, and aids immune function.
10. Term: Cardiac Output Definition: The amount of blood pumped by the heart per minute; calculated as stroke volume × heart rate.
11. Term: SA Node Definition: The heart’s natural pacemaker that initiates electrical impulses.
12. Term: Alveoli Definition: Tiny air sacs in the lungs where gas exchange occurs.
13. Term: Surfactant Definition: A fluid that reduces surface tension in alveoli, preventing their collapse.
14. Term: Diaphragm Function Definition: Primary muscle of breathing; contracts during inhalation to expand the thoracic cavity.
15. Term: Epiglottis Definition: A flap of cartilage that prevents food from entering the trachea during swallowing.
16. Term: Kidneys Definition: Filter blood, remove waste, regulate electrolytes, and maintain acid-base balance.
17. Term: Nephron Definition: The functional unit of the kidney that filters blood and forms urine.
18. Term: ADH (Antidiuretic Hormone) Definition: Increases water reabsorption in the kidneys, reducing urine output.
19. Term: Aldosterone Definition: Hormone that increases sodium and water reabsorption, raising blood pressure.
20. Term: Normal Components of Urine Definition: Water, electrolytes, urea, uric acid, creatinine; should NOT contain glucose, protein, or blood.
Created by: user-1961588
 

 



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