What is the primary function of connective tissue in the body?
Providing structure and support
Covering and lining surfaces
Contracting to produce movement
Generating electrical impulses
The Correct Answer is A
A. Providing structure and support: Connective tissue provides structural framework for the body, supports organs, binds tissues together, and stores energy in the form of fat. It also contributes to tissue repair and protection through its various types, such as bone, cartilage, and ligaments.
B. Covering and lining surfaces: Covering and lining surfaces is the function of epithelial tissue, which forms protective barriers and regulates substance exchange between the body and the environment.
C. Contracting to produce movement: Muscle tissue is responsible for contraction and movement of body parts, including voluntary and involuntary motion, rather than providing structural support.
D. Generating electrical impulses: Nervous tissue generates and transmits electrical impulses to coordinate body functions, but it does not provide the physical support and structural framework that connective tissue does.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Dehydration: Dark, concentrated urine is commonly caused by reduced water intake or excessive fluid loss. The kidneys conserve water, resulting in a higher concentration of solutes and darker urine color.
B. Excess protein consumption: High protein intake can slightly alter urine composition, but it does not usually cause dark or concentrated urine unless accompanied by dehydration.
C. Excess fluid intake: Increased fluid intake dilutes urine, making it lighter in color rather than dark and concentrated.
D. Kidney failure: Kidney failure can alter urine output and composition, but early stages often result in reduced urine volume rather than concentrated, dark urine specifically caused by dehydration.
Correct Answer is C
Explanation
A. Low platelet count: A low platelet count stimulates the production of more platelets, not red blood cells. Platelets are involved in clotting, and their regulation is independent of red blood cell production.
B. High blood pressure: Blood pressure does not directly trigger red blood cell production. It is regulated by cardiac output and vascular resistance, not by erythropoiesis.
C. Low oxygen levels in the blood: Hypoxia stimulates the kidneys to release erythropoietin, which signals the bone marrow to increase red blood cell production. This process enhances the blood’s oxygen-carrying capacity.
D. Increased white blood cell count: An elevated white blood cell count typically indicates infection or inflammation and does not directly influence the production of red blood cells in the bone marrow.
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