Which vessel is the main supply of blood to the lower limb?
Brachiocephalic artery
Splenic artery
Common hepatic artery
Femoral artery
The Correct Answer is D
A. Brachiocephalic artery: This artery supplies blood to the upper body, including the head, neck, and right arm, but not the lower limbs.
B. Splenic artery: The splenic artery supplies the spleen, and it has no direct role in supplying blood to the lower limb.
C. Common hepatic artery: This artery supplies the liver, not the lower limbs.
D. Femoral artery: This is the major artery supplying oxygenated blood to the lower limb, making it the correct answer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Fibroblasts: Fibroblasts are responsible for synthesizing the extracellular matrix and collagen, which are essential for tissue repair and healing after an injury.
B. Complement cells: Incorrect. Complement cells are part of the immune response that helps to mark pathogens for destruction, but they do not proliferate during tissue repair.
C. Prostaglandins: Incorrect. Prostaglandins are lipid compounds that play a role in inflammation and pain but are not cells and do not proliferate.
D. Leukotrienes: Incorrect. Leukotrienes are inflammatory mediators involved in the immune response but do not proliferate during tissue repair.
Correct Answer is D
Explanation
A. Lipids and proteins: While bile is involved in fat digestion, it does not emulsify proteins.
B. Proteins: Bile does not emulsify proteins. Proteins are broken down by enzymes like pepsin.
C. Carbohydrates and proteins: Bile has no role in the digestion of carbohydrates or proteins.
D. Lipids: Bile emulsifies lipids, breaking them into smaller droplets to facilitate enzymatic digestion by lipases.
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