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Which vessel is the main supply of blood to the lower limb?

A.

Brachiocephalic artery

B.

Splenic artery

C.

Common hepatic artery

D.

Femoral artery

Answer and Explanation

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.


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Related Questions

Correct Answer is D

Explanation

A. Epididymis: The epididymis is where sperm mature and are stored. It is not cut during a vasectomy.

B. Tunica albuginea: This is the connective tissue surrounding the testis, not part of the sperm-carrying duct system.

C. Efferent ductules: These ducts transport sperm from the testis to the epididymis, but they are not cut during a vasectomy.

D. Ductus deferens: The ductus deferens (vas deferens) is the tube that carries sperm from the epididymis to the ejaculatory duct. It is cut and sealed during a vasectomy, preventing sperm from reaching the urethra.

Correct Answer is C

Explanation

A. It increases blood pressure, leading to a heart attack or stroke: This is not the primary mechanism of carbon monoxide poisoning.

B. It causes an increase in carbon dioxide, which causes an increase in pH: This is incorrect. Carbon monoxide binds to hemoglobin more tightly than oxygen, not carbon dioxide.

C. It occupies oxygen-binding sites on hemoglobin and decreases the amount of oxygen that reaches the tissues: Carbon monoxide has a high affinity for hemoglobin, leading to reduced oxygen transport in the blood, which can cause tissue hypoxia and death.

D. It causes inflammation within the bronchioles and prevents air from reaching the alveoli: This is incorrect; carbon monoxide poisoning does not work by causing inflammation.

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