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The lungs have a total of five

A.

segmental bronchi

B.

choanae

C.

laryngeal cartilages

D.

lobes

E.

tracheal cartilages

Answer and Explanation

The Correct Answer is D

A. Segmental bronchi: There are more than five segmental (tertiary) bronchi; each lung has multiple segments.
B. Choanae: These are posterior nasal apertures, not part of the lungs.
C. Laryngeal cartilages: There are nine laryngeal cartilages in total, not five in the lungs.
D. Lobes: The right lung has three lobes (superior, middle, inferior), and the left lung has two lobes-totaling five.
E. Tracheal cartilages: The trachea has multiple C-shaped cartilaginous rings, not five.


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Related Questions

Correct Answer is A

Explanation

A. Transverse colon: The transverse colon is the horizontal portion of the large intestine that runs across the upper abdomen from the right colic flexure (near the liver) to the left colic flexure (near the spleen).

B. Ascending colon: The ascending colon runs vertically upward along the right side of the abdomen, from the cecum to the hepatic flexure.

C. Descending colon: The descending colon runs vertically down the left side of the abdomen, from the splenic flexure to the sigmoid colon.

D. Ileum: The ileum is the final section of the small intestine, located in the lower abdomen, and connects to the cecum.

Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"A"}

Explanation

A. Insulin; glucagon and epinephrine: Insulin promotes glycogenesis (storage of glucose as glycogen), while glucagon and epinephrine stimulate glycogenolysis (breakdown of glycogen to glucose).
B. Insulin; aldosterone: Aldosterone regulates sodium and potassium; not directly involved in glucose metabolism.
C. Growth hormone; glucagon and epinephrine: GH has minimal effect on glycogenesis. The second part is correct, but the first is not.
D. Growth hormone; cortisol: Cortisol can promote gluconeogenesis, not specifically glycogenolysis. GH does not drive glycogenesis.
E. Growth hormone; insulin: Insulin does not stimulate glycogenolysis. This pairing is incorrect.

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