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Which structure separates the vagina from the body of the uterus?

A.

Hymen

B.

Fundus

C.

Adventitia

D.

Cervix

Answer and Explanation

The Correct Answer is D

A. Hymen: The hymen is a thin membrane that partially covers the vaginal opening, but it does not separate the vagina from the uterus.

B. Fundus: The fundus is the upper part of the uterus, but it does not separate the vagina from the uterus.

C. Adventitia: This is the outer layer of the uterus, but it does not serve as a separator between the vagina and uterus.

D. Cervix: The cervix is the lower part of the uterus that protrudes into the vagina and acts as a barrier separating the two structures.


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Related Questions

Correct Answer is A

Explanation

A. Proximal convoluted tubule: The proximal convoluted tubule is the main site of creatinine secretion as well as the reabsorption of nutrients and water.

B. Distal convoluted tubule: While secretion occurs here, it is not the main site for creatinine; this site mainly adjusts the final urine concentration.

C. Collecting duct: This part primarily deals with water and electrolyte balance but is not the main site for creatinine secretion.

D. Loop of Henle: This structure plays a key role in water and sodium balance but does not play a significant role in creatinine secretion.

Correct Answer is A

Explanation

A. Mastication: Mechanical digestion involves physically breaking down food into smaller pieces, and mastication is a prime example of this.

B. Absorption: This is the process by which nutrients pass from the digestive system into the bloodstream, not a form of mechanical digestion.

C. Catabolism: Catabolism refers to chemical processes that break down molecules within the body, not mechanical digestion.

D. Anabolism: This refers to the synthesis of complex molecules from simpler ones, not related to the physical breakdown of food.

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