Answer: b. prostate gland
Explanation:
The prostate gland is the one of the walnut shaped gland which forms the part of the male reproductive structure. It forms the initial segment of the urethra which is the opening of the penis responsible for the discharge of the sperms and the urine. The epithelium gland of the prostate produces fluid that contains citric acid and enzymes which are proteolytic that prevents the coagulation of the sperms inside the vagina.
Answer:
The correct answer is D.
Explanation:
Papillary muscles, attached via chordae tendineae, help to close the valves and prevent regurgitation.
Pectinate muscles are parallel ridges in the walls of the atrium of the heart, mainly in right atrium. They can stretch during adverse loading conditions, to <em>help the right atrium to dilate without much wall stres</em>s.
Answer:
The correct answer is B
Explanation:
Arteriolls regulate peripheral vascular resistance. Blood pressure is defined by cardiac output and peripheral vascular resistance, therefore these vessels have the ability to modify their caliber to maintain adequate blood pressure levels.
