The second heart sound (dub) is associated with the closure of
Correct answer: B. Semilunar valves
- A. Tricuspid valve
- B. Semilunar valves
- C. Bicuspid valve
- D. Tricuspid valve and bicuspid valve
Explanation
The closure of the semilunar valves is associated with the second heart sound, which is also known as the dub. The semilunar valves are located at the base of the heart, where the heart's chambers connect to the aorta and pulmonary artery.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
Practise Digestion
680 free Digestion MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Digestion questions
Pulmonary circulation is required for
The pressure exerted by the Swelling protoplast on the walls of the cell is
Insectivorous plants can prepare their own food because they have
Dubb sound by heart is made due to:
Water will be absorbed by root hairs when
The path of water from the soil up to the secondary xylem is