In human heart the left atrium receives:
Correct answer: D. The four pulmonary veins
- A. The superior vena cava
- B. Aorta
- C. The inferior vena cava
- D. The four pulmonary veins
Explanation
Yes, the left atrium of the human heart receives four pulmonary veins. The four pulmonary veins are responsible for carrying oxygenated blood from the lungs to the left atrium. The four pulmonary veins are named as follows:Right Superior Pulmonary VeinLeft Superior Pulmonary VeinRight Inferior Pulmonary VeinLeft Inferior Pulmonary VeinThe four pulmonary veins enter the left atrium through a series of openings, called ostia. The ostia are located on the left atrial wall, just above the mitral valve
Last updated
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.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A/An _ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.
A cavity bounded by ribs and diaphragram is called:
A complex cartilaginous structure surrounding the upper end of the trachea:
A condition with abnormal amount of fats is called:
A hormone called _ controls the secretion of gastric juice.