The 'lub-dup' sounds are associated with the closure of heart valves during the cardiac cycle.
‘Lub-dup’ sound is produced due to action of
Asked in UPSC NDA 1 2015 · Topic: Circulatory System (Cardiac Cycle: Systole, Diastole, Heart Sounds)
More Biology questions
- Which of the following is correct? The term systole refers to I. Phase of contraction of lungs. II. Phase of relaxation of lungs. III. Phase of relaxation of heart. IV. Phase of contraction of heart.
- When does heart rest ?
- The pulse in the human wrist beats
- A heart beat requires approximately:
- Which one of the following is considered as ‘good cholesterol’ with reference to individuals facing the risk of cardio-vascular diseases and hypertension ?
- Generally, Cholesterol levels are related with ______.
- Consider the following statements: Cholesterol packaged in High density lipoprotein is called bad cholesterol. High density lipoprotein builds up cholesterol and cause blockage of arteries. It can also lead to plaque formation and start atherosclerosis. Now state whether.
- To prevent heart problems, blood of a normal healthy person should have 1. low cholesterol level. 2. high HDL level. 3. high VLDL level. 4. high LDL level. Select the correct answer using the code given below :