Write the difference between Systole and Diastole.
Answer
Verified646.2k+ views
Hint: When the heart muscle relaxes and contract refers to diastole and systole. The heartbeat is caused by relaxing and contraction of heart muscles. The blood pressure is determined by a balance between diastole and systole.
Complete answer:
Additional information: During systole when the heart pumps blood around the body, the pressure on the vessels increases. This is known as systolic pressure. While in diastole the heart relaxes and starts refills with blood therefore the pressure in vessels drops. This is known as diastolic pressure. According to the American Heart Association, our heartbeats 60-100 times per minute. While measuring the blood pressure, the upper number in the reading represents the systolic pressure and lower number represent the diastolic pressure. The normal blood pressure in a healthy human is less than 120 systolic and 80 diastolic.
Note: Our heart is the mesodermally derived organ, about the size of a fist. It has four chambers that contain four valves. The opening and closing of these valves allow the blood to enter into the heart and out of the heart.
Complete answer:
| Diastole | Systole |
| It is the relaxation of the heart chamber between the two contractions. | To drive blood into the aorta and pulmonary artery, the heart chamber contract is called systole. |
| The chambers are filled with blood, during diastole. | The chambers are pumped blood out. |
| The heart chamber back to its original size and receive more blood | The size of the heart chamber decreases in volume and forces the blood out of them. |
| During diastole, the blood pressure decreases. | During systole, the blood pressure increases. |
| To prevent backflow of blood, the valves remain close | The valves remain open and allow blood entry of blood. |
Additional information: During systole when the heart pumps blood around the body, the pressure on the vessels increases. This is known as systolic pressure. While in diastole the heart relaxes and starts refills with blood therefore the pressure in vessels drops. This is known as diastolic pressure. According to the American Heart Association, our heartbeats 60-100 times per minute. While measuring the blood pressure, the upper number in the reading represents the systolic pressure and lower number represent the diastolic pressure. The normal blood pressure in a healthy human is less than 120 systolic and 80 diastolic.
Note: Our heart is the mesodermally derived organ, about the size of a fist. It has four chambers that contain four valves. The opening and closing of these valves allow the blood to enter into the heart and out of the heart.
Recently Updated Pages
Which of the following graphs shows the variation of class 12 physics CBSE
Draw a labelled diagram of the human male reproductive class 12 biology CBSE
Describe the experiment to compare the emf of two cells class 12 physics CBSE
What is standard hydrogen electrode
What is conventional current and electric current class 12 physics CBSE
2Bromopentane is treated with an alcoholic KOH solution class 12 chemistry CBSE
Trending doubts
Draw a labelled sketch of the human eye class 12 physics CBSE
Which are the Top 10 Largest Countries of the World?
A member of Simon commission later became Prime Minister class 12 social science CBSE
Draw ray diagrams each showing i myopic eye and ii class 12 physics CBSE
Give one example of a reptile that is viviparous class 12 biology CBSE
Which is the correct genotypic ratio of mendel dihybrid class 12 biology CBSE