MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

CARDIOVASCULAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
About how long does it take blood to completely cycle through the body?
A
1 second
B
1 Day
C
1 minute
D
1 hour
Explanation: 

Detailed explanation-1: -How long does it take blood to circulate through the body? On average, it takes about 45 seconds for blood to circulate from the heart, all around the body, and back to the heart again. An average adult’s heart beats more than 100, 000 times a day.

Detailed explanation-2: -Answer: Blood travels at three feet per second when it leaves the heart, but it slows down as it gets into smaller arteries and capillaries. It takes a minute to get around the body.

Detailed explanation-3: -Your body has about 5.6 liters (6 quarts) of blood. This 5.6 liters of blood circulates through the body three times every minute. In one day, the blood travels a total of 19, 000 km (12, 000 miles)-that’s four times the distance across the US from coast to coast.

Detailed explanation-4: -Traveling at roughly 3 feet per second, a blood cell in the average person travels through the ENTIRE body in about one minute. This incredible velocity moves about 83 gallons of blood an hour!

Detailed explanation-5: -Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body’s tissues through the aorta.

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