Question

Please answer the true false biology​

Answer 1

Answer:

1 TRUE

2 TRUE

3

4 TRUE

5 FALSE

Answer 2

Explanation:

1) True,

the human heart consist of 4 chambers -: Left atrium ,Left ventricle,Right atrium,Right ventricle

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2)True,

the pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart

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3)True,

The aorta (the main blood supplier to the body) branches off into two main coronary blood vessels (also called arteries). These coronary arteries branch off into smaller arteries, which supply oxygen-rich blood to the entire heart muscle.

The right coronary artery supplies blood mainly to the right side of the heart. The right side of the heart is smaller because it pumps blood only to the lungs.

The left coronary artery, which branches into the left anterior descending artery and the circumflex artery, supplies blood to the left side of the heart. The left side of the heart is larger and more muscular because it pumps blood to the rest of the body.

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4)True,

the human heart beats 72 times/min

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5)False,

The greater the intensity of the exercise, the more our heart rate will increase. When you stop exercising, our heart rate does not immediately return to our normal (resting) heart rate. The more fit you are, the sooner your heart rate will return to normal