Question

question 16
1 pts
which of the following statements about heart rate is false:
there is a direct relationship between heart rate and intensity of work.
the heart rate is the number of times the heart beats per minute.
maximum heart rate can be estimated using a persons age.
during intense exercise, the heart rate may increase to up to 220 bpm and occasionally even higher.
question 17
1 pts
another name for red blood cells is
question 18
1 pts
which valve allows blood to flow from the left atrium into the left ventricle?

Explanation:

• Question 16: As work - intensity increases, heart rate increases, so there is a direct relationship. Heart rate is beats per minute. Maximum heart rate can be estimated as 220 - age. During intense exercise, heart rate can reach up to 220 bpm or higher. All these are correct facts.
• Question 17: Red blood cells are also known as erythrocytes.
• Question 18: The bicuspid valve (also called the mitral valve) allows blood to flow from the left atrium to the left ventricle.

Answer:

• Question 16: None of the above statements are false (assuming no typos in the provided statements).
• Question 17: Erythrocytes
• Question 18: Bicuspid