Question

if your blood pressure were 120/70, it would mean that

• you have low blood pressure
• you have high blood pressure
• your blood pressure during systole is 120 and your blood pressure during diastole is 70
• your blood pressure during systole is 120 and your heart rate is 70

topic: 23.2 the human cardiovascular system
skill: knowledge/comprehension

question 5
the cardiac cycle is the sequence of events in 70 heartbeats

• true
• false

question 6
a certain level of cardiac output is needed at all times to maintain a normal blood pressure and to deliver sufficient oxygen to all tissues

• true
• false

Explanation:

• For the first question, blood pressure is recorded as systolic over diastolic. A reading of 120/70 means systolic pressure is 120 and diastolic is 70.
• For the second question, the cardiac - cycle is the sequence of events in one heartbeat, not 70 heartbeats.
• For the third question, a certain level of cardiac output is indeed needed to maintain normal blood pressure and oxygen delivery.

Answer:

• Question 4: Your blood pressure during systole is 120 and your blood pressure during diastole is 70.
• Question 5: False
• Question 6: True