Understanding Blood Pressure and Heartbeat Cycle

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What happens to blood pressure during a heartbeat?

Blood pressure fluctuates randomly

Blood pressure increases (correct)

Blood pressure decreases

Blood pressure remains constant

What is the name given to one complete sequence of contraction and relaxation?

A ventricular cycle

A pulse

A heartbeat (correct)

A cardiac cycle

What is the definition of systolic pressure?

The minimum blood pressure during ventricle contraction

The maximum blood pressure during ventricle relaxation

The average blood pressure during a heartbeat

The maximum blood pressure during ventricle contraction (correct)

What is the definition of diastolic pressure?

The minimum pressure recorded just prior to the next ventricle contraction Signup and view all the answers

How many phases are there in one complete heartbeat?

2 Signup and view all the answers

Which vena cava carries deoxygenated blood?

Inferior Vena Cava Signup and view all the answers

Which type of blood pressure measures the force of blood against artery walls during the heart's relaxation phase?

Diastolic pressure Signup and view all the answers

What is the first instrument used to measure blood pressure?

Mercury column Signup and view all the answers

What is the name of the circulation path where blood moves from the heart to the lungs for oxygenation and then back to the heart?

Pulmonary circulation Signup and view all the answers

What does the term 'systole' refer to?

The pumping phase of the heart Signup and view all the answers

What is the main purpose of the systemic circulation?

All of the above Signup and view all the answers

What is the main role of the left ventricle in the systemic circulation?

To pump oxygenated blood to the body's tissues Signup and view all the answers

What is the primary function of the systemic circulation?

To transport oxygen and nutrients to the body's tissues Signup and view all the answers

Which of the following is not a part of the systemic circulation?

The movement of blood from the heart to the lungs Signup and view all the answers

Which of the following best describes the systemic circulation?

The movement of blood from the heart through the body and back to the heart Signup and view all the answers

What is the purpose of the one-way, semi-lunar valves at the entrance to the pulmonary veins?

To prevent backflow of blood from the heart to the lungs Signup and view all the answers

Where do the pulmonary veins originate from?

The lungs Signup and view all the answers

What is the primary function of the pulmonary veins?

To transport oxygenated blood from the lungs to the heart Signup and view all the answers

What type of valves are found at the entrance to the pulmonary veins?

Semi-lunar valves Signup and view all the answers

What is the primary purpose of the one-way, semi-lunar valves at the entrance to the pulmonary veins?

To prevent the backflow of blood from the heart to the lungs Signup and view all the answers

The irregular muscular cords mentioned in the text are found on the inner wall of which chamber?

Right ventricle Signup and view all the answers

What is the purpose of the septum in the heart?

To separate the left and right ventricles Signup and view all the answers

Which structure in the heart is responsible for receiving deoxygenated blood from the body?

Right atrium Signup and view all the answers

What is the term used to describe the contraction of the heart muscles?

Systole Signup and view all the answers

During which phase of the cardiac cycle does the heart relax and refill with blood?

Ventricular diastole Signup and view all the answers