Cardio lesson

Multiple Choice

Which organ is primarily responsible for pumping blood throughout the cardiovascular system?

• Lungs

• Heart

• Kidneys

• Liver

Open Ended

Why is the cardiovascular system essential for human health?

Multiple Choice

Which of the following is considered a tissue in the cardiovascular system?

• Heart

• Blood

• Veins

• Arteries

Multiple Select

Select all the functions of the cardiovascular system from the options below.

• Transportation of oxygen and carbon dioxide

• Production of digestive enzymes

• Transportation of nutrients and wastes

• Pumping blood through vessels

Open Ended

Explain how the heart and blood vessels work together to transport substances throughout the body.

Multiple Choice

Where is the heart located within the human body?

• Between the lungs in the thoracic cavity

• Inside the abdominal cavity

• Behind the liver

• Above the brain

Fill in the Blanks

The

of the heart points toward the left hip and rests on the diaphragm.

Open Ended

Describe two physical characteristics of the heart mentioned in the lesson.

Fill in the Blanks

The thick muscular layer of the heart wall is called the

Multiple Choice

Which layer of the heart wall is responsible for secreting serous fluid to reduce friction?

• Epicardium

• Myocardium

• Endocardium

• Pericardium

Open Ended

Explain the structural differences between the epicardium, myocardium, and endocardium, and describe their respective functions in the heart wall.

Multiple Select

Which of the following are components found in cardiac muscle cells?

• Mitochondria

• Myofibrils

• Intercalated disc

• Fat and vessels

Multiple Choice

Which vessel carries oxygenated blood from the lungs to the heart?

• Aorta

• Pulmonary trunk

• Right pulmonary veins

• Superior vena cava

Open Ended

Explain the role of coronary arteries in the blood supply to the heart muscle.

Multiple Choice

Which chambers of the heart are responsible for receiving blood?

• Right ventricle and left ventricle

• Right atrium and left atrium

• Right atrium and right ventricle

• Left atrium and left ventricle

Fill in the Blanks

The septum that divides the heart between the ventricles is called the

septum.

Multiple Select

Select all the correct statements about heart valves:

• The tricuspid valve is located between the right atrium and right ventricle.

• The bicuspid (mitral) valve is located between the left atrium and left ventricle.

• The pulmonary valve is located between the left ventricle and pulmonary artery.

• The aortic valve is located between the left ventricle and aorta.

Multiple Choice

What is the main function of the chordae tendineae in the heart?

• To anchor the flaps of AV valves to the heart walls

• To pump blood into the lungs

• To regulate heart rate

• To transport oxygenated blood

Multiple Select

Which of the following statements about heart valves are correct?

• AV valves are open as atria contract and ventricles fill

• Semilunar valves are closed when atria contract

• AV valves close when ventricles contract

• Semilunar valves are open when ventricles contract

Fill in the Blanks

The right side of the heart pumps deoxygenated blood to the

to pick up oxygen.

Open Ended

Explain how the heart functions as a double pump and describe the difference between systemic and pulmonary circulation.

Multiple Select

Which of the following are involved in systemic circulation?

• Aorta

• Renal artery

• Pulmonary vein

• Hepatic portal vein

Fill in the Blanks

The cardiovascular system is primarily responsible for transporting

throughout the body.

Open Ended

What is one function of the cardiovascular system that you found most interesting during today's lesson?