Cardiac Physiology and Cardiovascular System Quiz

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What is the function of the heart?

Pumps blood to the brain and receives blood from the intestines
Pumps blood to the body and receives blood from the lungs (correct)
Pumps blood to the kidneys and receives blood from the liver
Pumps blood to the lungs and receives blood from the body

Which type of tissue makes up the heart?

Smooth muscle and epithelial tissue
Skeletal muscle and nervous tissue
Adipose tissue and bone tissue
Cardiac muscle and connective tissue (correct)

What is the primary function of blood vessels?

Exchange materials to/from the lungs
Exchange materials to/from the liver
Distribute blood throughout the body and exchange materials to/from the tissues (correct)
Transport dissolved materials to the brain

What is the cardiovascular system responsible for establishing?

Blood pressure needed to get blood flow out to the tissues (B) Signup and view all the answers

Which circulatory pathway describes the delivery of oxygenated blood from the left side of the heart to the body tissues?

Systemic circuit (C) Signup and view all the answers

What is the primary function of the atrio-ventricular valves in the heart?

To allow blood flow into ventricles (B) Signup and view all the answers

Which structure prevents the eversion (flipping backwards) of atrio-ventricular valves in the heart?

Chordae tendineae (A) Signup and view all the answers

What is the main function of the semi-lunar valves in the heart?

To allow blood to exit the heart during ventricular pumping (A) Signup and view all the answers

In which circulatory pathway does deoxygenated, high carbon dioxide blood return to the right side of the heart?

Pulmonary circuit (B) Signup and view all the answers

Which type of nervous system acts as the 'accelerator' for the heart?

Sympathetic nervous system (D) Signup and view all the answers

What is the function of the pacemaker action potentials in the heart's intrinsic conduction system?

To initiate heart contractions (C) Signup and view all the answers

Which cells are part of the intrinsic conduction system of the heart?

Pacemaker cells (A) Signup and view all the answers

What is the primary role of the chordae tendineae and papillary muscles in relation to heart valves?

To prevent eversion of atrio-ventricular valves (A) Signup and view all the answers

What is the function of semi-lunar valves in relation to blood flow in the heart?

To prevent backflow of blood (D) Signup and view all the answers

What is the main purpose of systemic circulation in the human body?

To deliver oxygenated blood from left side of heart to body tissues for metabolic functions (D) Signup and view all the answers

What is considered as one-way valve direction according to provided text?

When pressure is greater in front of the valve, it closes. (A) Signup and view all the answers

What type of nerves act as 'brakes' for regulating heart activity?

Parasympathetic nerves (C) Signup and view all the answers

Cardiac Physiology and Cardiovascular System Quiz

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