Cardiovascular System

Question 1

What are pulmonary circulation and systemic circulation? Describe both types.

Answer 1

Pulmonary circulation refers to the part of the circulatory system that carries deoxygenated blood away from the heart to the lungs and returns oxygenated blood back to the heart. Systemic circulation is the part of the circulatory system that carries oxygenated blood from the heart to the rest of the body and returns deoxygenated blood back to the heart

Question 2

How do different blood vessels differ in their roles?

Answer 2

The three main types of blood vessels—arteries, veins, and capillaries—have distinct roles. Arteries carry blood away from the heart, veins carry blood back to the heart, and capillaries are involved in the exchange of gases and nutrients at the cellular level​

Question 3

What is the role of the circulatory system and how does it transport blood throughout the body?

Answer 3

The circulatory system’s primary role is to transport blood throughout the body. It delivers oxygen and nutrients to cells and removes waste products. Blood is circulated through a network of vessels, including arteries, veins, and capillaries​

Question 4

What are cardiac muscle cells and why are they important to the heart?

Answer 4

Cardiac muscle cells are specialized cells in the heart that contract rhythmically and continuously, enabling the heart to pump blood effectively throughout the body​

Question 5

True or False: The three types of blood vessels are veins, arteries, and capillaries

Answer 5

True. These are the three main types of blood vessels in the circulatory system​

Question 6

Which statements are true about blood flow through the heart?

Answer 6

Oxygenated blood returns from the lungs to the heart via the pulmonary veins. Oxygenated blood enters the left ventricle and gets pumped to the rest of the body via the aorta​

Question 7

What is the difference between red blood cells and white blood cells?

Answer 7

Red blood cells carry oxygen to the body’s tissues, while white blood cells defend the body from pathogens​

Question 8

What is the purpose of the one-cell-thick walls of capillaries?

Answer 8

The one-cell-thick walls of capillaries allow for the easy diffusion of oxygen and carbon dioxide between blood and body tissues​

Question 9

True or False: Cardiovascular disease (CVD) refers to diseases of the heart and blood vessels.

Answer 9

True. Cardiovascular disease encompasses a range of conditions affecting the heart and blood vessels​

Question 10

Which arteries are the only ones that carry deoxygenated blood?

Answer 10

The pulmonary arteries are the only arteries that carry deoxygenated blood​