Cardiovascular system

Question 1

5 Functions of the Cardiovascular system

Answer 1

1. Circulates blood to all parts of the body
2. Transports oxygen, nutrients and water to the cells
3. Removes wastes such as carbon dioxide from the cells
4. Maintains body temperature
5. Helps fight disease through white blood cells and antibodies contained in the blood

Question 2

What is the anatomy of the heart

Answer 2

• 2 upper chambers, the atria, right and left atrium, are responsible for receiving blood
• 2 lower chambers, the ventricles, right and left ventricle, are responsible for pumping blood throughout the body (as a result more muscular than the atria)

Question 3

Role of the Right side of heart

Answer 3

• Receives deoxygenated blood from the body
• This side pumps the blood to the lungs through the pulmonary arteries after travelling through the right atrium and right ventricle

Question 4

Role of the left side of the heart

Answer 4

-Receives oxygenated blood from the lungs
-blood returns from the lungs through the pulmonary veins
-this side pumps blood through the left atrium and left ventricle to the body via the aorta

Question 5

What is Systole?

Answer 5

The heart contracts, forcing blood out of the heart through the ventricles and into arteries.

Question 6

What is Diastole?

Answer 6

The heart relaxes, filling with blood from the veins.

Question 7

What is heart rate?

Answer 7

The number of times the heart contracts or beats per minute (bpm).

Question 8

What is Stroke Volume?

Answer 8

The amount of blood pumped out of the aorta each time it beats

Question 9

What is cardiac output?

Answer 9

The amount of blood pumped by the heart each minute. EQUATION: (Q=SV x HR)

Question 10

What is the cardiac cycle

Answer 10

The process of the heart filling with blood and then pumping the blood to the rest of the body

Question 11

Red blood cells function

Answer 11

Transports oxygen around the body

Question 12

White blood cells function

Answer 12

Protects against disease

Question 13

Platelets function

Answer 13

Causes blood to clot when a blood vessel is damaged

Question 14

Plasma function

Answer 14

carries blood cells around the body

Question 15

2 functions of blood

Answer 15

• Thermoregulation
• carrying antibodies to fight infection

Question 16

Blood circulation Systems: Pulmonary circulation

Answer 16

-Moves blood between the heart and lungs
-transports DEOXYGENATED blood to the lungs to absorb oxygen and release carbon dioxide

Question 17

Cardiovascular system response to exercise (acute/immediate)

Answer 17

-Increased heart rate: as the intensity of exercise increases, heart rate rises to supply more oxygen and energy to keep up with the body’s demand

-Increased stroke volume: as the intensity of exercise increases, the amount of blood pumped does too, in order to increase the flow of oxygen around the body

Question 17

Blood circulation Systems: Systemic circulation

Answer 17

• moves blood between the heart and the rest of the body
  -carries OXYGENATED blood from the heart through arteries to the capillaries in the tissues of the body