Circulatory System

Question 1

Circulatory System

Answer 1

an organ system that permits blood to circulate and transports nutrients, oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment
- help fight diseases, stabilize temperature and pH, and maintain homeostasis

Question 2

The circulatory system is centered on the

Answer 2

HEART

Question 3

How much blood an average-sized adult carries

Answer 3

5 litres (9 pints) of blood

Question 4

Pulmonary Circulation

Answer 4

loop from heart through lungs
- sends deoxygenated blood away from the heart through the pulmonary artery to the lungs
- returns oxygenated blood to the heart through pulmonary veins

Question 5

RIGHT ATRIUM

Answer 5

• upper chamber of the right side of the heart
• blood that is returned to the right atrium is DEOXYGENATED and passed into the Right Ventricle to be pumped through the Pulmonary Artery to the lungs for reoxygenation and removal of CO2

Question 6

PULMONARY ARTERY

Answer 6

• divides above the heart into two branches, to the right and left lungs -> arteries subdivide into smaller branches until capillaries in the alveoli are reached -> Pulmonary Veins

Question 7

PULMONARY VEINS

Answer 7

• usually four in number, each serving a whole lobe of the lung
• Open into the Left Atrium of the Heart

Question 8

LEFT ATRIUM

Answer 8

receives newly oxygenated blood from the lungs

Question 9

pulmonary circulation route

Answer 9

1. RA
2. RV
3. PArtery
4. PArterioles
5. PC
6. PVent
7. Pveins
8. LA

Question 10

SYSTEMIC CIRCULATION ROUTE

Answer 10

1. LV
2. AORTA
3. ARTERIES
4. TISSUES
5. VEINS
6. SUPERIOR AND INFERIOR VC
7. RIGHT ATRIUM