Exam study 1 Circulatory System 1

Question 1

Purpose of circulatory system (or cardiovascular system)

Answer 1

To deliver nutrients and oxygen to all cells in the body

Question 2

The circulatory system consists of what parts of the body?

Answer 2

The heart and the blood vessels running through the entire body

Question 3

The main artery?

Answer 3

Aorta

Question 4

Smallest arteries/veins end in?

Answer 4

Capillaries, or the capillary network

Question 5

Systemic circulation purpose?

Answer 5

Provides organs, tissues and cells with blood so they get oxygen and other vital substances

Question 6

Pulmonary circulation purpose?

Answer 6

The pulmonary circulation is where the fresh oxygen we breathe in enters the blood. At the same time, carbon dioxide is released from the blood. (so to provide fresh oxygen and release CO2 from blood)

Question 7

Systemic circulation travel-path?

Answer 7

In systemic circulation, the left ventricle pumps oxygenated blood into the aorta. The blood travels from the aorta to larger and smaller arteries and into the capillary network. THere the blood drops off oxygen, nutrients and other important substances and picks up carbon dioxide and waste products. The blood, which is now low in oxygen, is collected in veins and travels to the right atrium and into the right ventricle. And this is where Pulmonary circulation begins.

Question 8

Pulmonary circulation travel-path?

Answer 8

The right ventricle pumps low-oxygen blood into the pulmonary artery, which branches off into smaller and smaller arteries and capillaries. The capillaries form a fine network around the pulmonary vesicles (grape-like sacs at the end of the airways). This is where carbon dioxide is released from the blood into the air inside the pulmonary vesicles, and fresh oxygen enters the bloodstream. When we breathe out, carbon dioxide leaves our body. Oxygen-rich blood travels through the pulmonary veins and the left atrium into the left ventricle. The next heartbeat starts a new cycle of systemic circulation.

Question 9

Entire blood flow travel path?

Answer 9

Superior and Inferior 
1. Vena Cava 
2. Right Atrium                
3. Tricuspid Valve 
4 Right Ventricle   
5. Pulmonary Valve   
6. Pulmonary Artery
7. Lungs
8. Pulmonary Vein
9. Left Atrium
10 Bicuspid/mitral/atrio-ventricular
11. Aortic Valve
12. Aorta

https://www.youtube.com/watch?v=2GMayj9O21o

Question 10

Systole?

Answer 10

Heart contraction

Question 11

Diastole?

Answer 11

Heart relaxation

Question 12

Coronary arteries?

Answer 12

Arteries that feed the heart with blood

Question 13

Electrical impulse of the heart order?

Answer 13

1. SA (sinoatrial) node sends electrical impulse
2. Atria contract
3. AV (atrioventricular) node sends an impulse into the ventricles
4. Ventricles contract
5. SA node sends another signal to the atria to contract, which starts the cycle over again