Physiology of theCirculatory System

2 components: Systemic & Pulmonary Circulation

A video to watch: https://www.youtube.com/watch?v=NJzJKvkWWDc

Pulmonary path to the lungs

• Releases CO2 in blood blood receives oxygen

2) Goes to pulmonary arteries

3) Smaller arteries

4) Arterioles

5) Pulmonary capillaries that surround alveolus

1) Start in right ventricle

10)left atrium

9)Pulmonary veins

Pulmonary path from the lungs

6)capillaries

7)venules

8)veins

Red blood cells exchange gases in the lungs

Gas Exchange

Release Co2 and receive O2

2

Systemic Pathwayoxygen to cells cells release

waste

9)right atrium

8)vena cava

1)left ventricle

2) aorta

7)veins

3)Smaller arteries

4)arterioles 6)venules

5)capillaries 5)capillaries

capillaries

Releases O2 receives CO2cells of organs

Gas Exchangesurrounding

Blood Circulation1)Atria empties its blood into the ventricles

2)Ventricles push blood towards the body &lungs

- blood pressure is at its minimum: diastolic

Blood Pressure

- Pressure where blood is pushed against arteries

pressure- blood pressure maximum: ventricle systole

High Blood PressureAbnormal increase of pressure in

the artery walls- Could tear the heart and damage arteries- Could be temporarycauses: diet, stress, tobacco and alcohol

Coronary Bypass

Vein is removed from another part

of the body.

Result: blood bypasses around

blocked artery

Arterial Endoprosthesis

Small spring inserted in the arteries for blood circulation

Angioplasty: introduction through the groin or arm smaller than coronary bypass