the circulatory system Flashcards
1
Q
arteries
A
- blood flows through them and away from the heart
- hig blood pressure
- thick, tough and elastic walls
- noticeable pulse
- deeper inside body
- the only valves are the semilunar valves
2
Q
capilaries
A
- walls one cell layer thick
- white blood cells and fluid with oxygen, nutrients and waste products can get through the walls
3
Q
veins
A
- blood flows through them and towards the heart
- low blood pressure
- thin walls
- no pulse
- nearer body surface
- valves keep the blood from flowing back
4
Q
pulmonary circulation
A
pulmonary arteries - pulmonary veins
- deoxygenated blood flows through pulmonary arteries
- oxygen-rich blood flows through the pulmonary veins
5
Q
systemic circulation
A
- oxygen rich blood flows through the arteries
- deoxygenated blood flows through veins
- deoxygenated blood flows from the walls of the intestinal tract through the portal vein to the liver
6
Q
double circulatory system
A
in each complete circuit, the blood passes through the heart twice
7
Q
pulmonary circulation
A
heart-lungs-heart
- absorbing oxygen into the blood and releasing carbon dioxide to the air
8
Q
systemic circulation
A
heart-rest of the body- heart
- to release oxygen and nutrients to the cells, and to absorb carbon dioxide and other waste products.
