🫀 cardiovascular system Flashcards
🫀What type of blood is pumped to the lungs?
Deoxygenated blood.
🫀Which vessel carries deoxygenated blood to the lungs?
The pulmonary artery.
🫀 What type of blood is pumped to the body?
Oxygenated blood.
🫀 What carries the oxygenated blood to the body?
Aorta.
🫀 What do coronary arteries do?
Supply blood to the heart
🫀 Is the blood in the aorta high or low pressure?
High.
🫀 How does oxygenated blood become deoxygenated?
Oxygen dissociates from blood at cells that respire.
🫀 When oxygen dissociates from blood at cells that respire, where does the deoxygenated blood flow to and where from, through what ? <3 from 🩻 through vc
Flows into heart from the body through the vena cava.
🫀 What does the relaxation and contraction of arterioles do for blood flow?
Relaxation allows blood flow, contraction restricts it.
🫀 What do arterioles split into?
Capillaries.
🫀 What two things allow arteries to stretch?
Elastic fibres and endothelium.
🫀 Why do artery walls have thick muscle layers?
To maintain high pressure so blood can be pumped around the body.
🫀 Who’s lumen is wider? Vein or artery. And why?
Vein because blood flow is at lower pressure
