Cadiovascular System Flashcards
(40 cards)
What are the 4 functions of the cardiovascular system?
Transports oxygen, transports nutrients, transports waste throughout the body and it also pumps/transports blood
What are the tissues in the cardio system?
Cardio muscle, smooth muscle, connective tissue
What is an artery?
Carries blood away from the heart. Large, thick muscular walls. Oxygenated blood
What are arterioles?
Smaller vessels that enter tissue
What are veins?
Carries blood to heart. Contains Co2 and waste. Deoxygenated blood.
What are valves?
To keep backward blood flow
What are capillaries?
Smallest vessel. Once cell thick. Connects veins and arteries
What happen at the capillaries?
Nutrients and gases diffuse here
What are the 2 pathways of blood circulation?
System circulation and pulmonary circulation.
What is systemic circulation?
Carries blood to the body and back.
What is pulmonary circulation?
Carries blood to the lungs and back
What is the structure and function of the heart?
Composed in cardiac muscle, enclosed by the pericardium sac: it protects the heart
What is the path of blood?
What is blood pressure?
Pressure of blood against the arteries. Measure in mmHg
What are the two types of pressure of blood?
Systolic pressure and diastolic pressure
What is systolic pressure?
Pressure of arteries while ventricles pump blood.
What is diastolic pressure?
Pressure of arteries while ventricles fill up with blood
What is high blood pressure?
Hypertension, could risk heart attack or stroke
What is low blood pressure?
Hypotension, can cause fainting and dizziness
What is heart rate?
Number of times your heart beats per minute
What is pulse?
Throbbing of arteries as heart pushes blood through them
What is the functions of blood?
Carries nutrients and 02 to cells, gets rid of waste and co2, body temperature regulation
What are the 4 parts of blood?
Platelets, plasma, red blood cells, white blood cells
What is plasma?
Fluid part of the cell, water mineral, nutrients, sugar, proteins