Blood Moving Cells Around the Body

Moving oxygen to the cells

• RBC carry oxygen from lungs to body
• high surface area provides space for more substances to be transferred to tissues and organs faster
• What veins carry oxygenated blood?

Moving CO2 to the lungs

• CO2 is a product of aerobic respiration
• it leaves cells where it is produced and goes into the walls of your capillaries
• CO2 stays in the plasma of blood
• CO2 is carried to the lungs by with artery?

Moving glucose to the cells

• Glucose passes through the wall of the Small intestine
• Travels in the plasma to the heart
• the heart then disperses it throughout the body
• Which artery is responsible for this?

A healthy heart

• heart beats 2500 mill. times
• heart pushes blood through 100 000km of blood vessels
• arteries experience pressure from ventricles pushing blood out
• arteries can get clogged if unhealthy food is eaten, flexibility decreases

Clogging Arteries

• fat can stick to walls of arteries
• blood has less space to move through to the body
• blood vessels can get blood clots = thrombosis (no oxygen)
• Thrombosis in coronary artery = heart attack
• Thrombosis in artery to brain= stroke

How to keep a heart healthy

• muscles need exercise
• when you exercise heart pumps faster
• eating healthy: cutting out fatty foods and replacing them with healthy foods

Exercise

• Three types of ways to be fit
• Strength, Flexibility and Endurance
• Be careful to start slow and build how much activity you do- injuries can be a set back