Cardiovascular System 2

Question 1

What are the 4 elements that blood consists of?

Answer 1

Plasma, Red blood cells, White blood cells and Platelets

Question 2

What is plasma?

Answer 2

The liquid part of the blood consists of water. It transports nutrients, waste products, and gases in a dissolved form. (water,salts,nutrients and waste)

Question 3

What are Red blood cells?

Answer 3

Biconcave disc shaped cells, small and flexible, they do not have a nucleus and transport oxygen.

Question 4

What are White blood cells?

Answer 4

They are larger than red blood cells and they protect the body against infection and disease.

Question 5

What are Platelets?

Answer 5

Fragments of cells that help blood clot and prevent bleeding.

Question 6

What is the heart?

Answer 6

A muscle that continuously contracts and relaxes. Centrally situated between the chest, between the lungs, protected by the chest and ribs, and the same size as a fist. The 2 sides of the heart are separated by a muscular wall (septum) and consist of 4 chambers.

Question 7

What are 4 cardiovascular diseases?

Answer 7

1. Cholesterol (build-up of fat inside blood vessels that puts strain on your heart)
2. Hypertension (abnormally high blood pressure caused by stress, smoking or obesity)
3. Heart attacks ( a coronary artery suddenly becomes blocked, stopping the flow of blood to the heart and damaging it)
4. Strokes ( Due to an issue with blood supply to the brain)