Cardio Vascular system

Question 1

Define diastic blood pressure

Answer 1

pressure excerted on arteries when the heart is relaxed

Question 2

Define systolic blood pressure

Answer 2

pressure excerted on arteries when muscles contract

Question 3

Explain capillaries

Answer 3

Extremely thin walls, eventually become veins.
Allows diffusion of nutrients and gases into body’s tissue
Waste products get taken back into blood stream to be excreted.

Question 4

Give 5 examples of modifiable risks effecting blood pressure

Answer 4

Salt intake 
Physical activity
Diet 
Alcahol intake 
obesity

Question 5

Describe Plasma

Answer 5

Carries liquid in blood - 91% water

Question 6

Describe platelets

Answer 6

Releases chemicals that help prevent blood loss by making platelet plug to clot the blood

Question 7

Describe white blood cells

Answer 7

Transparent

helps fight infection

Question 8

Describe red blood cells

Answer 8

Carry oxygen around body

Haemoglogen gives red pigment

Question 9

Describe veins

Answer 9

Carry deoxygenated blood towards heart
thin walls, cant take too much pressure
Have valves to stop blood travelling back the wrong way

Question 10

What are the 3 types of blood vessel

Answer 10

Cappilaries, arteries, veins

Question 11

Name the three structures of the cardio vascular system

Answer 11

Blood, blood vessels, heart

Question 12

Give 2 examples of non modifiable risks effecting blood pressure

Answer 12

Age

Genetics

Question 13

Define blood pressure

Answer 13

The amount of force the blood puts on the artery walls when passing through (mm/hg)

Question 14

Explain the blood circulation

Answer 14

Lungs
Pulminary vein
Left atrium
Left ventricle 
Aorta
Body
Vena Cava
Right atrium
Right Ventricle 
Puliminary artery

Question 15

Explain heart valves

Answer 15

Valves stop the blood from flowing in the wrong direction

Question 16

Describe arteries

Answer 16

Thick walls so can deal with pressure, carries blood away from the heart
eventually become capillaries