Blood circulatory system

Question 1

Tissue

Answer 1

Many cells working together (blood)

Question 2

Plasma

Answer 2

transports RBCs, WBCs, carbon dioxide , platelets and hormones around the body
Transport heat around the body
Plasma is a solvent

Question 3

Red Blood Cells (RBCs)

Answer 3

Transports oxygen around the body
Produced in red bone marrow
Broken down by liver

Question 4

RBCs adaptions to transport oxygen

Answer 4

Biconcave shape to allow max surface area
Contains iron pigment haemoglobin helps carry oxygen
Flexible

Question 5

White Blood Cells

Answer 5

Fights infection
Produced in bone marrow
Lymphocytes
Monocytes

Question 6

Lymphocytes

Answer 6

Act in lymphatic system
Produce antibodies

Question 7

Monocytes

Answer 7

Found all over the body
Engulf and destroy pathogens

Question 8

Platelets

Answer 8

clot the blood to reduce blood loss and prevent entry of micro organisms
Haemophiliacs can’t form blood clots

Question 9

Blood groups

Answer 9

A , B , AB , O

Question 10

Rhesus factor

Answer 10

85% of people have a rhesus factor on their RBCs
Rh+ Rh-

Question 11

The circulatory system

Answer 11

Open - heart pumps blood into vessels that are open ended , blood leaves the vessel and flows around the cell , insects

Closed - Blood remains in a continuous system of blood vessels , blood always enclosed in a blood vessel , animals

Question 12

Closed system advantages

Answer 12

Blood pumped faster
Blood flow rate to different organs can be changed

Question 13

Arteries

Answer 13

Carry blood away from heart

Question 14

Lymphatic vessels

Answer 14

Tubes that bring excess tissue fluid back to circulatory system

Question 15

Lymph nodes

Answer 15

Contains WBC’s that defend against disease

Question 16

Lymphatic system functions

Answer 16

Drainage - returns tissue fluid to circulatory system
Transport - carries fat to skin and other organs for storage
Defence - filters blood - lymph nodes contain WBC’s as the lymph passes through these , any pathogens in it get destroyed

Question 17

What blood vessel carries blood richest in oxygen

Answer 17

Question 18

What blood vessel carries blood between the intestine and liver

Answer 18

Hepatical vein

Question 19

What blood vessel carries blood lowest in metabolic waste

Answer 19

Question 20

Carries blood into right atrium of heart

Answer 20

Vena cava

Question 21

Coronary artery

Answer 21

Question 22

Pu

Question 23

Three stages of cardiac cycle

Answer 23

Stage 1: due to pressure from exerted by heartbeat blood enters atria
The ventricles are relaxed
All valves are close

Stage 2: atria contract
Pressure opens av valves tricuspid and bicuspid valves are forced open
Blood is pumped from atria to the ventricles

Stage 3:
Ventricles contract
Tricuspid and bicuspid are forced shut
Semi lunar valves are forced open and blood is pumped out of body