Systems Forgotten

Question 1

What is the role of the respiratory system?

Answer 1

The role of the respiratory system is to move air in and out of the lungs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the bloodstream.

Question 2

What is the role of the stomach?

Answer 2

Continuing the breakdown of food and the storage of food. (use of stomach acid and hydrochloric acid)

Question 3

What is the role of the small intestine?

Answer 3

Digested food and enzymes (type of protein in a cell), are absorbed through the walls into the blood stream.

Question 4

What is the role of the large intestine?

Answer 4

Absorbs water, vitamins and salts into the blood stream.

Question 5

What is the proper name for the thigh bone?

Answer 5

Femur

Question 6

What is the proper name for the funny bone?

Answer 6

Humerus

Question 7

What is the proper name for the knee cap?

Answer 7

Patella

Question 8

What is the role of the pancreas?

Answer 8

Produces insulin which controls blood sugar levels.

Question 9

What is the role of the rectum?

Answer 9

Stores waste before removal.

Question 10

What is asexual reproduction?

Answer 10

Reproduction which does not involve the fusion of gametes. Offspring arise from a single cell or multicellular organism.

Question 11

What is sexual reproduction?

Answer 11

Reproduction through the fusion of two gametes. (sperm and egg cells).

Question 12

Label a skeleton

Answer 12

Skull - head
Clavicle - across the top of the shoulders
Ribs - the ring ma-bobies around your chest
Sternum - bone going down the centre of your chest (also known as the breastbone and protects lungs and stuff)
Humerus - funny bone above elbow
Vertebrae - Spine leading from neck to pelvis
Pelvis - hips
Femur - thigh bone
Tibia - skinny bone on the forelegs. Outer side.

Question 13

Artery Description

Answer 13

thick muscular/elastic wall
Carry blood away from the heart
Carry oxygenated blood (except for the pulmonary vein)
Blood is under high pressure (it is being pumped)
Are deeper down in the body
No valves present

Question 14

Arteries, capillaries or veins?:
Carry blood under high pressure
Carry deoxygenated blood (except for the pulmonary vein)
Are deeper down in the body
Have very thin walls, often one cell thick
Contain valves to prevent the backflow of blood
Have thick muscular/elastic wall
Have a thin muscular wall
Are the site of transfer of respiratory gases (diffusion and osmosis

Answer 14

Arteries
Veins
Arteries
Capillaries
Veins
Arteries
Veins
Capillaries

Question 15

Vein Description

Answer 15

Thin muscular wall
Carries blood towards the heart
Carry deoxygenated blood (except for the pulmonary vein)
Blood under low pressure; movement back to the heart is assisted by body muscles
Close to the surface
Valves present to prevent the back-flow of blood

Question 16

Capillary Description

Answer 16

Very thin wall, often one cell thick
Connect arteries and veins
The site of transfer of respiratory gases
Diffusion of gases and osmosis occurs here
Many are close to the surface
No valves present

Question 17

What does the diaphragm do?

Answer 17

A muscle at the base of the lungs which helps us breathe - it contracts to draw air into lungs and relaxes to push air out of the lungs.

Question 18

What does the trachea do?

Answer 18

A tube carrying air to and from the lungs

Question 19

What does the bronchi do?

Answer 19

Carry air from the trachea down to each lung.

Question 20

What does the ribs do?

Answer 20

Bones that protect the lungs and allow them to expand.

Question 21

4 chambers of the heart and the path the blood takes

Answer 21

Right and left ventricle of the heart - located in the bulbous section of the heart.
Right atrium - above the right ventricle. Contains two veins coming off it from opposite sides. These are the superior and interior venacova.
Left atrium - above left ventricle. Contains two veins coming off it which are closer together. These veins are called pulmonary veins.
Aorta - at top of the heart.