Human Systems

Question 1

Where do arteries carry blood?

Answer 1

Away from the heart.

Question 2

Where do veins carry blood?

Answer 2

To the heart.

Question 3

What do red blood cells carry?

Answer 3

Oxygen around the body.

Question 4

What do white blood cells do?

Answer 4

Fight against diseases.

Question 5

What does plasma do?

Answer 5

Acts as a medium to carry blood cells.

Question 6

Wha do Platelets do?

Answer 6

Clot blood.

Question 7

What do Bones do?

Answer 7

Provide shape, protection and support for the body.

Question 8

What do cartilages do?

Answer 8

Act as a shock absorber by reducing friction between bones.

Question 9

What do ligaments do?

Answer 9

Connect bones.

Question 10

What do tendons do?

Answer 10

Connect the muscles and bones.

Question 11

What do connective tissues do?

Answer 11

Support and connect other tissues from the connective tissue sheath to the tendons.

Question 12

What are the 4 chambers in the heart?

Answer 12

Right atria, left atria, right ventricle, left ventricle.

Question 13

Why are ventricles very thick.

Answer 13

So they can withstand the great amount of pressure.

Question 14

Why is the left ventricle thicker than the right ventricle?

Answer 14

Because it is the main powerhouse of the heart.

Question 15

What is the trachea made of?

Answer 15

Cartilage rings for support.

Question 16

Why are the bronchioles needed?

Answer 16

To increase the surface area from the bronchi for gas exchange.

Question 17

What is at the tip of the bronchioles?

Answer 17

Alveoli.

Question 18

What are the alveoli for?

Answer 18

To increase the surface area for gas exchange and allow efficient gas exchange.

Question 19

Why is the alveoli in the shape of a bunch of grapes?

Answer 19

To further the surface area for gas exchange even more.

Question 20

What is gas exchange?

Answer 20

The exchange of oxygen to carbon dioxide in the alveoli.

Question 21

What are the two types of respiration?

Answer 21

Aerobic and anaerobic.

Question 22

What is the equation for aerobic respiration?

Answer 22

Glucose + oxygen -> carbon dioxide + water.

Question 23

Why does your heart rate increase during exercise?

Answer 23

Because when you exercise you need more oxygen (red blood cells) to be pumped to your lungs, which is done by your heart so it needs to speed up in order to keep up with your increased movement.