Respiratory System

Question 1

What is breathing?

Answer 1

Movement of air in and out the lungs

Question 2

What is respiration?

Answer 2

Series of chemical reactions taking place inside cells to release energy

Question 3

Equation of aerobic respiration

Answer 3

Oxygen+glucose → carbondioxide+water

Question 4

What is anaerobic respiration

Answer 4

Process occurs when body cannot get enough oxygen for aerobic respiration to take place

Question 5

Nose

Answer 5

Hairs in nose trap some of dust particles in air, lining produces watery liquid called mucus (which makes air moist) and traps bacteria, blood vessels beneath lining warm up air before it passes into lungs

Question 6

Windpipe (trachea)

Answer 6

About 10cm long and 1.5cm wide, made from rings of cartilage and each ring is the shape of a ‘C’

Question 7

Bronchi

Answer 7

Windpipe divides into two smaller tubes called bronchi and are also made of rings of cartilage and has same lining of windpipe (trachea)

Question 8

Bronchioles

Answer 8

Bronchi divide into smaller tubes called bronchioles and have diameter of about 1mm

Question 9

What parts of the respiratory system separate the chest cavity?

Answer 9

Chest wall and diaphragm

Question 10

Chest wall

Answer 10

Made by ribs and their muscles, each rib is attached to joint in backbone allowing only small amount of movement

Question 11

What are the muscles between the ribs called?

Answer 11

Internal and external intercostal muscles

Question 12

Diaphragm (respiration)

Answer 12

Large sheet of muscle, separates the chest cavity from the abdominal cavity

Question 13

What are the two breathing movements?

Answer 13

Inspiration and expiration

Question 14

Inspiration/Expiration

Internal intercostal muscles

Answer 14

Relax/Contract

Question 15

External intercostal muscles

Answer 15

Contract/Relax

Question 16

Ribs

Answer 16

Up/Down

Question 17

Diaphragm muscles

Answer 17

Contract/Relax

Question 18

Diaphragm

Answer 18

Down/Up

Question 19

Chest volume

Answer 19

Increases/Decreases

Question 20

Air

Answer 20

In/Out

Question 21

What are air sacs?

Answer 21

Bubble-like structures at the end of each bronchiole

Question 22

What does each air sac contain?

Answer 22

Moist lining, thin wall and supplied with capillaries

Question 23

Oxygen (exchanging gases)

Answer 23

Dissolves in the moist linings of the air sacs and moves by diffusion through the walls of air sac and capillary next to it

Question 24

CO2 (exchanging gases)

Answer 24

Dissolves in blood plasma and moves by diffusion through capillary walls, air sac walls and into air sacs