Breathing And Exhale

Question 1

What is the trachea

Answer 1

The ‘windpipe’ that runs down and connects from the mouth to the lungs lined with rings of cartilage which always keep it open

Question 2

What is the bronchus

Answer 2

The part of the trachea that splits into the left and right bronchus leading to the lungs

Question 3

What is the bronchiole

Answer 3

The part of the bronchus that splits again into thousands of smaller tubes called bronchioles which take air deeper into the lungs

Question 4

Whats the aveoli

Answer 4

Tony air sacs found at the end of bronchioles where oxygen moves into the blood and Co2 moves out

Question 5

What are the intercostal muscles

Answer 5

Muscles that run between the ribs and from the chest wall - they contract and relax with the diaphragm when you breathe

Question 6

Whats the diaphram

Answer 6

Dome shaped flat sheet of muscle under the lunge that contracts and relaxes during breathing

Question 7

What happens to the body’s components when inhaling

Answer 7

Diaphragm: contracts and hardens, moves upwards
Intercostal muscles: contracts up and out
Ribcage: volume increases and stretches
Pressure inside chest: decreases below atmospheric pressure
Movement of air: moves into lungs

Question 8

What happens to the body’s components when your exhaling

Answer 8

Diaphragm: relaxes and retracts
Intercostal muscles: relaxes
Ribcage: volume decreases
Pressure inside chest: moves out of lungs
Movement of air:

Question 9

Describe the journey of respiration

Answer 9

Oxygen molecules move from alveoli into into your body and blood capillaries to be taken to the heart or lungs. blood carries the oxygen to all your body’s cells. Inside the cells, oxygen helps make energy. While doing that, it creates a waste gas called carbon dioxide which is removed from aveoli and breathed out of our Nasal and Buccal cavities.

Question 10

What are the adaptations of aveoli

Answer 10

Rich blood supply
1 cell thick
Large surface area

Question 11

Describe ventilation

Answer 11

During inhalation the diaphragm contracts enabling the intercostal muscles to also contract. This increases the volume of the ribcage and therefore decreases the pressure for air to move in.

Question 12

What is the area of your bidy containing the lungs, diaphram, Inter-muscles

Answer 12

Thorax