respiratory system

Question 1

what is the respiratory process

Answer 1

process by which the body takes oxygen in and removes carbon dioxide

Question 2

mouth to lungs route

Answer 2

nasal cavity 
pharynx
larynx
trachea
lungs
bronchi
bronchioles
alveoli

Question 3

inspiration process

Answer 3

diaphragm contracts and flattens, and external intercostal muscles lift outwards and upwards, which then decreases the air pressure within the lungs

Question 4

expiration process

Answer 4

diaphragm relaxes and move upwards, intercostal muscles allow ribs to return to their resting position. volume of chest cavity has decreased, which increases the air pressure inside the lungs

Question 5

what is inspiration (exchange of gases)

Answer 5

during inspiration, alveoli are supplied with air in oxygen and low in carbon dioxide. Blood capillaries arriving at the alveoli is low in oxygen and high in carbon dioxide. different contractions will mean blood and air results are different

Question 6

effects of physical activity

Answer 6

1. rate and depth of breathing increases even before exercise
2. Rate and depth will increase rapidly and furthermore during exercise
3. Increase in rate and depth which is in proportion to an increase in exercise effort

Question 7

how does respiratory system abs cardiovascular system work together

Answer 7

by circulating the blood and oxygen throughout the body. Firstly by air moving in and out of the lungs. Secondly the blood moves in and out of the lungs through pulmonary arteries and veins that are connected to the heart