Tissues Types And Mucsle Contractions

Question 1

Alveoli gas exchange maximised how

Answer 1

Shorter pathway for diffusion as many capillaries
Squamous cells are flatterned so gas exchange can take place

Question 2

Columnar epotheral cells ( trachea)

Answer 2

Goblet cells- release mucus to trap pathogen
Ciliar- sweeps mucus to the throat
Columnar cells contain this

Question 3

COPD effects

Answer 3

Thicker alveoli walls
More mucus secretion
Loss of elasticity in alevoili walls
Burst aleveoul

Question 4

Risk factors of atherosclerosis

Answer 4

Smoking
Bad diet
Obesity
Diabetes

Question 5

Stages of atherosclerosis

Answer 5

1- damage to endothelium
2- cholesterol accumulates causing inflammatory respons
3- wbc enter forming macrophages digesting cholesterol
4- foam cells form and burst causing hard plaque to form
5- narrows lumen in artery causing blood clos
6- can lead to heart attacks

Question 6

Name the 3 muscle typess

Answer 6

Cardiac- heart
Smooth-internal organs
Skeletal- attaches to bone