respiratory system

Question 1

trachea cartillage

Answer 1

c shaped

Question 2

innermost cells of trachea

Answer 2

ciliated epithelium

Question 3

diameter of a bronchiole

Answer 3

about 1 mm

Question 4

are bronchi also lined by ciliated epithelium

Answer 4

yes

Question 5

what does smooth muscle in the trachea do

Answer 5

constricts and allows air to be expelled with more force

Question 6

outer layer of trachea

Answer 6

connective tissue

Question 7

does a trachea have smooth muscle

Answer 7

yes

Question 8

role of smooth muscle

Answer 8

regulate flow of air into the lungs by dilating for more air and constricting for less

Question 9

where is smooth muscle found

Answer 9

walls of bronchi and bronchioles

Question 10

what do alveoli have instead of ciliated epithelium

Answer 10

squamous epithelium.one cell thick. thin and permeable

Question 11

where are elastic fibres found

Answer 11

all lung tissue so in alveoli

Question 12

role of elastic fibres

Answer 12

allow lung to stretch and recoil

Question 13

role of cartilage

Answer 13

ensure it stays open and because of its flexibility it can move and flex as we breather

Question 14

what do smooth muscle look like

Answer 14

petal shape with circles inside