L15

Question 1

what is the larynx?

Answer 1

passage for air only

Question 2

what is the epiglottis?

Answer 2

cartilage which prevents food from entering airway

Question 3

what are the two folds of the larynx which produces sound?

Answer 3

vocal and vestibular folds

Question 4

what is the function of trachea, cartilage rings, and what type of cell is it?

Answer 4

maintain patent airway
keeps trachea open
resp epi

Question 5

function of trachealis

Answer 5

contracts for coughing

Question 6

Why is the cartilage of the trachea c shaped?

Answer 6

protection and open airways, allows esophagus and trachealis to cough

Question 7

what is hilum?

Answer 7

where bronchi and blood vessels enter?

Question 8

how many lobes does the right and left lungs ahve?

Answer 8

3 on right
2 on left

Question 9

1 bronchi, cell type and cartilage

Answer 9

resp epi
complete cartilage and smooth muscle rings

Question 10

2 and 3 bronchi, changing cells and cartilage

Answer 10

rep epit decrease in height and globlet cell numbers reduce

cartialge plates

Question 11

bronchioles, cell, muscle

Answer 11

cuboidal epi
no cartilage but thick smooth muscle for bronchoconstriction/dilation

Question 12

terminal bronchioles function

Answer 12

each supplies a pulmonary lobule

Question 13

what are pulmonary lobules?

Answer 13

grapes of alveoli

Question 14

describe alveoli surface

Answer 14

large surface area covered in pulmonary capillaries

Question 15

what are pneumocytes? and what are the two types

Answer 15

lung epithelial cells

squamous and cuboidal

Question 16

squamous pneumocytes

Answer 16

forms resp membrane/blood-air barrier

Question 17

cuboidal cells

Answer 17

secretes surfactant to reduce surface tension