BIOL 253 Exam 2 UPDATED ACTUAL Exam Questions and CORRECT Answers

BIOL 253 Exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
transmural pressure - CORRECT ANSWER - pressure across a wall



parts of the upper respiratory tract - CORRECT ANSWER - nasal conchae
nasopharynx
oropharynx
oringopharynx
larynx


parts of the lower respiratory tract - CORRECT ANSWER - trachea
bronchi
bronchioles
alveoli


conducting zone - CORRECT ANSWER - moves air
not involved in gas exchange
anatomical deadspace (150 mL)


which three things increase as you go up the respiratory tract? - CORRECT ANSWER -
diameter
cilia
goblet cells
cartilage


what decreases as you go up the respiratory tract? (down to terminal bronchioles) - CORRECT
ANSWER - smooth muscle

, where is c-shaped cartilage found? - CORRECT ANSWER - trachea



where are rings of cartilage found? - CORRECT ANSWER - primary bronchi



where are plates of cartilage found? - CORRECT ANSWER - secondary, tertiary, smaller
bronchi


what do goblet cells do? - CORRECT ANSWER - make mucus



what do cilia do? - CORRECT ANSWER - move mucus



type 1 pneumocyte - CORRECT ANSWER - most abundant
makes up the alveolar epithelium


type 2 pneumocyte - CORRECT ANSWER - makes surfactant



alveolar macrophage - CORRECT ANSWER - eats dust



basement membrane is made by - CORRECT ANSWER - alveolar epithelium
capillary endothelium


3 barriers to movement of gases - CORRECT ANSWER - type 1 pneumocytes (alveolar
epithelium)
basement membrane (extracellular matrix)
capillary endothelium