BIO 224A RESP NOTES

Question 1

Surfactant function

Answer 1

-oily substance containing phospholipids
-protien that coast alveolar surface
- reduce surface tension

Question 2

Oxy-hemoglobin curve shifts

Answer 2

Left and right

Question 3

Left shift( Left shift, tissue behind)

Answer 3

-increased affinity
Low
(Pcos, H+, temp, 2-3 dP)
High
(pH)
______________
- Higher y -axis
- More O2 on Hb
- O2 must be away from tissue

Question 4

Right shift ( Right hand gives ( gives to tissue))

Answer 4

• Decreased affinity
  High
  ( Pcos, H+, temp, 2-3 dP)
  Low
  ( pH)
  ________
  -Decrease y-axis
• Less oxy on hemoglobin
• More O2 to tissue

Question 5

x and y axis

Answer 5

X= Oxygen Partial pressure
Y= Oxy saturation of heme

Question 6

Respiratory membrane components

Answer 6

-type 1 alveolar cells
-Basal lamina
- capillary endothelial cells

Question 7

Type I Alveolar cell ( Pheumocyte cell)

Answer 7

• Simple squamous epithelium
• Thin surface for gass exchange
• 97% of alveolar surface
  (CREATES REP. MEMBRANE)

Question 8

Type II Alveolar cell ( Septal cell)

Answer 8

• Cubodial
• = 10% alveolar cell wall
• SECRETE SUEFACTANT which reduce alveolar surface tension