RESPIRATORY Flashcards Preview

BIO DEATH #1 > RESPIRATORY > Flashcards

Flashcards in RESPIRATORY Deck (18)
Loading flashcards...
1

4 integrated processes in respiration

ventiliation: exchange of air between atmosphere & lungs
exchange of oxygen and CO2 between lungs&blood
transport of oxygen and CO2 in the blood
exchange of gases between blood and cells

2

ficks law of diffusion

(concentration difference x surface area x T)/ square root of molecular weight x distance
usually very large but thin

3

breathe through entire surface area of the body

unicellular, sponges, flat worms

4

breath through entire skin surface

earth worms, subset amphibians
skin must be moist

5

Gills

respiration in aquatic animals
gills surface area larger than total body surface

6

Tracheal system

air is delivered directly to the body cells

7

Lungs

must be integrated with the circulatory system to move gases to and from the cell and tissues

8

surfacant

prevent lung collapse
increased pulmonary compliance
secreted by alveolar cells

9

fused basement membranes

membranes of alveolar cells and capillaries are fused
permitting rapid gas exchange

10

hemoglobin

Fe bonds with Oxygen

11

hemocyanin

oxygen binds with Cu

12

oxyhemoglobin dissociation curve shift to right

more O2 is released per given PO2

13

oxyhemoglobin dissociation curve shift to left

less O2 is released per give PO2

14

elastic fibers

allow elastic recoil of the lungs

15

positive pressure breathing

frogs. use boyles law to fill oral cavity with air and use teh moving up of the bottom of the oral cavity to push air to lungs

16

negative pressure breathing

mammals

17

boyles law

P1V1=P2V2

18

gas exchange of 02 and CO2

O2 slowly decreases then increases 160, 104, 104, 40, 40,120
CO2 increases a small degree then decreases .2, 40, 40, 45, 45, 27