cd442 quiz #2

upper airway

larynx, pharynx, mouth,nose (LPMN)

lower airway

trachea, mainstream bronchi, lung ( TMBL)

how many pleurae around each lung

2

visceral

cover outer surface of lung

parital/costal

lines surface of inner wall

pleural space

thin fluid filled space between 2 pleurae ( creates suction/neg pressure)

lower respiratory system

ribs, sternum, vertebrae, diaphragm

labeling

oc, p, l, t, b, l

cerivcal

c1-c7 neck

thoracic

t1-t12 ( chest/ribs)

lumbar

L1-L5( lower back)

sacral

s1-s5 ( pelvis)

coccyx

tailbone

c1

atlas( holds skull)

c2

axis ( rotates skull)

ribs articulate w/ thoracic vertebra

true

costocentral articulation

ribs to vertebral body

costotransverse articulation

ribs to transverse process

maunbrium

" true ribs" 1-7 directly to sternum

body/corpus

"false ribs" 8-10 indirectly to sternum

xyphoid process

" free floating ribs" 11-12 do not attach

ribs move up and out

bucket handle

sternum moves up and down

pump handle

pectoral girdle

clavicle and scapula ( upper) CS

pelvic girdle

ilium, ischium, pubis ( lower) IIPsc

boyles law

volume increase- air pressure goes down/ space gets smaller- air pressure goes up

kinetic theory

lungs bigger- molecules spread out- lower pressure

lungs smaller- molecules crowd- higher pressure

atmospheric pressure

air pressure around us

alveolar pressure

pressure inside the lungs

intrapleural pressure

pressure between pleurae

neg pressure

lower than atmosphere: air flows in

pos pressure

higher than atmosphere: air flows out

resting lung volume

1000-1200 cc

resting expiatory level

1200 cc

lung& thorax work

together as unit

what happens to lung and throax when separated

diff positions and sizes

what happens to lung when separated from thorax

collapse

what happens to throax when separated from lungs

exapnds