GRAT 2 Flashcards
vascular tone
how contracted SM is at any time
increase tone= increase constriction
vavor receptor
located throughout body
detect stretch degree and directly related to sodium channels
transcellular
goes from outside
needs help from transmembrane proteins
usually have transporters
paracellular
in between adjacent cells
force driving movement is chemical gradient
ascites
fluid, gas filled areas gone
urticania
hives filled with serous fluid
P cap
blood pressure, not same as arteriole bp
hydrostatic pressure within capillary
what affects Pcap
Increase/ decrease bp
viscosity
loss of blood
Pi Int
oncotic pressure, low number especially compared to Pcap
What effects Pi Int
toxin
blunt force trauma
lysis
lymph
by product of filtrate and contains intracellular debris etc
dynamic compression
when organism can move limbs and b/c of movement can compress and displace fluid in one direction
dead space ventilation
represents airflow without gas exchange
-blood does not get oxygenated, no CO2 exchange
alveolar ventilation
amount of air that gets to alveoli per unit of time
important with no underlying disease for gas exchange
rib cage recoil
in 2 directions, usually outward b/c low lung volume but can recoil inward if high lung volume
lung recoil
inward only
eupovea
normal quiet breating
dyspovea
labored breathing
tachypovia
hyperventilating
anatomic deadspace
structures that allow movement of gas throughout respiratory trees
surfactant
produced by alveoli type II cells
reduce surface tension, amphipathic
atelectasis
alveolar collapse, lost stability
pericytes
synthesize endothelium and basement membrane
true capillaries
single layer endothelial
NO SMOOTH MUSCLE
continuous capillary
found in muscle and adipose tissue
least permeable
fenestrated capillary
found in endocrine glands, glomerulus
has windows called fenestrae with membrane to allow larger structures to exit
discontinuous capillary
found in sinusoid
have large gaps and fenestration to allow movement, most permeable
properties of hemoglobin
stored in RBC
tetrameric
cooperative O2 binding, which is reversible
