Studied by 11 people
what helps to maintain pressure in the lungs?
pleura
in which part of the respiratory system does gas exchange take place?
alveoli
why might alveoli be prone to collapse?
too little surfactant
which gives a more accurate measurement of amount of O2 in a persons body?
PaO2
how does the heimlich maneuver work?
increases intrathoracic pressure to expel food
which of the following factors are NOT in the conducting zone?
alveoli
a persons body becpmes anxious and starts to hyperventilate. what will happen to the chemistry of their body?
increasing pH
why is CO2 considered acidic?
it is loosely bound as carbonic acid and hydrogen ions
which of the following is true of obstructive lung disease?
decreased trapped air
in pulmonary edema, when the left ventricle cannot efficiently pump blood out, the left atrium cannot deliver blood to the left ventricle, and pressures increase in the pulmonary veins as they attempt to deliver blood to the left atrium. in this case of increased hydrostatic pressure in the pulmonary veins, what happens to the alveoli?
has no effect on alveoli
which of the following is specialized for filtration and is the start of making urine?
glomerulus
which of these is most important in glomerular filtration rate?
capillary permeability
which of the following is important in the regulation of blood pressure?
juxtaglomerular apparatus
which of the following extrinsic controls over the kidneys constricts smooth muscle, stimulates the resabsorption of Na+, and stimulates the hypothalamus to release ADH?
renin angiotensin II mechanism
how does water move through the wall of the nephron tubule?
osmosis
which of the hormones results in less water being reabsorbed in the nephron loop?
antidiuertic hormone
why might a person have glycosuria?
the glomerulus filtering process is saturated
which of the following explains how tubular reabsorption works?
substances from tubules move to blood
which of the following is a function of the kidney?
all of the above
where is urine stored in the urinary system?
urinary bladder
what would not make it through the filtration membrane of the glomerulus?
protein
what part of the nephron triggers start of renin-angiotension aldosterone system?
juxtaglomerular apparatus
the myogenic mechanism acts to restore the glomerular filtration rate (GFR) by changing:
vessel diameter
which of these is most important in GFR?
capillary permeability
how does water move through the wall of the nephron tubule?
osmosis
which of the hormones can cause less water being reabsorbed in the nephron?
antidiuretic hormone
a blood creatine levels is used to measure renal clearance prior to injection of CT scan dye because this is:
completely filtered but neither reabsorbed nor secreted
a drug that inhibits angiotensis-converting enzyme (ACE) may lead to:
decreased blood pressure
how does urine move from kidneys to bladder?
ureters
which of the following is involved in chemical digestion of proteins?
trypsin
the pancreas secretes bicarbonate into which area?
duodenum
which of the following breaks down facts?
bile
acetaminophen overdose has a negative effect on which organ?
liver
for what reasons might someone need a "poop pill"?
correct loss of microbiota
what happens to HDL in the body?
excreted by liver
Note