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phys exam 4

QuestionAnswer
Which part of the lungs is not in the conducting zone? Bronchi Bronchioles Alveoli Trachea alveoli
Type 1 alveolar cells provide an ______ layer, and Type 2 alveolar cells secrete ________. epithelial; surfactant
Cystic fibrosis ->thick/sticky mucus bc Defect. Cl chan.->Cl/h2o can't leave cells/thin mucus Defect. Cl chan.->more Cl outside cell, h2o follows Excessive Cl kills cilia, inhibit ciliary escalator Macrophages leave lungs due to Cl imbalance a defective chloride channel prevents chloride from leaving the cells, so water cannot leave the cells and thin out the mucous.
The flap that closes over the trachea to prevent food from going into the lungs is called the: bronchiole vocal folds epiglottis glottis epiglottis
cilia of cells (lining the respiratory part systems) beat upward to push particles to the mouth while air moves to alveoli True False true
Boyle's law P & V have inverse relation. In mix of gases, P each gas exerts is indep. of P others exert->each gas has partial P Gas exchange in lungs to blood must happen in vacuum Amount of gas dissolved in liquid->proportional to partial P When volume is decreased, pressure is increased, and when volume is increased, pressure is decreased
The partial P of oxygen in the atmosphere is __. The partial P of oxygen in the pulmonary veins and systemic arteries is __. The partial P of carbon dioxide in the alveoli is __, and the partial P of CO2 in the pulmonary arteries and systemic veins is __. 160mmHg; 100mmHg; 40mmHg; 46mmHg
only the unbound molecules of gas contribute to partial pressure True False true
respiratory alkalosis could be caused by _____. This leads to ___ in arterial Pco2 and a ____ of H+ ions in the blood. hyperventilation; decreases; decrease
Most absorption happens in the stomach. True False false
Which of the following is not a function of the GI tract? detox of foreign substances breakdown of molecules from macro to micromolecules creation of urine absorption creation of urine
Which sphincter causes heartburn? Lower esophogeal Upper esophogeal Ileocecal Pyloric lower esophogeal
The submucosa contains nerve plexuses. True False true
Please put the layers of the gut wall in order with 1 starting with the layer that surrounds the lumen. submucosa plexus muscularis longitudinal muscle myenteric plexus muscularis externa circular muscle epithelium with exocrine and endocrine cells submucosa plexus - 2 muscularis longitudinal muscle - 5 myenteric plexus - 4 muscularis externa circular muscle - 3 epithelium with exocrine and endocrine cells - 1
Please match the secretion with its cell type. Alkaline mucus HCL Histamine Pepsinogen Intrinsic factor parietal cells, mucous cells, ECL cells, chief cells Alkaline mucus->Mucous cells HCL->Parietal cells Histamine->ECL cells Pepsinogen->Chief cells Intrinsic factor->Parietal cells
Which of the following sphincters lets small amounts of chyme at a time into the small intestine? Ileocecal pyloric lower esophogeal upper esophogeal pyloric
Most digestion happens in the stomach. True False false
The small intestine is a smooth, straight tube. True False false
the histology ( the different layers ) of the digestive tract is highly conserved form the esophagus to the large intestine True False true
Renal corpuscle is made of ascending limb, the descending limb, and the proximal tubule glomerulus, Bowman's space, and Bowman's capsule glomerulus, the peritubular capillaries, and the nephron ascending limb, the descending limb, and the distal tubule the glomerulus, Bowman's space, and Bowman's capsule
Please put the anatomic structures in order of filtrate that is eventually excreted. Begin after the filtrate is filtered into Bowman's space: ureter collecting duct loop of henle proximal convoluted tubule distal convoluted tubule renal pelvis proximal convoluted tubule loop of Henle distal convoluted tubule collecting duct renal pelvis ureter
The renal cortex contains the renal corpuscle and convoluted tubules. True False true
The renal medulla contains the glomerulus and the proximal convoluted tubule. True False false
Please trace the correct anatomical path of a red blood cell (which do not get filtered) through the kidney. renal artery renal vein efferent arteriole bowman's capsule vasa recta glomerulus afferent arteriole renal artery afferent arteriole glomerulus efferent arteriole vasa recta renal vein
Created by: alaynak
 

 



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