Which of the choices below does not explain why low capillary pressures are desirable?
A) Low blood pressure is associated with longer life span than high blood pressure.
B) Low capillary pressure reduces the load of drainage the lymphatic drainage must handle.
C) Capillaries are fragile and high pressures would rupture them.
D) Most capillaries are extremely permeable and thus even low pressures force solute-containing fluid out of the bloodstream.
A
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Julia is breathing 14 times per minute, with a tidal volume of 520 mL and a dead space of 152 mL. Lyle is breathing 15 times per minute, with a tidal volume of 400 mL and a dead space of 175 mL. Which patient has better alveolar ventilation?
What will be an ideal response?
Which regions of the sarcomere shorten during skeletal muscle contraction?
1.The A-band
2.The H-zone
3.The Z-line
4.The thin filament
5.The thick filament
What is the name for the "ball" of capillaries found in the renal corpuscle?
A) afferent arteriole B) glomerulus C) peritubular capillaries D) efferent arteriole
The lungs receive a systemic blood supply by way of which vessel(s)?
A. Pulmonary veins B. Left pulmonary artery C. Bronchial arteries D. Lobar arteries E. Right pulmonary artery