Why do capillary beds have such low pressure?
A. The don’t, they have very high blood pressure to force the diffusion of oxygen and nutrients into cells.
B. Fluid loss from arteries is high enought that pressure drops by the time blood reaches capillaries.
C. The total cross-section diameter of the arterial circulation increases with progression from the artery to arteriole to capillary,leading to reduced blood pressure.
Select your answer:
Topics:
Heart and Blood Vessels Major Internal Organs of the Body Trichology Adaptive Immune System Joints Axial & Appendicular Skeleton Joints in our Body Sterile Medication Products EKG Medical Term Human Eye and Colourful World Selective Breeding Gaseous Exchange in Humans Division of Microbiology Body Movements Microbes and Infectious DiseaseOther quiz:
Physical Activity › ViewType of brain injury that results from a blow or jolt to the head or upper body
A. Fracture
B. Concussion
C. Head trama
Microbiology › View
Which event occurs with the sensitizing dose of allergen?
A. Histamine acting on smooth muscle
B. Degranulation
C. Binding of IgE by the Fc region to mast cells and basophils
D. Binding of allergen to adjacent IgE binding sites on mast cells and basophils