205textnotes32 -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ----------------------------------------------------------------------------------------------------------Chapter 15: BLOOD FLOW AND THE CONTROL OF BLOOD PRESSURE ----------------------------------------------------------------------------------------------------------A.The Blood vessels ----------------------------------------------------------------------------------------------------------The Vascular Components of the Cardiovascular systemFig. 15-1: Model of the cardiovascular system - systemic and pulmonary circulation Systemic (high pressure) circulation: LA, LV, Aorta, arteries, resistance (variable radius) arterioles, capillaries, venules, collecting veins, venae cavae Pulmonary (low pressure) circulation: RA, RV, pulmonary artery, lung arterioles, lung capillaries, lung venules, pulmonary vein. Chemicals mediate smooth muscle contraction and relaxation in the arterioles (Table 15-1) Norepinephrine (alpha receptors) - constrictor Angiotensin II - constrictor Structural components of blood vessels (...
View Full Document

Ask a homework question - tutors are online