Blood Vessels (Unit 2 Part 3)

they promote an increase in cardiac output as well as generalized vasoconstriction

atrial natriuretic peptide

ADH (antidiuretic hormone)

• 1. it acts a vasoconstrictor
• 2. it promotes the release of aldosterone and ADH

Endothelium derived factors

• 1. direct renal mechanism
• 2. indirect renal mechanism

it alters blood volume which will increase the kidney filtration rate

it counteracts a decline in arterial blood pressure by causing systemic dilation

by pulse and blood pressure

by altering the stretch and recoil of elastic arteries during each cardiac cycle

by using ascultatory method which relies on the use of a blood pressure cuff to alternately stop and reopen blood flow in to the brachial artery of the arm

the slow, intermittent flow of blood through the capillaries

capillary exchange

the force of fluid against a membrane

the force opposing hydrostatic pressure and is created by the presence of large, nondiffusible molecules that are prevented from moving through the capillary membrane

if the net HP exceeds the net OP

the measure of friction between blood and the vessel wall

• 1. blood viscosity
• 2. blood vessel length
• 3. blood vessel diameter

blood flow increases

blood flow decreases

peripheral resistance

• 1. vasoconstriction
• 2. vasodilation