5 Written questions
5 Matching questions
- Sinusoidal Capillaries
- Atrial Natriuretic Peptide
- Mean Arterial Pressure
- Blood Viscosity
- a Microscopic blood vessels, walls of thin tunica intima, one cell thick. Size only allows one RBC at a time; Permit exchange of nutrients and wastes between blood and interstitial fluid.
- b ANP - Causes blood volume and pressure to decline (produced by atria of the heart0.
- c The stickiness of the blood due to formed elements and plasma proteins.
- d (MAP), average pressure in the arteries.
- e Have large fenstrations and intercellular clefts for the greatest permeability, even allowing passage of blood cells.
5 Multiple choice questions
- Neural and hormonal controls - counteract functuations in blood pressure by altering peripheral resistance.
- Blood flow caused by the pumping action of the heart, pressure results when flow is opposed by resistance.
- Collagen fibers that protect and reinforce vessels.
- Reflects two factors of the arteries close to the heart. The elasticity (compliance or distensibility), and the amount of blood forced into them at any given time.
- Smooth muscle and elastic fiber layer, regulated by sympathetic nervous system.
5 True/False questions
Where does Systemic Pressure decline? → Throughout the pathway.
Adrenal Medulla Hormones → (ADH)-(Vasopressin) - Causes intense vasoconstriction in cases of extremely low BP. Increases BP.
Autoregulation → Automatic adjustment of blood flow to each tissue in proportion to its requirements at any given point in time.
What is Resistance more important in influencing local blood flow? → Neural and hormonal controls - counteract functuations in blood pressure by altering peripheral resistance.
Where are Capillaries found? → Endothelium with sparse basal lamina.