5 Written questions
5 Matching questions
- Angiotensin II
- Adrenal Medulla Hormones
- Vascular anastomoses
- Chronic Hypotension
- a Kidney release of renin generates angiotensis II, which causes vasoconstriction. Increase BP.
- b 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.
- c Norepinephrine and Epinephrine increase blood pressure - cause vasoconstriction and increase cardiac output.
- d Merging blood vessels, more common in veins than arteries. Provdes alternate pathways (collateral channels) for blood to reach a given body region. If one branch is blocked, the collateral channel can supply the area with adequate blood supply.
- e Hint of poor nutrition and warning sign for Addision's disease (adrenal isnsufficiency) or hypothyroidism.
5 Multiple choice questions
- Causes BP to drop by inhibiting ADH.
- Blood viscosity, total blood vessel length, blood vessel diameter.
- In all tissues except for cartilage, epithelia, cornea and lens of eye.
- Occurs when short term autoregulation cannot meet tissue nutrient requirements. Either the number of vessels to a region increases or existing vessels enlarge.
- Formed when venules converge; Composed of three tunics; Return blood to the heart, facilitated by valves in veins and in limbs.
5 True/False questions
Antidiuretic Hormone → (ADH)-(Vasopressin) - Causes intense vasoconstriction in cases of extremely low BP. Increases BP.
When is Angiogenesis common in the heart? → In the Aorta.
What is directly proportional to Blood Flow (F)? → Blood hydrostatic pressure gradient. - If P increases, BF speeds up.
Tunica Media → Formed when capillary beds unite. Allow fluids and WBC's to pass from the bloodstream to tissues. Collect blood from capillaries and pass it on to veins.
Acute Hypotension → Temporary low BP and dizziness when suddenly rising from a sitting or reclining position.