CV System Blood Vessel Homeostasis - OpenStax A&P 2e Ch20

What are the two types of neural (local) mechanisms involved in vascular homeostasis?

• Vasoconstriction and Vasodilation

• Endocrine and Systemic

• Metarteriole and Capillaries

• Arteriovenous and Anastomosis

What is the primary function of the Renin-Angiotensin-Aldosterone System (RAAS)?

• Increase blood pressure

• Decrease blood pressure

• Regulate body temperature

• Control blood sugar levels

Which hormone is released by the adrenal cortex in the RAAS System?

• Aldosterone

• Insulin

• Cortisol

• Glucagon

What effect does Angiotensin II have on vascular smooth muscle?

• Vasoconstriction

• Vasodilation

• No effect

• Muscle relaxation

Which organ releases Renin in response to low blood pressure?

• Kidney

• Liver

• Heart

• Lungs

Which stage of atherosclerosis involves intracellular and extracellular lipid accumulation?

• Fatty streak

• Intermediate lesion

• Atheroma

• Fibrous plaque

What is a potential outcome of an advanced lesion in atherosclerosis?

• Intracellular lipid accumulation

• Fibrotic/calcific layers

• Plaque rupture, thrombosis, and blockage of blood flow

• Normal histology, macrophage infiltration