Capillaries
These capillaries have tiny pores that increase filtration, making them common in the kidneys and small intestine.
What are fenestrated capillaries
These blood vessels are defined by the fact that they carry blood away from the heart.
What are arteries
Veins have thinner walls and larger lumens compared to arteries, which have thicker walls and smaller lumens and/or Veins have valves to prevent backflow, while arteries do not.
What is one main structural difference between veins and arteries
These arteries expand when blood pressure rises during ventricle contraction
What is elastic arteries
This type of blood vessel has thick, elastic walls to withstand high pressure and help keep blood moving between heartbeats
What are arteries?
This type of capillary has tightly joined endothelial cells and a continuous basement membrane, and it’s the most common type in skeletal muscle and skin
What are continuous capillaries
These are the smallest of all arteries
What are arterioles
Tunica Intima, Tunica Media, and Tunica Externa
What are the three tunics that form the wall of a vein
The abnormal heart sounds made by abnormal patterns of blood flow in the heart?
What are murmurs
These blood vessels return blood back to the heart and often contain valves to prevent backflow.
What are veins?
These specialized structures at the entrance to many capillary beds can open/close to regulate how much blood enters local capillaries based on tissue needs
What are precapillary sphincters
This specific type of artery, including the aorta, has a high elastin content to dampen the surge of blood pressure.
What are elastic (or conducting) arteries
Veins have thinner walls and less elasticity because they operate under lower pressure and do not undergo significant vasoconstriction or dilation
Why do veins have thinner walls and less elasticity than arteries?
The path of blood from the heart through the lungs and back to the heart in one circuit?
What is pulmonary circulation
These tiny blood vessels are the main site where oxygen, carbon dioxide, nutrients, and wastes are exchanged between blood and tissues.
What are capillaries?
In capillary exchange, this pressure primarily pushes fluid out of the capillary into the interstitial space, and it rises in conditions like venous congestion
What is capillary hydrostatic pressure
These are the very first branches to exit the ascending aorta
What are the coronary arteries?
This vein drains the kidneys and empties directly into the inferior vena cava.
What are the renal veins?
This region of the heart circulates oxygen rich blood throughout the aorta and body
What is left ventricle
By constricting or dilating, these blood vessels help regulate blood pressure and control how much blood reaches different organs
What are arterioles?
These capillaries have large gaps and a discontinuous basement membrane, allowing proteins and even cells to pass—classically found in liver, spleen, and bone marrow
What are sinusoidal (discontinuous) capillaries
These specific arteries, which are branches of the internal thoracic arteries, supply the anterior thoracic walls
What are the anterior intercostal arteries
They are responsible for transporting nutrient-rich blood from the digestive organs, including the stomach, intestines, pancreas, and spleen, to the liver
What is the hepatic portal vein
How many steps are in the blood flow of the heart?
What are 14 steps of heart blood flow
This function of blood vessels helps maintain body temperature by increasing skin blood flow to release heat or decreasing it to conserve heat.
What is thermoregulation (temperature regulation) via vasodilation and vasoconstriction?