Blood Vessels Crossword

Blood circulates inside the blood vessels, which form a closed transport system
Vessels that carry blood away from the heart
Feeds blood into the capillary beds in the tissues from the arteries
Tiny interweaving capillaries that form a network of capillaries, where exchanges are made between blood and tissue cells
Drains the capillary beds
Venules empty into _____ that then empty into the great veins (venae cavae) which go into the heart
Lines lumen, interior wall of the vessels, thin layer of endothelium resting on basement membrane, decreases friction as blood flows through
Bulky middle layer, mostly smooth muscle and elastic fibers, controlled by the sympathetic nervous system, active in changing the diameter of the vessels
Outermost tunic, composed of fibrous connective tissue, its function is to support and protect the vessels
Prevent backflow of blood
The flow of blood from an arteriole to a venule (through a capillary bed)
A vessel that directly connects the arteriole and venule at opposite end of a capillary bed
Smooth muscle fibers that act as a valve to regulate blood flow into the capillary
Common in people who stand for long periods of time, pooling of blood in the feet and legs, inefficient venous return
Blood returning to the heart
Largest artery of the body
Veins draining the head and arms empty into ____.
Veins draining the lower body empty into the ____.
Surround the base of the brain, provides several routes for blood to get to the brain
Drain the digestive organs and deliver this blood to the liver
The process that provides all nutrient, excretory, and gas exchanges for a fetus