2026 COMPLETE QUESTIONS AND ANSWERS
GRADED A+
◉ Anatomy of major arteries picture. Answer:
◉ Arteries of major veins. Answer:
◉ Blood circulates through the body and functions to. Answer: •
Transport oxygen and nutrients to all tissues
• Remove waste products of cellular metabolism
• Play a critical role in the body's defenses/immune system, and
serve in maintaining body homeostasis
◉ Arteries - arterioles. Answer: transport blood away from the heart
◉ Arterioles. Answer: small vessels that receive blood from the
arteries
,ØSmalller branches of arteries that control the amount of blood
flowing into the capillaries in specific areas through the degree of
contraction of smooth muscle in the vessel walls (vasoconstriction
or dilation)
◉ Veins - venules. Answer: carry blood toward the heart
◉ Venules. Answer: small vessels that gather blood from the
capillaries into the veins
conduct blood from the capillary beds toward the heat
◉ Capillaries. Answer: Microscopic vessel through which exchanges
take place between the blood and cells of the body
Very small vessels organized in numerous networks that form the
Microcirculation within tissues
◉ systemic circulation. Answer: The branch of the circulatory
system that supplies all body organs and then returns oxygen-poor
blood to the right atrium via the veins.
Exchange of gases, nutrients, and wastes between the blood and
cells throughout the body
, ◉ Pulmonary circulation. Answer: flow of blood from the heart to
the lungs and back to the heart
Gas exchange of oxygen and carbon dioxide in the lungs
◉ The walls of the arteries and veins are made up of. Answer: 3
layers
1) tunica intima
2) tunica media
3) tunica adventitia
◉ Tunica intima. Answer: the innermost layer of a blood vessel,
composed of a single layer of squamous epithelial cells over a sheet
of connective tissue; its smooth, frictionless surface allows blood to
flow smoothly through the vessel
◉ Tunica media. Answer: The middle and thickest layer of tissue of a
blood vessel wall, composed of elastic tissue and smooth muscle
cells that allow the vessel to expand or contract in response to
changes in blood pressure and tissue demand.