Exam (2026 /
BIOL 252 Module 3
2027) Questions and Verified Answers,
100% Guarantee Pass
Circulatory System Network that transports blood, nutrients, gases, hormones,
and waste throughout the body
Cardiovascular System System consisting of the heart and blood vessels that
circulates blood
Lymphatic System Network that transports lymph, supports immune defense, and
returns fluid to bloodstream
Primary Functions of Circulation Transport, capillary exchange, immune defense, hemostasis,
temperature regulation, acid-base balance
Artery Blood vessel that carries blood away from the heart
Vein Blood vessel that carries blood toward the heart
Capillary Smallest blood vessel where exchange of gases, nutrients,
and wastes occurs
Arteriole Small artery that regulates blood flow into capillaries and
controls blood pressure
Venule Small vessel that collects blood from capillaries and delivers it
to veins
Systemic Circuit Pathway carrying oxygenated blood from heart to body and
deoxygenated blood back to heart
Pulmonary Circuit Pathway carrying deoxygenated blood to lungs and
oxygenated blood back to heart
Lumen Hollow interior space of a blood vessel through which
blood flows
Vasa Vasorum Small vessels that supply blood to walls of large vessels
Tunica Intima Innermost vessel layer with endothelium; involved in
clotting and vascular signaling
Endothelium Simple squamous epithelium lining vessels that regulates
exchange and vascular tone
, Endothelins Vasoconstrictive chemicals released by endothelium that
increase blood pressure
Hypertension Chronic high blood pressure often linked to excess
vasoconstriction
BIOL 252 Module 3
2027) Questions and Verified Answers,
100% Guarantee Pass
Circulatory System Network that transports blood, nutrients, gases, hormones,
and waste throughout the body
Cardiovascular System System consisting of the heart and blood vessels that
circulates blood
Lymphatic System Network that transports lymph, supports immune defense, and
returns fluid to bloodstream
Primary Functions of Circulation Transport, capillary exchange, immune defense, hemostasis,
temperature regulation, acid-base balance
Artery Blood vessel that carries blood away from the heart
Vein Blood vessel that carries blood toward the heart
Capillary Smallest blood vessel where exchange of gases, nutrients,
and wastes occurs
Arteriole Small artery that regulates blood flow into capillaries and
controls blood pressure
Venule Small vessel that collects blood from capillaries and delivers it
to veins
Systemic Circuit Pathway carrying oxygenated blood from heart to body and
deoxygenated blood back to heart
Pulmonary Circuit Pathway carrying deoxygenated blood to lungs and
oxygenated blood back to heart
Lumen Hollow interior space of a blood vessel through which
blood flows
Vasa Vasorum Small vessels that supply blood to walls of large vessels
Tunica Intima Innermost vessel layer with endothelium; involved in
clotting and vascular signaling
Endothelium Simple squamous epithelium lining vessels that regulates
exchange and vascular tone
, Endothelins Vasoconstrictive chemicals released by endothelium that
increase blood pressure
Hypertension Chronic high blood pressure often linked to excess
vasoconstriction
