Select your answer:
Topics:
Macronutrients & Micronutrients How the Eyes work Nutrition In Animal Pulse Circulation and Excretion Eye Physiology Pathology Introduction Cell Injury Iron Kinetics Living Organisms Medical Vocabulary Cellular Transport and Metabolism Heart Structure and Double Circulation Cosmetology Anatomy Body Systems and Medical Sciences Human Organ SystemOther quiz:
The Cardiovascular System: Blood Vessels and Hemodynamics › ViewThe hepatic portal system collects blood from the __________ and then routes it to the __________.
A. GI tract; liver
B. liver; kidneys
C. kidneys; liver
D. liver; GI tract
The Respiratory System › View
The air sacs that are covered with capillaries where gas exchange takes place are found in..?
A. bronchi
B. lungs
C. oxygen
D. alveoli