SBI3U Exam Review: Circulatory
System questions and answers
graded A+
open circulatory system - correct answer ✔✔invertebrates have a circulatory system in which is
not entirely contained with blood vessels; tubular heart pumps blood through vessels that open
into spongey chambers called sinuses, from their blood bathes the body tissues, then collects in
another set of sinuses and goes back to the heart
coronary vessels - correct answer ✔✔vessels that cover the surface of the heart and supply the
heart muscle with the necessary nutrients
universal blood donor - correct answer ✔✔type O
hypertension - correct answer ✔✔a condition where a person's blood pressure is 140/90 or
higher for an extended period; also called high blood pressure
Closed circulatory system - correct answer ✔✔blood remains contained entirely within blood
vessels that extend throughout the body and is circulated more efficiently, nutrients, oxygen,
and wastes move in and out through the thin walls of the smallest blood vessels, can be
pumped under high pressure
ex. earthworms, squids, octopuses, and vertebrates
hemoglobin - correct answer ✔✔a protein that binds oxygen in the lungs and releases it
throughout the body
universal blood recipient - correct answer ✔✔type AB
System questions and answers
graded A+
open circulatory system - correct answer ✔✔invertebrates have a circulatory system in which is
not entirely contained with blood vessels; tubular heart pumps blood through vessels that open
into spongey chambers called sinuses, from their blood bathes the body tissues, then collects in
another set of sinuses and goes back to the heart
coronary vessels - correct answer ✔✔vessels that cover the surface of the heart and supply the
heart muscle with the necessary nutrients
universal blood donor - correct answer ✔✔type O
hypertension - correct answer ✔✔a condition where a person's blood pressure is 140/90 or
higher for an extended period; also called high blood pressure
Closed circulatory system - correct answer ✔✔blood remains contained entirely within blood
vessels that extend throughout the body and is circulated more efficiently, nutrients, oxygen,
and wastes move in and out through the thin walls of the smallest blood vessels, can be
pumped under high pressure
ex. earthworms, squids, octopuses, and vertebrates
hemoglobin - correct answer ✔✔a protein that binds oxygen in the lungs and releases it
throughout the body
universal blood recipient - correct answer ✔✔type AB
