Circulatory System MCQs

Circulatory System multiple-choice questions (MCQs) explores various aspects of the circulatory system, including its components, functions, and related physiological processes.

MCQs created for these topics:

Whether you’re studying for an exam or seeking to deepen your understanding of human biology, these MCQs offer valuable learning opportunities for students and enthusiasts alike.Let’s dive into the MCQs below and expand your knowledge of human anatomy and physiology!

MCQ on Circulatory System

responsibilities of a circulatory system include _____

Delivering oxygen to cells and picking up carbon dioxide
Distributing hormones to cells
Maintaining body temperature by transporting heat
Transporting cells to fight infection
All of these

Correct Answer

All of these

_____ kinds of circulatory systems exist

5
3
2
7

Correct Answer

2

The circulatory system, also known as the cardiovascular system, is responsible for transporting blood, oxygen, nutrients, and waste products throughout the body. It consists of the heart, blood vessels (arteries, veins, and capillaries), and blood.

Open Circulatory Systems MCQs

In _____ , the animal’s heart pumps a bloodlike fluid called hemolymph into an open cavity
Open circulatory systems
Closed circulatory systems
Both of these
None of these

Correct Answer

Open circulatory systems

In an open circulatory system, the animal’s heart pumps a bloodlike fluid called hemolymph into an open cavity (called a hemocoel) through openings in the heart called _____

Ventricles
atria
ostia
valves

Correct Answer

ostia

In an open circulatory system, the animal’s heart pumps a bloodlike fluid called _____ into an open cavity (called a hemocoel) through openings in the heart called ostia

Plasma
hemoglobin
hemolymph
None of these

Correct Answer

hemolymph

When the hemolymph flows into the _____ in open circulatory system, it directly bathes the tissues of the organism with nutrients

Plasma
hemoglobin
lungs
hemocoel

Correct Answer

hemocoel

_____ possess an open circulatory system

Insects
Snails
clams
All of these

Correct Answer

All of these

oxygen is circulated via the _____ in insects

Tracheal exchange system
gills
Integumentary exchange
Lungs

Correct Answer

Tracheal exchange system

Closed Circulatory Systems MCQs

types of blood vessels are _____

1
2
3
4

Correct Answer

3

types of blood vessels include _____

Arteries
Veins
Capillaries
All of these

Correct Answer

All of these

Which of these animals have closed circulatory system?

Worms
octopus
squid
All of these

Correct Answer

All of these

Fish’s Circulatory System MCQs

When a fish’s heart pumps, blood leaves the heart through the _ that runs along the underside of the fish.

Pulmonary artery
Iliac artery
Vana cava
ventral aorta

Correct Answer

ventral aorta

The ventral aorta carries the blood to the _ in fish, and the blood then passes through the capillaries along the gills to pick up oxygen.

lungs
gills
Iliac artery
Vana cava

Correct Answer

gills

The oxygenated blood immediately flows from the gills into the _, which runs along the upper side of the fish.

dorsal aorta
Iliac artery
Vana cava
ventral aorta

Correct Answer

dorsal aorta

The _ carries the oxygenated blood to the rest of the fish’s capillaries.

dorsal aorta
Iliac artery
Vana cava
ventral aorta

Correct Answer

dorsal aorta

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