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Human Circulatory System Quiz

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Questions and Answers

What is the term used for the system of organs that includes the heart, blood vessels, and blood circulated throughout the body?

Vascular system

Respiratory system

Cardiovascular system (correct)

Pulmonary system

In vertebrates, the circulatory system is described as closed, meaning:

The blood only circulates within the heart

The blood leaves the network of blood vessels to reach the tissues

The blood never leaves the network of blood vessels (correct)

The blood circulates outside the body

What components are found in blood?

Plasma, red blood cells, white blood cells, and platelets (correct)

Plasma, red blood cells, hormones, and gases

Plasma, white blood cells, platelets, and minerals

Plasma, red blood cells, nutrients, and waste materials

Which organisms lack a circulatory system?

<p>Diploblasts such as sponges and comb jellies</p> Signup and view all the answers

What is the function of the cardiovascular system?

<p>Circulating nutrients, oxygen, and collecting waste materials</p> Signup and view all the answers

Study Notes

Circulatory System

The system of organs that includes the heart, blood vessels, and blood circulated throughout the body is referred to as the circulatory system.

Characteristics of Circulatory System in Vertebrates

In vertebrates, the circulatory system is described as closed, meaning that the blood is confined within blood vessels and is not mixed with other fluids.

Components of Blood

Blood consists of red blood cells, white blood cells, and platelets suspended in plasma.

Organisms Without a Circulatory System

Some invertebrates, such as flatworms, lack a circulatory system and instead rely on diffusion to transport nutrients and oxygen to their cells.

Function of the Cardiovascular System

The function of the cardiovascular system is to transport oxygen and nutrients to cells and remove waste products, thereby maintaining homeostasis and supporting the overall health of the organism.

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Description

Test your knowledge of the human circulatory system with this quiz. Explore the components and functions of the cardiovascular system, including the heart, blood vessels, and blood circulation. Learn about the two divisions of the circulatory system and enhance your understanding of this vital bodily system.