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Lung Structure and Blood Circulation Explained

Lung Structure and Blood Circulation Explained

Assessment

Interactive Video

Biology, Science, Other

6th - 8th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video explains the structure and function of the lungs, detailing how air travels through the trachea into the bronchi and alveoli, where oxygen is exchanged for carbon dioxide. It describes the blood flow from the lungs to the heart and throughout the body, highlighting the role of capillaries in nutrient and waste exchange. The video concludes with a brief mention of the respiratory cycle and a preview of the next video on heart function.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many lobes does the right lung have?

Two

One

Three

Four

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the trachea?

To filter waste

To digest food

To carry air into the lungs

To pump blood

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the tiny air sacs at the end of the airways called?

Bronchi

Alveoli

Capillaries

Veins

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What waste gas is released into the bloodstream by cells?

Carbon Dioxide

Oxygen

Hydrogen

Nitrogen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Through which veins does oxygen-rich blood travel from the lungs to the heart?

Coronary veins

Femoral veins

Pulmonary veins

Jugular veins

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which valve opens to allow blood from the left atrium to the left ventricle?

Aortic valve

Tricuspid valve

Pulmonary valve

Mitral valve

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What connects small artery branches to small veins in the body?

Bronchi

Veins

Arteries

Capillaries

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