Human Heart and Lung Anatomy Quiz

Match the following heart structures with their functions, using the provided word bank:

The primary function of the _______ is to facilitate gas exchange, absorbing _______ and releasing _______.

What is a muscle located below the lungs that plays a crucial role in breathing?

During _______, the diaphragm _______ to increase the space in the chest cavity, allowing air to flow into the lungs.

When you breathe out during _______, the diaphragm _______, forcing air out of the lungs.

Tiny air sacs in the lungs called _______ are crucial for exchanging gases with the bloodstream.

The movement of the _______ helps protect the lungs and also aids in the breathing process.

To bring in more air, the lungs _______ as the diaphragm moves downward.

The expulsion of air during breathing involves the lungs and the _______ returning to their normal size.

_______ is the process of taking air into the lungs, while _______ is the process of expelling air out.

The exchange of _______ and _______ occurs in the alveoli during the breathing process.

What is the SA node commonly referred to as, and why is it important?

Where is the SA node located in the heart?

What type of signals does the SA node generate to regulate the heartbeat?

After the SA node generates an impulse, where does the electrical signal first spread?

What happens to the atria when they receive the electrical impulse from the SA node?

After the right atria contract, where does the electrical signal travel next?

Why does the AV node delay the signal before sending it to the ventricles?

What happens in the ventricles after they receive the electrical impulse?

How does the SA node regulate heart rate under normal conditions?

What can occur if the SA node does not function properly?

A heart attack occurs when _______ to a part of the heart is blocked.

The blockage is often caused by a buildup of _______ in the coronary arteries.

One of the most common symptoms of a heart attack is _______ or discomfort.

Women may experience _______ symptoms such as unusual fatigue or indigestion-like pain.

A heart attack can lead to what?

Energy drinks can increase the risk of a heart attack by raising _______ and blood pressure.

Stimulants do what to the coronary arteries?

Energy drinks can also increase the risk of what?

What are three harmful chemicals found in cigarette smoke that negatively impact the heart?

How does nicotine affect heart rate and blood pressure?

What does carbon monoxide do to the body's oxygen supply?

How does cigarette smoke damage the lining of arteries?

Why does smoking increase the risk of blood clots?

What are the long-term risks of smoking on heart health?

How does vaping impact blood vessels differently than smoking?

What is atherosclerosis, and how does vaping contribute to it?

What are free radicals, and how do they affect heart and lung tissues?

Why is Vitamin E acetate considered dangerous when inhaled?

What chemical in cigarette smoke binds to hemoglobin and reduces oxygen supply to the body?

Why does smoking increase the risk of atherosclerosis?

What is the primary reason why cigarette smoke has a strong, lingering odor?

Vaping burns tobacco.

What toxic byproducts are released when vape liquids are heated?

Why is the smell of vaping less noticeable than cigarette smoke?

Vaping aerosols leave tar or ash residue.

Aerosols from vaping are harmless.

What does vaping damage?

How does vaping affect arteries?

What condition linked to vaping involves serious lung damage and difficulty breathing?

Why do energy drinks increase the risk of heart attacks?

Why is Vitamin E acetate dangerous?

The amount of nicotine delivered by vaping is less than what is delivered by smoking.