Heart, Lungs & Diaphragm Review

Left Ventricle = Pumps oxygenated blood to the entire body Mitral Valve = Prevents backflow into the left atrium SA Node = Initiates the heartbeat Pulmonary Veins = Receives oxygenated blood from the lungs Aorta = Main artery leaving the heart Tricuspid Valve = Prevents backflow into the right atrium Pulmonary Artery = Carries oxygen-poor blood to the lungs Right Atrium = Receives oxygen-poor blood from the body Left Atrium = Receives oxygenated blood from the lungs Right Ventricle = Pumps oxygen-poor blood to the lungs

lungs, oxygen, carbon dioxide

diaphragm

<p>inhalation, expand</p> Signup and view all the answers

<p>exhalation, contract</p> Signup and view all the answers

<p>alveoli</p> Signup and view all the answers

<p>rib cage</p> Signup and view all the answers

<p>expand</p> Signup and view all the answers

<p>rib cage</p> Signup and view all the answers

<p>inhalation, exhalation</p> Signup and view all the answers

<p>oxygen, carbon dioxide</p> Signup and view all the answers

<p>The SA node is commonly referred to as the pacemaker of the heart because it generates the electrical impulses that regulate the heartbeat.</p> Signup and view all the answers

<p>It is located in the right atrium of the heart.</p> Signup and view all the answers

<p>The SA node generates electrical impulses.</p> Signup and view all the answers

<p>After generating an impulse, the electrical signal first spreads through the atria.</p> Signup and view all the answers

<p>The atria contract when they receive the electrical impulse from the SA node.</p> Signup and view all the answers

<p>After the right atria contract, the electrical signal travels to the AV node.</p> Signup and view all the answers

<p>The AV node delays the signal to ensure the ventricles fill with blood before contracting.</p> Signup and view all the answers

<p>The ventricles contract after receiving the electrical impulse.</p> Signup and view all the answers

<p>The SA node regulates heart rate by adjusting the rate of electrical impulse generation.</p> Signup and view all the answers

<p>If the SA node does not function properly, it can lead to arrhythmias, affecting the heart's ability to pump blood effectively.</p> Signup and view all the answers

<p>blood flow</p> Signup and view all the answers

<p>plaque</p> Signup and view all the answers

<p>chest pain</p> Signup and view all the answers

<p>atypical</p> Signup and view all the answers

<p>death</p> Signup and view all the answers

<p>heart rate</p> Signup and view all the answers

<p>narrow</p> Signup and view all the answers

<p>blood clots</p> Signup and view all the answers

<p>Nicotine, carbon monoxide, and tar are three harmful chemicals found in cigarette smoke that negatively impact the heart.</p> Signup and view all the answers

<p>Nicotine affects the heart rate and blood pressure by raising both, causing the heart to work harder.</p> Signup and view all the answers

<p>Carbon monoxide reduces the oxygen supply to the body by binding to hemoglobin in the blood.</p> Signup and view all the answers

<p>Cigarette smoke damages the lining of arteries by making them stiff and less elastic, promoting plaque buildup.</p> Signup and view all the answers

<p>Smoking increases the risk of blood clots, which can block arteries and lead to heart attacks or strokes.</p> Signup and view all the answers

<p>Long-term risks of smoking on heart health include increased risk of heart attacks, strokes, and chronic cardiovascular diseases.</p> Signup and view all the answers

<p>Vaping impacts blood vessels by damaging the inner lining, which makes them prone to atherosclerosis.</p> Signup and view all the answers

<p>Atherosclerosis is a condition where plaque builds up inside the arteries, and vaping contributes to it by damaging blood vessels and promoting plaque buildup.</p> Signup and view all the answers

<p>Free radicals are unstable molecules that can damage cells and tissues, and vaping increases their production.</p> Signup and view all the answers

<p>Vitamin E acetate is considered dangerous when inhaled because it is associated with severe lung injury known as EVALI (E-cigarette or Vaping-Associated Lung Injury).</p> Signup and view all the answers

<p>Carbon monoxide</p> Signup and view all the answers

<p>Causes plaque buildup and artery damage</p> Signup and view all the answers

<p>Tar and combustion byproducts.</p> Signup and view all the answers

<p>Vaping doesn't burn tobacco.</p> Signup and view all the answers

<p>Formaldehyde and acrolein.</p> Signup and view all the answers

<p>No combustion means less odor</p> Signup and view all the answers

<p>No tar or ash residue.</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Damage to blood vessels and heart tissue</p> Signup and view all the answers

<p>Weakens arteries and increases inflammation</p> Signup and view all the answers

<p>EVALI</p> Signup and view all the answers

<p>Raise heart rate and blood pressure</p> Signup and view all the answers

<p>Toxic when inhaled</p> Signup and view all the answers

<p>Vaping delivers more nicotine</p> Signup and view all the answers

Pumps oxygenated blood to the entire body.

Prevents backflow into the left atrium.

The pacemaker of the heart, initiates the heartbeat.

Carries oxygenated blood from the lungs to the heart.

Main artery leaving the heart, carries blood to the body.

Prevents backflow into the right atrium.

Carries oxygen-poor blood to the lungs.

Receives oxygen-poor blood from the body.

Receives oxygenated blood from the lungs.

Pumps oxygen-poor blood to the lungs.

Tiny air sacs in the lungs for gas exchange.

Muscle below the lungs crucial for breathing.

Process of taking air into the lungs.

Process of expelling air out of the lungs.

Waste gas released during breathing, expelled from the lungs.

Occurs when blood flow to a part of the heart is blocked.

A harmful chemical in cigarettes affecting heart rate and blood pressure.

Unstable molecules that damage cells and tissues.

Plaque buildup inside arteries reducing blood flow.

Can increase heart attack risk by raising heart rate and blood pressure.

Substance dangerous when inhaled, linked to severe lung injuries.

Abnormal heart rhythm often caused by SA node dysfunction.

Delays electrical impulse to ensure ventricles fill before contracting.

Buildup in arteries that can block blood flow.

Can block arteries, leading to serious heart conditions.

Organs that facilitate gas exchange, absorbing oxygen and releasing carbon dioxide.

Supports the lungs and helps in breathing.

Long-term health issues affecting the heart's function.

Essential gas absorbed by the lungs and used by the body.

Body's response related to arterial damage from smoking or vaping.