Sheep Heart Dissection Flashcards
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Questions and Answers

What is the left subclavian artery?

A major artery that branches off from the aorta and supplies blood to the left arm.

What is the arch of aorta?

The curved portion of the aorta that gives rise to the major arteries supplying the head, neck, and arms.

What is the pulmonary trunk?

The large vessel that carries deoxygenated blood from the right ventricle to the lungs.

What is the left atrium?

<p>The chamber of the heart that receives oxygenated blood from the lungs.</p> Signup and view all the answers

What is the anterior interventricular sulcus?

<p>The groove on the heart's surface that separates the left and right ventricles anteriorly.</p> Signup and view all the answers

What is the left ventricle?

<p>The chamber of the heart that pumps oxygenated blood to the rest of the body.</p> Signup and view all the answers

What is the apex?

<p>The lowest point of the heart formed by the tip of the left ventricle.</p> Signup and view all the answers

What is the right ventricle?

<p>The chamber of the heart that pumps deoxygenated blood to the lungs.</p> Signup and view all the answers

What is the right atrium?

<p>The chamber of the heart that receives deoxygenated blood from the body.</p> Signup and view all the answers

What is the superior vena cava?

<p>A large vein that carries deoxygenated blood from the upper body to the right atrium.</p> Signup and view all the answers

What is the right brachiocephalic trunk?

<p>The artery that branches from the aorta and supplies blood to the right arm and the head.</p> Signup and view all the answers

What is the left atrium?

<p>The chamber of the heart that receives oxygenated blood from the lungs.</p> Signup and view all the answers

What is the posterior interventricular sulcus?

<p>The groove on the heart's surface that separates the left and right ventricles posteriorly.</p> Signup and view all the answers

What is the left ventricle?

<p>The chamber of the heart that pumps oxygenated blood to the entire body.</p> Signup and view all the answers

What is the apex?

<p>The tip of the heart formed primarily by the left ventricle.</p> Signup and view all the answers

What is the right ventricle?

<p>The chamber of the heart that pumps deoxygenated blood to the lungs.</p> Signup and view all the answers

What is the right atrium?

<p>The upper right chamber of the heart that receives deoxygenated blood from the body.</p> Signup and view all the answers

What is the wall of the right atrium?

<p>The muscular structure that forms the boundary of the right atrium.</p> Signup and view all the answers

What is the left tricuspid valve?

<p>The heart valve between the left atrium and left ventricle.</p> Signup and view all the answers

What is the right ventricle?

<p>The chamber of the heart that pumps deoxygenated blood to the lungs.</p> Signup and view all the answers

What is the wall of the right ventricle?

<p>The muscular structure that forms the boundary of the right ventricle.</p> Signup and view all the answers

What is the interventricular septum?

<p>The muscular wall that separates the left and right ventricles.</p> Signup and view all the answers

What is the apex?

<p>The tip of the heart where the ventricles converge.</p> Signup and view all the answers

What is the papillary muscle?

<p>Muscle located in the ventricles that anchor the heart valves.</p> Signup and view all the answers

What is the left ventricle?

<p>The chamber of the heart that pumps oxygenated blood to the body.</p> Signup and view all the answers

What is the wall of the left ventricle?

<p>The muscular structure that forms the boundary of the left ventricle.</p> Signup and view all the answers

What is the right bicuspid valve?

<p>The heart valve between the right atrium and right ventricle.</p> Signup and view all the answers

What is the left atrium?

<p>The chamber of the heart that collects oxygenated blood from the lungs.</p> Signup and view all the answers

What is the wall of the left atrium?

<p>The muscular structure that forms the boundary of the left atrium.</p> Signup and view all the answers

What is the aortic semilunar valve?

<p>The valve located at the base of the aorta that prevents backflow into the left ventricle.</p> Signup and view all the answers

What is the aorta?

<p>The largest artery in the body that carries oxygenated blood from the heart.</p> Signup and view all the answers

What is the superior vena cava?

<p>A major vein that brings deoxygenated blood from the upper body to the right atrium.</p> Signup and view all the answers

What are the pulmonary arteries?

<p>The vessels that carry deoxygenated blood from the right ventricle to the lungs.</p> Signup and view all the answers

Study Notes

Sheep Heart Dissection Labels

  • Left Subclavian Artery: Major artery supplying blood to the left arm and parts of the chest.
  • Arch of Aorta: The curved portion of the aorta that gives rise to major arteries supplying the upper body.
  • Pulmonary Trunk: The vessel carrying deoxygenated blood from the right ventricle to the lungs for oxygenation.
  • Left Atrium: Chamber of the heart that receives oxygenated blood from the lungs via the pulmonary veins.
  • Anterior Interventricular Sulcus: A groove marking the boundary between the left and right ventricles on the heart's surface.
  • Left Ventricle: The heart's chamber responsible for pumping oxygenated blood to the body; has thick muscular walls.
  • Apex: The pointed end of the heart, directed downward and to the left, where the heart's greatest pressure occurs.
  • Right Ventricle: Chamber of the heart that pumps deoxygenated blood to the lungs through the pulmonary trunk.
  • Right Atrium: Receives deoxygenated blood from the body via the superior and inferior vena cavae.
  • Superior Vena Cava: Large vein that channels deoxygenated blood from the upper body to the right atrium.
  • Right Brachiocephalic Trunk: Artery that branches into the right common carotid artery and right subclavian artery.
  • Left Atria: Receives oxygenated blood from the pulmonary veins; important for circulation.
  • Posterior Interventricular Sulcus: Groove at the back of the heart that indicates the division between the ventricles.
  • Wall of Right Ventricle: Thinner than the left ventricle as it only needs to pump blood to the lungs.
  • Intraventricular Septum: Thick wall separating the left and right ventricles, essential for maintaining blood flow.
  • Papillary Muscle: Muscles within the ventricles that anchor heart valves using chordae tendineae to prevent backflow.
  • Wall of Left Ventricle: Thick muscle layer necessary for pumping blood with high force to the body.
  • Right Bicuspid Valve: Also known as the tricuspid valve, it prevents backflow from the right ventricle to the right atrium.
  • Wall of Left Atrium: Thinner than ventricle walls, but still muscular enough to help push blood into the ventricle.
  • Aortic Semilunar Valve: Valve preventing backflow from the aorta into the left ventricle post-contraction.
  • Aorta: The main artery that carries oxygenated blood away from the heart to the body.
  • Pulmonary Arteries: Vessels that carry deoxygenated blood from the right ventricle to the lungs for gas exchange.

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Description

This quiz features flashcards designed to help you label the various parts of a sheep heart during dissection. Test your knowledge of anatomical terms and identify key structures such as the left atrium, aorta, and pulmonary trunk. Perfect for biology students and dissection enthusiasts.

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