Question

ANATOMY OF THE HEART

Mediastinal Features:

• Right Lung • Left Lung

• Pericardial Sac

1. Explain where in the mediastinum the heart is situated.

Chambers of the Heart:

• Right Atrium • Left Atrium

• Left Ventricle • Interatrial Septum

• Trachea

• Right Ventricle

• Interventricular Septum

  

1. Which chamber would have the thickest muscular wall? Why?

2. Make sure you can recognize the 4 chambers from both an external and internal

view.

Right Atrium:

• Crista Terminalis • Pectinate Muscle

• Tricuspid Valve

1. What is the purpose of the fossa ovalis? Right Ventricle:

• Fossa Ovalis

• Trabeculae Carneae
• Septal Papillary Muscle

• Tricuspid Valve (Ant, • Post, Septal Cusps)

• Anterior Papillary Muscle •

• Septomarginal •

Chordae Tendineae

Posterior Papillary Muscle Pulmonary Valve

Trabeculae/Band
1. What is trabeculae carneae similar to in the atrium?

2. Explain how the tricuspid (AV) valve works to prevent backflow of blood.

Left Atrium:

• Mitral/Bicuspid Valve Left Ventricle:

• Mitral/Bicuspid Valve (Ant & Post Cusps)

• Chordae Tenindeae • Posterior Papillary

• Trabeculae Carneae

• Anterior Papillary Muscle
1. What is the main difference between the size/shape of the right and left ventricle?

Muscle
2. Explain how the aortic (semilunar) valve works to prevent backflow of blood.

Fetal Circulation Remnants:

• Fossa Ovalis • Ligamentum Arteriosum
1. Which one primarily allows blood to bypass the non-functioning lungs in embryo?

Great Vessels of the Heart:

• Aorta • Superior Vena Cava • Inferior Vena Cava
• Pulmonary Trunk • R & L Pulmonary Arteries • 2 R & L Pulmonary Veins

1. Which of these vessels would carry oxygenated blood? Deoxygenated blood?

• Aortic Valve

  

Coronary Arteries & Veins:

• Right Coronary A.

• Left Coronary A.

• Great Cardiac V.

• Coronary Sinus

• Marginal A.
• Circumflex A.
• Middle Cardiac V.
• Atrioventricular Sulcus

• Posterior Interventricular A. • Anterior Interventricular A. • Small Cardiac V.
• Ant. Interventricular Sulcus

• Post. Interventricular Sulcus

1. What is the purpose of the 3 Sulci?

2. Which arteries run sandwiched together with which veins?

ANSWER ALL OF THE ABOVE. PLEASE

Answer 1

Felt great to answer. Good luck!