Heart Anatomy and Function Assessment

Miss Gilzo provides a detailed tour of a deer heart, starting with the exterior, identifying key structures like the atria, ventricles, and coronary artery. She explains the protective membranes and major blood vessels. The dissection reveals the heart's interior, highlighting the septum, valves, and chordae tendineae. The video concludes with an explanation of the heart's function, emphasizing the differences in wall thickness between the ventricles and atria, and the role of the myocardium and papillary muscles in blood flow.

What are the thin, flappy structures on the outside of the heart that resemble ear flaps?

• Papillary muscles

• Coronary arteries

• Atria

• Ventricles

Which membrane is responsible for protecting the heart?

• Myocardium

• Endocardium

• Epicardium

• Pericardial sac

Which blood vessel carries oxygenated blood to the heart muscle itself?

• Aorta

• Superior vena cava

• Pulmonary artery

• Coronary artery

What is the function of the aorta in the circulatory system?

• Connects the atria to the ventricles

• Supplies blood to the heart muscle

• Carries oxygenated blood to the entire body

• Carries deoxygenated blood to the lungs

What is the purpose of making a coronal slice of the heart?

• To examine the external surface

• To measure the heart's weight

• To view the internal structures

• To remove the pericardial sac

What is the texture of the heart's endothelium?

• Rigid and hard

• Rough and thick

• Smooth and slippery

• Flappy and thin

What is the role of the atrioventricular valves?

• To supply oxygen to the heart

• To prevent backflow of blood

• To pump blood to the lungs

• To connect the ventricles

What are the chordae tendineae?

• Membranes that protect the heart

• Vessels that carry blood

• Tendons that support valves

• Muscles that pump blood

Why is the left ventricle wall thicker than the right?

• It pumps blood to the lungs

• It receives blood from the atria

• It pumps blood to the entire body

• It stores oxygenated blood

What is the function of papillary muscles?

• To protect the heart from damage

• To anchor the chordae tendineae

• To open the atrioventricular valves

• To pump blood into the aorta