How can you distinguish the anterior and posterior side of the heart?

Located between the left and right ventricles are two additional sulci that are not as deep as the coronary sulcus. The anterior interventricular sulcus is visible on the anterior surface of the heart, whereas the posterior interventricular sulcus is visible on the posterior surface of the heart.

What are the differences between a cow heart and a human heart?

The one main difference between the human and beef heart is size and weight. A human heart weighs between seven and 15 ounces, whereas a cow heart can weight up to five pounds. Both the cow and human heart serve the same purpose and the function of each heart is virtually identical.

How can you determine by looking at the heart which side is the ventral surface?

Locate the tip of the heart or the apex. Only the left ventricle extends all the way to the apex. Place the heart in the dissecting pan so that the front or ventral side is towards you (the major blood vessels are on the top and the apex is down).

Why is the cow heart used for dissection?

Using a cow/sheep heart, students will observe the major chambers, valves, and vessels of the heart and be able to describe the circulation of blood through the heart to the lungs and back and out to the rest of the body. ( The cow heart is used because it is very similar to the human heart in structure, size, & function.)

What is the cross section of a cow’s heart?

This photo shows the adult cow heart cut in cross section through the ventricles, with the smaller right ventricle at top and the larger left ventricle at the bottom. The two are separated by the interventricular septum, and this example shows that the left ventricle’s walls are much thicker (and stronger).

What kind of circulation does a cow have?

Cow Heart Dissection. Mammals have four-chambered hearts and double circulation. The heart of a bird or mammal has two atria and two completely separated ventricles. The double-loop circulation is similar to amphibians and reptiles, but the oxygen-rich blood is completely separated from oxygen-poor blood.

What do you need to know about dissecting cow’s eye?

That’s the sound of the scalpel crunching through layers of clear tissue. The cow’s cornea has many layers to make it thick and strong. When the cow is grazing, blades of grass may poke the cow’s eye— but the cornea protects the inner eye. The next step is to pull out the iris.