Q Because we cannot perform a hands on heart dissection, we are going to watch a video of a pig heart dissection below. Before beginning the video, answer this question: The video instructor states that they have chosen to dissect a pig's heart because its anatomy is similar to that of the human heart. What would you expect to observe in the pig's heart? Hint: focus on the heart's gross anatomy. Watch the video and answer the questions below: Title: Heart Dissection GCSE A Level Biology NEET Practical Skills (Links to an external site.); User: Ava Hearts Biology (Links to an external site.); Duration: 5:22; Added: March 2018 1. How is a pig heart different than a human heart (other than the fact that it came our of a pig)? 2. What is the main blood supply to the heart itself? 3. Which ventricle is thicker? Explain why. 4. What is the function of the chordae tendineae and why are they important? 5. Which vessel exits the left ventricle? 6. Which vessels takes blood from the heart to the lungs? From which chamber does it exit? 7. The instructor in the video neglects to mention the name of some important structures. o For example, the instructor says, "heart valves are incredibly important in maintaining unidirectional flow of blood..." Identify the valves of the heart and indicate which chambers/vessels they separate o She also says, "...maintained by a little bunch of cells..." What anatomical structure is she referring to? 8. On a couple occasions, the instructor refers to two important solutes that are circulated by the blood. What are they and which other organ systems is each most-closely associated with?

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