What is happening to the valves in ventricular systole?

1. Tell me the flow of blood starting with the right atrium and ending and the vena cava (include valves) 2. What is happening to the valves in ventricular systole? What about atrial systole? 3. How do you measure blood pressure? NOTE: BELOW IS WHAT’S EXPECTED IN DISSECTING THE SHEEP HEART; I included this just for you to read alone. Sheep hearts are readily available and share structural and functional characteristics with human hearts. In this activity, you will explore the anatomy to identify major structural features. Materials Sheep heart Dissecting tools Dissecting tray Face Mask Gloves Apron Bench coat pad Procedure 1. Examine the anterior surface of the heart. Identify the following structures:  Pericardium  Epicardium  Base  Apex  Right auricle  Left auricle  Right ventricle  Left Ventricle  Pulmonary Trunk 2. Examine the posterior surface of the heart. Identify the following structures:  Coronary sulcus  Left auricle  Left ventricle  Right auricle  Right ventricle 3. Insert a blunt probe into the collapsed superior vena cava and into the right atrium. Find the opening for the inferior vena cava and push the probe into this vessel. 4. Make a coronal cut of the sheep heart with a scalpel. Start at the apex and cut toward the base, slicing through both auricles but not all the way through the base (do not completely separate the two halves). 5. Identify the following structures: myocardium, endocardium, right atrium, right auricle, pectinate muscle, opening of superior and inferior vena cava, opening of the coronary sinus, tricuspid valve, right ventricle, chordae tendineae, papillary muscles, pulmonary semilunar valve. 6. Insert a blunt probe into the right atrium and find the opening of the coronary sinus (this will be inferior to the opening of the inferior vena cava). Insert the probe into this region, and observe its movement. 7. While still in the right atrium, use the blunt probe to explore the pulmonary trunk, pushing the probe to the superior end of the vessel. Remove the probe and make a longitudinal incision across the pulmonary trunk with a scalpel. This will expose the pulmonary semilunar valve. 8. Identify the following structures on the left side of the heart: left atrium, left auricle, bicuspid valve, left ventricle, aortic semilunar valve, aorta. Note if there are chordae tendineae or papillary muscles on the valves of the heart. 9. Identify the openings to the right and left coronary arteries just anterior to the flaps of the aortic valve. RUBERICS: This criterion is linked to a Learning OutcomeAbstract Provides a clear and concise 1-paragraph abstract which summarizes the purpose, methods, results, and key This criterion is linked to a Learning Outcome Introduction: Clearly states the purpose of the lab. Provides sufficient background on the topic and relates lab activity to course topics. Includes hypothesis. This criterion is linked to a Learning Outcome Methods Describes procedures outlining the steps of the experiment with enough detail that someone could perform the experiment. Includes description of equipment used, steps taken, timing, etc. 5 to >4.0 pts This criterion is linked to a Learning Outcome Results Reports data and observations from the experiment. Results may be presented in a variety of formats to suit the material: written narrative, graphs, tables, dissection photos, etc. Includes titles, labels, units, scaling, captions, etc. This criterion is linked to a Learning Outcome Discussion Explains how/why the results relate to course concepts. Indicates if the hypothesis was correct (why or why not?), addresses any questions, notes any errors or inconsistencies, includes potential topics/questions for future investigation This criterion is linked to a Learning Outcome Formatting, Spelling, Grammar Follows report template, including title page, numbering, and required sections. The report is free of spelling and grammatical errors. Sentence structure is sound and demonstrates clarity of thought. This criterion is linked to a Learning Outcome References Internal citations are included along with reference list at the end. Follows APA formatting style.