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Transcript
Section 10 (More prefixes) Brev-: short Counter-: against 3. Uni-: one 4. Mono-: one 5. Bi-: two 6. Bin-: two 7. Di-: two 8. Ter-: three 9. Tri-: three 10. Quadra-: four 11. Tetra-: four 12. Acro-: extremity, limbs 13. Oligo-: few 14. Aud-: ear, hear 1. 2. Blasto-: early, embroyonic Adeno-: gland 17. Angio-: vessel 18. Arthro-: joint 19. Bucc/o-: cheek 20. Cardi/o-: heart 21. Corp-: body 22. Chondr/o-: cartilage 23. Cephal/o: head 24. Cyst/o-: bladder 25. Cyt/o: cell 26. Dent/o-: tooth 27. Dermat/o-: skin 28. Duoden/o-: duodenum 15. 16. Sheep heart dissection Please refer to the large Lab Manual for directions and instructions (exercise 30 in many books) Your goal for today Determine how blood moves through the heart Identify all the valves Understand the difference between right and left sides Begin the dissection which you will finish up tomorrow Heart Dissection Instructions Always wear apron and safety glasses (back of the room) Please refer to the large Lab Manual for directions and instructions (exercise 30; page 306-307) Obtain preserved heart, dissecting tray, instruments, and gloves Please follow directions of the lab sheet and refer to the lab manual if you have any questions Spend significant time studying the outside of your heart Examine valves and pumping before cutting Time to cut The first incision is along the right ventricle and atrium, allowing us to see inside the right side of the heart. The right ventricle can be identified by squeezing the heart, since the myocardium on the right side is much less rigid than that of the left ventricle. This incision allows us to see the tricuspid valve and the right ventricular outflow tract which includes the pulmonary valve. Clean up Rinse your heart and place it in a gallon size bag with your names on it Rinse all tools and dissection pan Pat everything dry Clean off your lab table and push in lab stools Failure to clean up will land you in detention, and you will clean up for 30 minutes after school.