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FETAL PIG DESIGN: ANATOMY

FETAL PIG DESIGN: ANATOMY. There are two basic kinds of “cutting.”. Sharp dissection – cutting with a scalpel or scissors. What are the advantages and disadvantages? When should we use sharp dissection?

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FETAL PIG DESIGN: ANATOMY

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  1. FETAL PIG DESIGN: ANATOMY

  2. There are two basic kinds of “cutting.” Sharp dissection – cutting with a scalpel or scissors. • What are the advantages and disadvantages? • When should we use sharp dissection? Blunt dissection – separating tissues with a blunt probe, scalpel handle, or fingers. • What are the advantages and disadvantages? • When should we use blunt dissection?

  3. There are two anatomical approaches to dissection • Regional anatomy – dissection to study the “regions” of the body – head and neck, thorax, abdominal cavity, legs, etc. • Systemic anatomy – dissection to study the body system: musculoskeletal, digestive, respiratory, etc. • We will use a hybrid combination of approaches.

  4. Find: Masseter Submandibular salivary gland cheek M SG

  5. Cheek

  6. Some superficial muscles

  7. More superficial muscles

  8. Neck and thorax Find: • Trachea and larynx • Thyroid gland • Thymus • Heart: left and right auricles • Pulmonary artery trunk • Anterior vena cava • Common carotid artery and vagus nerve • Jugular vein

  9. Neck and thorax

  10. Neck and thoracic cavity Find: • Trachea • Thyroid gland • L and R auricles of heart • Pulmonary trunk • Anterior vena cava • Common carotid and vagus nerve

  11. Neck and thoracic cavity

  12. Thoracic cavity Find: • Esophagus • Lung • Diaphragm • Aorta • Intercostal a. and v.

  13. Thoracic cavity

  14. Upper abdominal region

  15. Upper abdominal region Find: • Body and pylorus of stomach • Greater and lesser curvatures of stomach • Gall bladder • Cystic duct • Common bile duct

  16. Find: Liver Spleen Small intestines Spiral colon Rectum Mesentery Kidney Ureter Uterus (horn) Ovary Abdominal cavity

  17. Abdominal cavity

  18. Abdominal cavity Find: • Liver • Umbilical vein • Spleen • Pancreas • Small intestine • Mesentery • Spiral colon • Rectum • Kidney • Ureter

  19. Abdominal cavity

  20. Abdominal viscera Find: Liver Stomach Greater omentum Spleen Small intestines Mesentery Mesenteric lymph nodes Spiral colon

  21. Abdominal cavity: male pig Find: • Liver and spleen • Stomach • Pancreas • Small intestines and mesentery • Spiral colon • Kidney and ureter • Vas deferens

  22. Abdominal cavityMale pig

  23. Abdominal viscera

  24. Female pig(colon retracted) Find: • Small intestine • Cecum • Spiral colon • Kidney and ureters • Horns of uterus • Fallopian tube • Ovaries

  25. Female pig (colon retracted) Think…

  26. Female viscera Find: • Body of uterus • Uterine horns • Fallopian tubes • Ovaries • Bladder • Umbilical artery

  27. Female viscera

  28. Think… The human uterus has a body but no horns. Why does it make biological sense that pigs, dogs, and cats have uteri with two well-developed horns?

  29. Male pig Find: • Kidney and ureter • Rectum • Urinary bladder • Testis • Epididymis • Vas deferens

  30. Male pig

  31. We’re done!

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