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LABORATORY TEN. The Circulatory System: Anatomy. Sheep Heart Dissection. Identify the assigned superficial structures on p174, #3. Make a coronal section Place the heart upside down, apex on the top Find the posterior interventricular suclus and keep it in the middle
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LABORATORY TEN The Circulatory System: Anatomy
Sheep Heart Dissection • Identify the assigned superficial structures on p174, #3. • Make a coronal section • Place the heart upside down, apex on the top • Find the posterior interventricular suclus and keep it in the middle • With a scalpel cut around the apex, towards the auricles, try not to saw • Identify the assigned structures on p175, #4
Major Veins Major Arteries Use right arm and left leg to study the arteries and veins of systemic circuit in limbs; except for great saphenous vein (look on the right leg)
Coronary Circulation(supplies the heart muscle) Coronary sinus: look for a big blue vein at the posterior side
Hepatic Portal Circulation(shunts blood from digestive organs to the liver for final metabolism and detoxification and from liver to the inferior vena cava for return to the heart)
Demonstration Stations • Fig 10.11 & 10.12, p175 & 176: model & microscope slide of cardiac muscle cells • Fig 10.13, p176: microscope slide of blood vessels • Arteries have thicker wall • Veins have collapsed wall