Fetal Pig Dissection
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Transcript of Fetal Pig Dissection
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Fetal Pig Dissection
Seriously AWESOME dissection site:http://
faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20Laboratory/Fetal%20Pig/Fetal%20Pig.htm
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Virtual Fetal Pig Dissection
• http://www.whitman.edu/content/virtualpig
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Important Systems
• External Anatomy• Muscular
• Circulatory (heart)• Respiratory• Digestive
• Urinary• Reproductive• Skeletal• Nervous (brain)
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DAY 1External Anatomy, Mouth and the Muscular System
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External Anatomy of the Fetal Pig
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Mouth
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Important Muscles (Ventral Pectoral Girdle)
• Masseter • Sternohyoid, Sternomastoid, Sternocephalic• Brachiocephalic• Biceps brachii• Superficial Pectoral• Deep pectoral• Serratus ventralis
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Muscular System (Ventral Pectoral Girdle)
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Important Muscles (Dorsal)
• http://www.jesuitnola.com/upload/biology/ory/fetal_pig_muscle_dissection.htm
• Latissimus dorsi• Trapezius
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Important Muscles of the Leg
• Gluteus medius, gluteus maximus
• Biceps femoris
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Once you have identified the important muscles…
• Read through the lab about the remaining systems
• Make sure you know which incisions you will be making and what you will encounter.
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DAY 2The neck, cardiovascular system
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Fetal Pig Neck and Cardiovascular System
• Larynx• Trachea• Bronchi
• Esophagus
• Thymus and Thyroid Glands
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Heart and Associated Blood Vessels
• Heart:– 2 upper atria– 2 lower ventricles
• Vena Cava (Anterior and Posterior)• Pulmonary Artery • Aorta
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Blood Vessels of the Fetal Pig
• Carotid Artery• Jugular Vein
• Umbilical vein: from placenta to fetus• Umbilical arteries: pelvic region to placenta
• Renal Vein• Renal Artery
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Heart
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After identification of the heart and associated blood vessels…
• Remove the heart
• Dissect the heart (if possible)• Locate the blood vessels• Be sure to identify how blood flows through
the fetal pig heart, chambers of the heart
• Move on to the respiratory system
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Respiratory Structures
• Larynx– With vocal cords
• Trachea• Bronchi• Bronchioles• Lungs
• Diaphragm
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Digestive System• Esophagus• Cardiac sphincter• Stomach• Pyloric sphincter• Small Intestine
– Duodenum– Jejunum– Ileum
• Cecum• Large Intestine (colon)• Rectum• Anus
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Digestive System Accessory Organs
• Liver• Gall bladder• Pancreas
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REMOVE THE INTESTINES (AND THE REST OF THE DIGESTIVE SYSTEM, IF DESIRED)
Now, on to the urinary system!
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DAY 3The urinary system, reproductive system, skeletal system
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Urinary System
• Kidneys– Cortex and medulla– Renal pyramids
• Ureter• Urinary bladder• Urethra • (Adrenal glands)
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Reproductive System: Male
• Testes• Epididymus• Vas deferens• Seminal vesicles • Prostate gland• Bulbourethral
glands• Penis
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Reproductive System: Female
• Ovaries• Uterus and
uterine horns• Vagina
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The Skeletal System
• Skull• Vertebrae• Ribs• Sternum• Scapula• Pelvis
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The Skeletal System
• Upper Limb:– Humerus– Radius– Ulna
• Lower Limb:– Femur– Tibia– Fibula