Fetal Pig Dissection

 Fetal This halloween Dissection Dissertation

I. Fetal Pig Dissection

II. Goal

Sus scrofa, or the household pig is a member of the class Mammalia and the order Artiodactyla. As we as humans are usually a member of sophistication Mammalia, we certainly have a good deal in accordance biologically with pigs, even though we might unlike to think thus. Since we now have a good deal in accordance, it is very ideal for us to analyze these pets both anatomically and physiologically. We do this when we test out medicines on pigs, excellent surgical procedures on pigs, as well as when we used to use this halloween valves intended for replacements in human hearts. Thus the pig is known as a first-rate example of a mammal and the purpose of this laboratory is to understand the specific similarities between the this halloween and themselves as humans. To accomplish this we are dissecting and identifying parts in a number of different systems: external features, the skeleton, muscle, internal organs, the respiratory system, the digestive system, the circulatory program, the urinary system, the reproductive system, and the nervous system. III. Materials and Procedure

Materials

Fetal Pig

Dissecting tray

Dissecting protect

String

Hand protection

Apron

Scalpel

Dissecting scissors

Probe

Forceps

Formaldehyde

Paper-towels

Garbage tote

Procedure

External Features

1 . Examine the exterior of the this halloween

2 . Measure the pig from your snout towards the base of the tail and use the graph and or chart in the manual to determine its approximate age group. 3. Locate the snout, mouth, eyes, pinnae, teats, umbilical blend, and rectum 4. Study legs and feet and examine/explore the way the pig walks 5. Identify the love-making of your this halloween (females have genital sopa while men will have a scrotum). Skeletal System

1 . Locate the axial skeletal system (vertebal line, ribs, sternum, skull). 2 . Examine the vertebral steering column paying close attention to the inter-vertebral discs, neural mid-foot, neural canal, and transverse processes. several. Identify five types of vertebrae (cervical, lumbar, thoracic, sacral, caudal). 4. Look at the head and determine the 5 types of the teeth

5. Locate the sternum and ribs

6. Take a look at the appendicular skeleton (pectoral and pelvic girdles, forelimbs) 7. Discover the scapula

8. Determine humerus, radius, ulna, carpals, metacarpals, and phalanges being unfaithful. Identify 3 of the bones in the pelvis

twelve. Identify femur, patella, tibia, fibula, tarsals, metatarsals, and phalanges Muscle System

1 ) Carefully take away the skin from the pig to show the buff system by following the cutting sequence chosen in the manual 2 . Identify: pectoralis major and minor, trapezius, latissimus dorsi, biceps, triceps, brachialis, masseter, brachiocephalicus, splenius, external oblique, internal oblique, transverse abdominis, rectus abdominis, gluteus medius, biceps femoris, rectus femoris, gastrocnemius, soleus, sartorius, gracilus, adductor magnus, peroneus longus, and peroneus brevis. Interior Anatomy

1 ) Slice more deeply along the midventral line reducing through the muscle mass 2 . Take away and identify thymus and thyroid

three or more. Cut throughout the rib crate

Respiratory System

1 . Identify the trachea, esophagus, lungs, and diaphragm

2 . Open up the lungs and identify bronchi, bronchioles, and alveoli Gastrointestinal tract

1 . Slice open the mouth and discover teeth, hard plate, soft plate, tongue, and epiglottis 2 . Take away and Discover the hard working liver noting the 4 locations

3. Discover: gall bladder, bile duct, stomach (remove), pancreas, spleen organ, small intestinal tract, large intestine, cecum- make sure to distinguish between the parts of the intestines. Circulatory System

1 ) Identify the heart and pericardium remembering the 4 chambers and trace blood flow making use of the manual as a guide 2 . Identify: tricuspid valve, bicuspid valve, pulmonary semilunar valve, aortic semilunar valve, interatrial septum, ductus arteriosus. 3. Examine the network of ateries and veins noting specifically difficulties ones classified by the handout. Urinary Program

1 . Slice open the low abdomen to expose this system

installment payments on your Identify: kidney (noting 3 of the regions), adrenal glands (if possible), urinary...


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