FETAL PIG DISSECTION - AP BIOLOGY
Set up a piece of paper to write down your dissection information as you go. Please follow the lettering system of the directions below in writing down your information. You will be doing all the written information for each section before you do the dissection part.
I.Determining Age of Fetus
A.Follow the directions on page 1 of the dissection manual. (No need to write here)
B.Measure the length of the fetus in millimeters. (Write under section B on your paper)
C.Convert that length measurement to fetal age (in # of days). Write the age down on your dissection paper.
- Length Of Fetus
cm / mm / Approximate age (days)
1.1 / 21
1.7 / 35
2.8 / 49
4.0 / 56
22.0 / 100
30.0 / Full Term 112-115
- The fetal pig assigned to you measures ______cm (______mm) in mength. It seems to be approximately ______days old.
II.Anatomical Terminology (p. 3)
A.Directions or Positions (Define each term on page 3 = 8 terms) (# all of them as you proceed)
B.Planes or Sections (Define each term = 3 terms)
C.Draw a pig labeled with the directional terms
III.External Features (p. 5 & 6)
A.Follow the directions on pages 5 & 6 of manual.
B.Locate in the pig and define all boldfaced and italicized terms on these pages
1. Appendages (4 terms)
2. Head (10 terms)
3. Trunk (9 terms)
IV.Male and Female Structures (p. 9)
**** You will need to look at both a male and female pig to see all parts.****
A.Locate in the pig and define the two structures unique to the female pig.
B.Locate in the pig and define the four structures unique to the male pig.
C.Locate and define the structure possessed by both sexes.
1.How many pairs of these organs are present on your specimen?
2. Complete self quiz on page 16. Answers must be typed.
**** Read General Dissection Hints on p. 18 now ****
V. Muscular System (p. 19)
A.Actions of Muscles. (Define each term = 8 terms) (# them as you go)
B. Follow the directions on p. 20 for skinning the pig. (See p. 22 picture)
Define: 1. cutaneous maximus 2. platysma
C.Follow the directions on p. 23 - 25 of the lab manual.
D. Locate in the pig and define in the pig all the boldfaced superficial muscles (ventral view) in each of the following regions:
1. Thoracic Muscles (3 muscles)
2. Abdominal Muscles (5 muscles)
3. Thigh (2 muscles)
4. Shoulder and Neck (7 muscles)
E.Follow the directions on p. 29 - 31 of the lab manual.
F.Locatein the pig and define in the pig all the boldfaced superficial muscles (lateral view) in each of the following regions:
1. Shoulder Area (4 muscles)
2. Rib Cage Area (3 muscles)
3. Forelimb (7 muscle parts)
4. Hip and Thigh (7 muscles)
5. Lower Hindleg (5 muscles)
G.Follow the directions on p. 29 - 31 of the lab manual.
H.Locatein the pig and define in the pig all the boldfaced superficial muscles (dorsal view) in each of the following regions:
1. Neck and Shoulder (5 muscles)
I. Complete self quiz on page 48. Answers must be typed.
VI.Salivary Glands (p. 50)
A.Follow the directions on p. 50 to expose the salivary glands. Locate in the pig and define each term below according to its location:
1. Parotid gland
2. Submaxillary gland
3. Sublingual gland
VII.Oral Cavity (p. 52)
A.Following directions on p. 52 to open the mouth.
B.Locate in the pig and define each of the bold-faced terms (=9 terms)
C. Complete self quiz on page 56. Answers must be typed.
VIII. Abdominal Cavity (p. 58)
A.Follow the directions on p. 58 (also picture on p. 61) to open the abdomen.
B.Locate in the pig and define all bold-faced terms on p. 58 to 60. (= 10 terms) Use the pictures that are on pages 62-64.
**** Do not include the reproductive structures.****
C. Complete self quiz on page 66. Answers must be typed.
IX. Thoracic Cavity (p. 68)
A.Following the directions on p. 68 to open the thoracic cavity.
B.Locate in the pig and define all bold-faced terms on p. 68 & 69. (= 12 terms)
C. Complete self quiz on page 71. Answers must be typed.
X.Urogenital System (p. 105)
****DO NOT REMOVE liver, spleen, stomach & intestine now ****
Just loosen mesentery tissue and push organs to side to view underlying ones.
A.Find one kidney.
B.Cut one kidney in half and locate in the pig and define each bold-faced terms on p. 105 (= 6 terms)
- Draw and label a diagram of a kidney.
XI.Genital System (Female) (p. 106)
**** If you have a female pig do this section now. If you have a male pig, skip to section XI.
A.Locate in pig and define each boldfaced term on p. 106 (= 7 terms)
B.Exchange pigs with another group to look at a male pig.
XI.Male Urogenital System (p. 108)
A.Locate in pig and define all terms on p. 108 & 109 (= 11 words)
B.If you haven’t looked at a female pig yet, exchange pigs with another group to look at the female pig.
C.Complete self quiz on page 111. Answers must be typed.
You are finished with the dissection now.
Go back and study your dissected fetal pig.
Practical exam is ______.
You will need to know the names of parts of the pig.