Fetal Pig Dissection Terms: Part 1
Be able to identify, locate, and state the function of each structure in the dissected fetal pig. Page references are to our fetal pig dissection manual. Use the dissection videos
and the manual to identify the structures. The manual is the best source for function information.
Part 1: External Anatomy
Function
Appearance or other notes
Anus (p.6, 7)
Indigestible materials areeliminated (or egested) from the body
located on the ventral base of the tail
Genital papilla (p.6, 7, 89; table 7.1 p.87)
serves as a channel for release of the urine of the body
Mammary papilla (p.6, 7)
Scrotum or scrotal sacs (p.6, 7)
develop into the mammary glands and will be used to secrete milk during
lactation for thenewborn young
proceeds the testes
a short projectionthat develops into the clitoris in the adult
female
produces sperm
Umbilical cord (p.6, 7, 72)
carries nutrient and oxygen
near the side of the abdomen
Urogenital opening (p.6, 7)
releases urine and semen
near the caudal and umbilicial cord
Part 1: Cheek Dissection
Function
Appearance or other notes
Parotid gland (p.41-42; table 4.1 p.51)
traces the parotid duct along the masseter muscle
lying ventral to the ear
Masseter muscle (p.27, 42)
involved in chewing
located underside of the head
Facial nerve (p.42, 104; table 8.1)
exits the sull through the stylomastoid foramen
Parotid duct (p.42-43)
carries digestive enzymes
in the mouth
Mandibular gland (p.42-43; Table 4.1 p.51)
helps the paratid gland
near the parotid gland
Sublingual gland (p.41-42; table 4.1 p.51)
clinges towards the mandibular duct along the ventral surface of the jaw
near the surface
We won’t see this in our dissection video and you won’t need
to locate it on the practical exam.
Part 1: Throat Dissection
Function
Appearance or other notes
Tongue papillae (p.43-44)
manipulates food into the mouth
on the lower jaw
Hard palate (p.43)
first palate that allows mamals to eat and breat
next to the foft palate
Soft palate (p.43-44)
completes secondary palate allowed mammals to eat and breath
felshy continuation of the hard palate
Nasopharynx (p.43-44)
leading rostrally to the external nares
caudal to the soft palate
Epiglottis (p.43-44, 80)
helps the pog when it swallows food
thin flap cartilage
Glottis (p.43-44)
an opening into the larynx
in the neck
Esophagus (p.43-44, 50; table 4.1 p.51)
where chemical secretion from the stomach lining further to the digestive
process
next to the stomach
near the anus