Lab 11:Fetal Pig Dissection Flashcards
Pigs are born with closed_____
Eyelids
The external ear flap.
Pinna
Exterior openings of the nose used for breathing and the sense of smell.
External nares
The long, stiff hairs on the head, commonly called whiskers. Function is touch
Vibrissae
These are the toes and hooves.
Digits
There are 5 to 5 pairs of these structures present in both sexes, but develop into the mammary glands in only females.
Mammary papilla
Contains the 2 umbilical arteries and one umbilical vein. It serves as the connection between the fetus and the fetal placenta.
Umbilical cord
Female’s external genitalia
Genital papilla
The opening which is the terminal end of the male urogenital tract
Urogenital Opening
A sac of skin beneath the tail containing the male’s testes.
Scrotum
This structure is the terminal opening of the digestive tract
Anus
A large salivary gland which lies posteriorly and ventrally to the masseter muscle
Parotid gland
This salivary gland is small and has an oval shape. It lies partially ventral to the parotid gland, and between the parotid and the angle of the jaw, AKA submaxillary gland.
Mandibular gland
This salivary gland is narrow and flat. It lies beneath the skin, medial to the lower jaw, and alongside the tongue
Sublingual gland
This endocrine gland is large, and elongated. It lies beneath the skin on each side of, and over, the trachea. Hormones stimulate the early development of the immune system.
Thymus gland
This small endocrine gland is darkly colored, and has an oval shape. Lies between the two lobes of the thymus gland, posterior to the larynx, and ventral to the trachea.
Thyroid gland
This is the ridged surface which forms the anterior portion of the roof of the mouth.
Hard palate
This is the smooth surface which forms the posterior portion of the roof of the mouth.
Soft palate