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
This structure lies on the floor of the mouth, between the lower jaws. Location of taste buds.
Tongue
These are the small projections on the tongue, They are particularly large on the anterior margins and the base of the tongue. Aid in food manipulation.
Papillae of the tongue
This is the region of the throat where the oral and nasal cavities join
Pharynx
This structure is a flap of skin which covers the glottis. It serves to separate the esophagus from the trachea and prevent food or liquid from entering the trachea.
Epiglottis
This is the hole that is the opening of the trachea. It is covered by the epiglottis.
Glottis
This tube is commonly called the windpipe. It is a tube extending from the larynx in the throat to the lungs.
Trachea
This structure is commonly called the voice box. It connects to the glottis anteriorly, and the trachea posteriorly. Contains the vocal chords..
Larynx
These are the large organs that function in gas exchange. Lie on the lateral sides of heart.
Lungs
This is a part of the lung. Commonly known as the lung root and is the only part of the lung attached to the body.
Hilus
This is the skeletal muscle located between the lungs and the liver, It is the primary muscle responsible for breathing
Diaphragm
The tube connecting the pharynx to the stomach,
Esophagus
This digestive organ lies posterior to the liver
Stomach
A sheet of connective tissue which attaches to and anchors the inside convex curve of the stomach.
Lesser omentum
A sheet of connective tissue which attaches to and anchors the outside concave curve of the stomach
Greater omentum
A doughnut like smooth muscle, found at the posterior end of the stomach. Separates the stomach from the duodenum.
Pyloric sphincter muscle
This structure is a sac containing green bile, located underneath and attached to the middle lobe of the liver.
Gall bladder
The duct which transports bile to the duo duodenum.
Common bile duct
This is the largest gland in the body, located between the stomach and diaphragm. Reddish brown color.
Liver
This organ is a long, flat,finger like projection to the right of the stomach. Functions to store blood. Dark red to purplish in color
Spleen
An organ which has a right and left lobe, and produces digestive enzymes. Right lobe is beside the pyloric sphincter, at base of the stomach
Pancreas
The anterior portion of the small intestine, just posterior to the stomach
Duodenum
The portion of the digestive system between the stomach and the large intestine.
Small Intestine
This is the sheet of connective tissue attached to the intestines.
Mesentery
This structure is a finger like projection of the large intestine at the junction of the large and small intestines.
Cecum
The intestine posterior to the cecum.
Large intestine
The most posterior portion of the large intestines that descends along and ventral to the vertebral column
Colon
The muscular region at the base of the descending colon just anterior to the anus
Rectum
