Question | Answer |
toward the head | anterior (Cranial) |
toward the tail | posterior (Caudal) |
toward the backbone | Dorsal (Superior) |
toward the belly | Ventral (Inferior) |
toward the side | lateral |
toward the mid line | Medial |
lying near the point of reference | Proximal |
lying further from the point of reference | Distal |
perpendicular to the long axis of the body | Traverse (Cross section) |
a longitudinal section separating the body into right and left sides | Sagittal |
a longitudinal section dividing the specimen into dorsal and ventral parts | Frontal (Coronal) |
Umbilical Cord | identifies the animal as a fetus; extends from mid-ventral abdominal surface to the placenta; functions in procurement for food and oxygen from the mother, and movement of wastes |
Umbilical Artery | red |
Umbilical Vein | blue dye |
anus | terminal opening of the digestive tract, located just ventral to the base of the tail and in both males and females |
paper-thin covering upon the fetal pig's entire body | periderm |
female; external opening for both urinary wastes and the reproductive or genital system | urogenital papilla |
small fleshy conical prejection ventral to the anus | urogenital papilla |
testes lie in the | scrotum |
double pouch ventral to the tail. enlarged; visible | scrotum |
mid-ventral surface, posterior to (below) the umbilical cord; opening of the penis | urogenital opening |
penis is internal | detected under skin by pressing finger tip along the mid-ventral surface |
possessed by both males and females | mammary papillae |
become the nipples | mammary papillae |
area between the lips and the teeth | vestibule |
elongated muscular structure is readily visible upon the floor of the mouth | tongue |
upon the upper jaw | teeth |
dental formula of fetal pig | 1 3/3, C 1/1, P 4/4, M 0/0 |
adult pig formula | 1 3/3, C 1/1, P 4/4, M 3/3 |
adult human | 1 2/2, C 1/1, P 2/2, M 3/3 |
large, broad grinding teeth have not erupted | molars |
omnivores | plant and animals |
cat, dog | carnivorous |
horse, cows | herbivores |
structure forms the roof of the mouth; paration separates the oral from nasal cavity | palate |
bony anterior portion of the palate; | hard |
series of transverse ridges, cross the roof of the mouth | palatine rugae |
posterior continuation of the palate; muscular structure with bony support; divides the orpharynx from nasopharynx | soft |
hangs down from its center posteriorly | uvula |
cone-shaped slap of cartilage located at top of the larynx; protects glottis | epiglottis |
tube; windpipe, forms two bronchi enter lungs | trachea |
muscular tube,located dorsal to the trachea known as gullet, collapsed in comparison to trachea | esophagus |