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Vertebrates are bilaterally_symmetrical, have three distinctive body_regions (head, thorax, and abdomen), are chordates, have well-structured and well-defined organ_systems, possess an endoskeleton, are eucoelomate, and have pectoral and pelvic_appendages.

The fetal_pig is a typical chordate vertebrate mammal. It does, however, have several distinguishing external features in addition to the standard vertebrate mammalian ones. These features include a distinctive snout with nostrils, teats on the abdomen, and expanded ear auricles. Since our specimens are fetal, a section of umbilical_cord is also present.

If the fetal pig is male, you will be able to identify the orifice for the penis just below the umbilical cord. In a fetal pig that is close to birth, you will also be able to see the wrinkled texture of the scrotum near the anus and tail.

If the fetal pig is female genital_papillae will be visible in the anal region near the tail.

The fetal_pig has these internal structures:

(1) a well-developed brain and spinal_cord;

(2) a four-chambered heart and well-structured vessels;

(3) lungs (paired), trachea, larynx, and diaphragm;

(4) endocrine structures, including a thymus and a thyroid;

(5) esophagus, stomach, small_intestine, large_intestine, pancreas, liver, and gall_bladder;

(6) paired kidneys and ureters, a urethra, and a bladder;

(7) a spleen to act as a blood reservoir; and

Male reproductive organs include:

paired testes (each with a scrotum),

two epididymides (sing: epididymis) - each superior (above)  to a  testis,

two seminal_vesicles,

two vas_deferens (ductus_deferens), 

two spermatic_cords,

two   bulbourethral_glandsand

one penis

 

Female organs include:

two ovaries,

two oviducts

one uterus,

two uterine_horns,

one vagina,

one urogenital_sinus, and

several genital_papillae