For domestic animals

Only accessory gland present in dog

Prostate gland

Shape of uterus in horse

Cornua are slightly curved or nearly straight (mare uterus)

Shape of uterus in ox

Cornua have a slight spiral twist (cow uterus

Ampullae is well developed in these animals

• Stallion

• Bull

• Ram

Ampullae is absent in this animal

Boar

Seminal Vesicle is pear shaped in this animal

Stallion

Seminal vesicle is lobated in this animal

• Bull

• Ram

• Boar

Accessory sex gland that is especially large in boar

Bulbourethral gland

right kidney is heart-shaped; left if bean shaped; renal papillae fused to form renal crest.

Horse

lobulated; no renal pelvis; minor calyces embrace the renal papillae, lead into major calyces and so into ureter

Ox

bean-shaped; renal papillae fused to form renal crest; renal crest has two projections – dorsal and ventral buttresses.

Sheep

bean-shaped; renal pyramids are fused but their papillae are separate; minor calyces embrace papillae, lead into major calyces and hence into ureters

Pig

bean-shaped; renal pyramids fused into renal crest; renal crest projects into distinct renal pelvis

Dog

These veins are found in the kidneys of cats

Stellate veins are subscapsular renal

long axis of testicle is nearly horizontal.

Horse

long axis of testicle is vertical.

Bull/Ram

long axis is directed upwards and backwards.

Pig

small and oval in shape; long axis is oblique

Dog

accessory glands are complete

Horse

penis has sigmoid flexure behind scrotum; Glans is long and twisted

Ox

urethral process on glans is elongated into vermiform appendage.

Sheep

penis has sigmoid flexure in front of scrotum; no glans

Pig

bulbo-urethral glands and seminal vesicles are absent; only prostate is present; corpus cavernosum penis is ossified anteriorly forming os penis.

Dog

cornua slightly curved, or nearly straight; both dorsal and ventral fornices (arch-like structure) present in vagina

Mare

cornua have slight spiral twist; dorsal fornix only.

Cow

cotyledons are umbilicate.

Ewe

cornua are very long; no fornices.

Sow

cornua are straight and shaped like a Y; cervical canal is at an angle.

Bitch