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Male Reproductive Anatomy - Species Variation
Male Reproductive anatomy
25
Veterinary Medicine
2nd Grade
08/04/2012

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Term
Interspecific Variation
Definition
Huge Variation in Testies size to body size Ration.
Term
Abundance of Cells in the Testis
Definition
Parenchyma is made mainly of Seminiferous Tubues

BOAR = 70%
RAM = 1%
Term
TESTICULAR POSITION
Definition
BOAR= VENTRAL TO THE INGUNAL RING
DOG = MORE CAUDAL BETWEEN THE THIGHS
CAT = PERIANAL SCROTUM
ELEPHANT = INTERNAL ( NO GUBERNACULUM)
Term
TESTIS STRUCTURE VARIATION
Definition
SIMILAR BETWEEN SPECIES

POSTION OF T AND SCROTUM VARIES
LOCATION OF MEDIASTINUM TESTIS VARIES
RELATIVE ABUNDANCE OF DIFFERENT CELLS
RELATIVE SIZE
Term
LOCATION OF MEDIASTINUM TESTIS
Definition
DISPLACED TO SIDE ADJACENT TO EPIDIDYMAL MARGIN IN SOME SPECIES SUCH AS RUMINANTS
Term
SCROTUM HAIR COAT
Definition
DOG - SPARSE
RUMINANT - SPARSE
CAT - VERY VERY HAIRY
Term
EXTERNAL TESTICULAR POSITION
Definition
1 LOWER TEMP FOR SPERMIOGENESIS ( NOT SEEN IN ELEPHANTS)
2 ADAPTION TO JUMPING INTRAABDOMINAL TESTES MAY BE CMPRESSED LEADING TO INADVERTENT EJACULATION.
Term
INTRASPECIFIC TESTES SIZE VARIATION
Definition
IN HUMANS TESTIS VOLUME POSITVE CORRELATED WITH NUMBER OF SPERM
IN BULLS SCROTAL CIRCUMFRANCE SUED AS AN INDICATRO FO SPERM QUALITY.
Term
WHY SUCH SIZE VARTIATION IN SOME SPECIES?
Definition
THOUGHT TO BE IN SPECIES WITH HIGH SPERM COMPETITION SO AS TO HAVE A HIGHER AMOUNT OF SPERM IN ORDER TO WIN COMPETITION.
Term
DUCT SYSTEM VARIATIONS?
Definition
VARIABLE EPIDIDYMUS
-2M(CAT) --> 75M(HORSE)
RELATIVE RELATION BETWEEN PARTS OF THE MALE DUCT SYSTEM SAME SAME.
Term
WHAT ARE THE 4 ACCESORY SEX GLANDS?
Definition
AMPULLARY GLANDS
VESICULAR GLANDS
PROSTATE
BULBOURETHRAL GLANDS
Term
BOAR VESICULAR GLANDS
Definition
ITS OWN DUCTS THAT ENTER INTO THE URETHRA.
LOBULATED SURFACE
VLARGE GLANDS OBSCURING SIGHT OF DUCTUS DEFERENS.
Term
BULL VESICULAR GLAND
Definition
PART OF COMMON EJCAULATORY DUCT.
LOBULATED SURFACE MORE COMPACT STRUCTURE.
Term
STALION VESICULAR GLAND
Definition
FORMS COMMON EJACULATOR DUCT
EJACULATORY DUCT PASSES THROUGH DPROSTATE
SMOOTH SURFACE
RESEMBLE PEAR SHAPED BLADDER
LARGE CENTRAL CAVITY.
Term
AMPULLARY GLANDS
Definition
BRANCHED TUBULOALVEOLAR GLANDS
PSUEDOSTRATIFIED COLUMNAR EPITHELIUM
Term
VESICULAR GLANDS
Definition
COMPOUND TUBULOALVEOLAR GLANDS
GLANDULAR EPITHELIUM ( PSTRAT COLUMN).
SIMPLE CUBOIDAL DUCTS
LIE IN SUBMUCOSE
ARRANGED IN LOBES SURROUNDED Y TRABECULAE
TUNICA MUSCULARIS AND SEROSA SURROUNDS GLANDS.
Term
PROSTATE
Definition
COMPOUND IN BODY.
DIFFUSE IN DISSEMINATE PART.
Term
DESEMINATE PROSTATE
Definition
INDIVIDUAL GLANDS
SUBMUCOS OF URETHERA
Term
PROSTATE BODY
Definition
PAIR OF VARIABLLY FUSED LOBES.
THICK CT CAPSULE
TRABECULAE FORM CAPSULE DIVIDED GLAND INTO LOBULES.
Term
PROSTATE STALLION
Definition
WELL DEFINED BODY
TWO LOBES
CONNECTED BY DORSAL ISTHMUS
ABSENT DISSEMINATE PORTION.
Term
PROSTATE CARNIVORES
Definition
LARGE
WELL DEFINED BODY
DIVIDED INTO 2 LOBES
V REDUCED DISSEMINATE.
Term
BULL AND BOAR PROSTATE
Definition
SMALLE
CAUDO DORSLLY LOCATED
V.EXTENSIVE DISSEMINATE PORTION.
Term
SMALL RUMINANT PROSTATE
Definition
LACK PROSTATE BODY
EXTENSIVE DISSEMINATE PORTION.
Term
BULBOURETHRAL GLAND
Definition
GENERALLY SMALL (EXCEPT PIG)
DORSO-LATERAL TO CAUDAL PART PELVIC U
COMPOUND TUBULAR MUCOUS GLANDS
COLLECTING DUCTS - INTRAGLANDULAR DUCT - BULBOURETHRAL DUCT
OUTER THICK CPASULE SURROUNDED BY BULBOGLANDULARIS M.
Term
BULBOURETHRAL HISTOLOGY
Definition
SIMPLE PSUEDSTRATIFIED COLUMANR EPITHELIM
SURROUNDED BY LOOSE CT
DENSE CT TRABECULAE WITH SOME SM.
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