Animal Reproductive Systems
Male Reproductive System
• Major Organs
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Testicles
Epididymis
Scrotum
Vas deferens
Urethra
Seminal Vesicle
Prostate Gland
Cowper’s Gland
Penis
Male Reproductive System
• Sperm
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Male sex cell
Also called spermatozoa
Enter the epididymis
Stored to mautre
• Testosterone
– Male hormone
– Causes appearance & behavior of animals to have masculine
traits
• Scrotum
– Two-lobed sac
– Contains & protects the two testicles
– Regulates the temperature of the testicles
Male Reproductive System
• Vas deferens
– Serves as a transportation tube
– (epididymis  urethra)
• Urethra
– Large muscular canal (urinary bladder  penis)
• Seminal Vesicles
– Open into urethra to produce fluid
• Protects & transports sperm
Male Reproductive System
• Prostate Gland
– Produces semen (mixture of seminal & prostate fluids
& sperm)
• Cowper’s Gland
– Produce fluid that moves down the urethra ahead of
the seminal fluid.
• Penis
– Deposits semen within the female reproductive
system
Male Reproductive System
• Copulation
– Mating
• Sigmoid Flexure & Retractor Muscle
– Extend penis from sheath (fold of skin)
• Glans Penis
– Tip of the penis
– Sensory organ
Female Reproductive System
• Major Organs
– Ovaries
– Oviducts
– Uterus
– Vulva
– Bladder
– Clitoris
– Vagina
Female Reproductive System
• Follicles
– Cavities where ova are produced
• Ova
– Eggs
– Female sex cell
• Oviducts or fallopian tubes
– Two tubes that carry ova from the ovaries to the
uterus
Female Reproductive System
• Infundibulum
– Funnel shaped end of each oviduct nearest to the
ovary
• Zygote
– Fertilized egg
• Uterus
– Y-shaped structure
– Consisting of the body, two uterine horns, & cervix.
Female Reproductive System
• Uterine Horn
– Where pregnancy occurs in most animals
• Parturition
– Birth
• Cervix
– Lower outlet of the uterus
– Gateway between the uterus and the vagina
Female Reproductive System
• Mucosal cells
– Make significant changes as animals goes from one
estrous cycle to another during pregnancy (gestation)
• Vulva
– External opening of the reproductive & urinary
systems
• Labia majora
– Two exterior folds of the vulva
Female Reproductive System
• Labia minora
– Two folds inside the labia majora
• Bladder
– Collects liquid waste (urine)
• Clitoris
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Sensory & erectile organ of the female
Inside the vulva
Same embryonic tissue as the penis
Produces sexual stimulation during copulation
Female Reproductive System
• Vagina
– Female organ of copulation at mating and as the
birth canal at parturition
– Passage between the cervix and the vulva