Male Reproductive Tract

Anatomy

• Senger, PL., 2005, Phatways pregnancy

to parturition, Current conceptions Inc.,

Washington

• Schatten, H. Dan Constantinescu, M.,

2007, Comparative reproductive

biology, Blackwell, Iowa

Learning Objectives

• Mampu menjelaskan sistem reproduksi jantan: – Structure – Function

Bull ReproductiveTract

TE=Tail of epididymis

DD=Ductus defernn

A= ampulla

BP= body of prostate

VG=Vesicular gland

P=Prostate

IcM=Ischiocavernosus muscle

CM= Cremaster muscle

RPM=Retractor penis muscle

CP= crus penis

GP=Glans penis

PS=Penile shaft

SC=Spermatic cord

T=testis

UB=Urinaria baldder

Reproductive

Organs of the

Bull

Testis

Bull Testis Tunica Vaginalis

• parietal

• visceral

Tunica Albuginea

Bull Tract

Scrotum

• Thermosensor

• Radiator

• Protective sac

Sweat gland (sympatethic nerve) hypothalamus sweatingto be colled by evaporative heat transfer

Scrotal swaeting and thermal

polypnea pathways in ram

Bull Tract

Cross Section

Longitudinal Section

Scrotal

Cross Section

testicular parenchyma

mediastinum

Testis

Testicular Parenchyma

Mediastinum

Structure of

the Testis

Rete Testis

(within the mediastinum)

Tunica Albuginea

Seminiferous Tubule

The Testis

Mediastinum

Seminiferous

Tubule

Rete Testis

Structure of

the Testis

Rete Testis

(within the mediastinum)

Tunica Albuginea

Seminiferous Tubule

Structure of

the Testis

Vas Efferentia

6-12 tubules

Caput Epididymis

Cauda Epididymis

Corpus

Epididymis

Vas Deferens

Spermatic Cord

• Vasectomy

Structure of

the Testis

Rete Testis

(within the mediastinum)

Tunica Albuginea

Vas Efferentia

6-12 tubules

Caput Epididymis

Cauda Epididymis

Corpus

Epididymis

Seminiferous Tubule

Vas Deferens

Spermatic Cord

• Vasectomy

Pampiniform

Plexus

Testicular

Artery

Spermatic Chord

Pampiniform Plexus • Counter Current Exchange

39°C - 34°C

70 ng T/ml - 4.8 ng T/ml

• Vascular, lymphatic and nerves

• Heat exchanger

• Houses cremaster muscle

Testis Arterial Pulse

Spermatic

Chord

Parietal

Tunica

Vaginalis

Cremaster

Muscle

Vas Deferens

Pampiniform

Plexus

Bull Tract

Tunica Dartos

Contraction of the Tunica Dartos

Tunica Dartos

• Smooth muscle

• Androgen dependent (Testosterone)

Testis

Bull Tract

Gubernaculum

Bull Tract

Pelvic Genitalia

Pelvic Genitalia of the Bull

Pelvic Urethra

Muscle

Bulb of the Penis

Reproductive

Organs of the

Bull

Cowpers

Gland

Caput Epididymis

Cauda Epididymis Testis

Scrotum

Glans

Penis

Bladder

Ampulla

Seminal Vesicles

Prostate Rectum

Vas Deferens

Gubernaculum

Sigmoid

Flexure

Retractor

Penis

Muscle

Cross Section of Bull Penis

Penis Cross Section

Corpus Cavernosum

Corpus Spongiosum

Urethra

Arterial Supply

Glans Penis

Glans Penis

Muscle associated with pelvic

urethra and the penis • Urethralis muscle: striated muscle, suround pelvid

urethra in circular manner, thick, powerfull muscle responsible for movement of semianl plasma and spermatozoa into penile urethra

• Bulbospongiosus muscle: overlap the root of the penis and extends down the caudal and ventral surfaces, also covers bulbourethral glands, to empty the extrapelvic part of the urethra

• Ischiocavernosus muscle: paired, associated with pelvic urethra and the penis, connect the penis to ischial arch