Male Reproductive System (diFiore and Junqueira)

Testes / Testis

Produces the Male Gametes

Testes / Testis

Secretes Testosterone

Penis

Organ of copulation

Genital Ducts

Collects, stores and conducts spermatozoa from testis

Accessory glands

Secrete seminal fluid

Gland of Littre

Glands that branch off the wall of the Urethra

Testes / Testis

A paired ovoid organs that lie within the scrotal sac

Testes / Testis

Contain spermatogenic stem cells that continuously divide to produce new generations of cells

Male Reproductive System

Consists of a pair of testes, numerous excurrent ducts and different accessory glands that produce a variety of secretions that are added to sperm to form semen

Accessory Glands of Male

Consists of paired seminal vesicles, paired bulbourethral glands and a single prostate gland

Penile Urethra

Serves as a common passageway for urine or semen

Penis

Consists of erectile tissues, the paired dorsal corpora cavernosa and a single ventral corpus spongiosum that expands distally into the glans penis

Tunica vaginalis

Outer layer of the tunica of Testis

Tunica Vasculosa

Inner layer of the tunica of Testis

Tunica Albuginea

Middle layer of the tunica of Testis and it is made of dense fibrous tissue

Spermatogonia

Located beneath the basement membrane of seminiferous tubule, both the Spermatogonia A and Spermatogonia B, in fact both of them are overlying the membrane

Type A Spermatogonia

Large oval nucleus, and it will become the Type B Spermatogonia

Type B Spermatogina

It has spherical nucleus with dispersed heavily stained chromatin masses, and it will become the Primary Spermatocyte

Primary Spermatocyte

It is the largest spermatogenic cell, and it will become the Secondary Spermatocyte

Secondary Spermatocyte

It is spherical or polygonal. Small dark staining nucleus with finely granular chromatin. And it will rapidly undergo 2nd Meiotic Division to become Spermatids

Spermatid

Will arise from the division of the Secondary Spermatocyte

Spermatogenesis

The process of formation of sperm cell from spermatogonium to spermatozoa

Spermiogenesis

Specific to spermatid to spermatozoa

Sperm Cell

It is quiescent in the seminiferous tubules and ducts of the testes or intratesticular ducts

Spermatogonial Phase

It is a stage of spermatogenesis where Spermatogonia A may divide into another Spermatogonia A or it may eventually divide to form Spermatogonia B

Spermatocyte Phase

It is a stage of spermatogenesis where once the Spermatogonia B transforms into a Primary Spermatocyte

Sertoli Cells

It is to support, protect and nourish developing spermatogenic cells

Follicle Stimulating Hormone

Stimulates spermatogenesis

Luteinizing Hormone

Stimulates leydig cells to secrete testosterone

Luteinizing Hormone

It is also called Interstitial Cell Stimulating Hormone

Epididymis

It has a crescent shape structure and has both Intratesticular and Extratesticular portion

Epididymis

Site of temporary storage and maturation of sperm cell

Vas Deferens

A tiny muscular tube in the male reproductive system that carries sperm from the epididymis to the ejaculatory duct

Vas Deferens

Makes it a prime area for male contraception surgery

Ejaculatory Duct

It is formed by the union of the ampulla of the vas deferens - dilated terminal portion

Prostatic Urethra

It is the widest and most dilatable portion of the Male Urethra

Membranous Urethra

It is the shortest segment and least dilatable portion of the Male Urethra

Penile Urethra

Longest segment of male urethra

Seminal Vesicle

A pair of glands found in the male pelvis, which function is to produce many of the constituent ingredients of semen

Seminal Vesicle

Located posterior to the bladder and superior to the prostate gland

Prostate Gland

Largest accessory gland

Transition Zone

It is one of the major zone around the urethra that contains 5% Prostatic volume

Transitional Zone

It is one of the major zone around the urethra that surrounds superior portion of the urethra and it contains Periurethral Mucosal Glands

Central Zone

It is one of the major zone around the urethra that contains 25% of glands tissue

Central Zone

It is one of the major zone around the urethra that contains Periurethral Submucosal Glands with Longer Ducts

Peripheral Zone

It is one of the major zone around the urethra that contains 70% of the organs tissue

Peripheral Zone

It is one of the major zone around the urethra that contains Prostate's Main Glands with Longer ducts

Prostatic Secretion

Also known as Corpora Amylaca and it is calcified concentrations containing Glycoproteins and Keratan Sulfate

Bulbourethral Gland

A pair of small, round, compound Tubuloacinar glands located in the Urogenital diaphragm that empty into the proximal part of penile urethra

Cowpers Gland

Release a clear mucous-like secretion that coats and lubricates the urethra in preparation for the imminent passage of sperm

Tunica Albuginea

A tunica of a penis that binds that three tissues together and forms a capsule around each

Corpora Cavernosa

It contains cavernous spaces lined by endothelium that are continuous with that of the central and helicine arteries

Corpus Spongisum

It contains may elastic fibers and the Penile urethra

Semen

Contains sperm from the testis and secretory products from the epididymis, vas deferens, prostate, seminal vesicles and cowpers gland

Alkaline PH

To neutralize the acid environment of the vaginai

Cryptorchidism

Failure of one or both testes to descend from the abdomen

Hydrocoele

Excessive accumulation of serous fluid in one or both sides of the scrotum

Orchitis

Acute or chronic inflammation of the testis

Erectile Dysfunction

Inability of an adult male to acheive an erection; impotence

Chronic Prostatitis

Common problem that is involve bacteria or infective agents

Benign Prostatic Hypertrophy

It occur mainly in the periurethral mucosal glands and it will leads to compression of the urethra and problems with urination

Prostate Cancer

Cancer of the prostate gland; occurring mainly in gland of the peripheral zone