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Male Genitalia
Basic Functions of the Structure
28
Anatomy
Undergraduate 1
04/25/2011

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Term
Scrotum
Definition
ual-chambered protuberance of skin and muscle containing the testicles and divided by a septum.
Term
Cremaster Muscle
Definition
raise and lower the testes in order to regulate the temperature of the testes and promote spermatogenesis.
Term
Spermatic Cord
Definition
The surrounding tissue that run from the abdomen down to each testicle.
Contains:
arteries: testicular artery, deferential artery, cremasteric artery
nerves: nerve to cremaster &, testicular nerves
vas deferens (ductus deferens)
pampiniform plexus
lymphatic vessels
tunica vaginalis (remains of the processus vaginalis)
Term
Inguinal Ligament
Definition
Holds soft tissues as they course anteriorly from the trunk to the lower extremity.
Term
Deep Inguinal Ring
Definition
entrance to the inguinal canal.
Term
Superficial Inguinal Ring
Definition
forms the exit of the inguinal canal,
Term
Inguinal Canal
Definition
conveys the spermatic cord
Term
Spermatic Facia
Definition
bilayered fascia covering the testis
Term
Dartos Muscle
Definition
regulate the temperature of the testicles, which promotes spermatogenesis by expanding or contracting to wrinkle the scrotal skin.
Term
Testes
Definition
components of both the reproductive system and the endocrine system.
produce sperm (spermatogenesis) and to produce androgens, primarily testosterone.
Term
Testes
Definition
components of both the reproductive system and the endocrine system.
produce sperm (spermatogenesis) and to produce androgens, primarily testosterone.
Term
Seminiferous Tubules
Definition
specific location of meiosis and creation of gametes, mostly spermatozoa.
Term
Epididymis
Definition
a narrow, tightly-coiled tube connecting the efferent ducts from the rear of each testicle to its vas deferens.
Term
Epididymis
(Head)
Definition
Concentration of sperm is dilute.
The head of the epididymis receives spermatozoa via the efferent ducts of the mediastinum of the testis.
Term
Epididymis
(Body)
Definition
The Body
Term
Epididymis
(Tail)
Definition
This has a thicker myoepithelium than the head region, as it is involved in absorbing fluid to make the sperm more concentrated.
Term
Ductus Deferens
(Vas deferens)
Definition
transport sperm from the epididymis in anticipation of ejaculation.
Term
Seminal Vesicle
Definition
secrete a significant proportion of the fluid that ultimately becomes semen.
Term
Ejaculatory Duct
Definition
During ejaculation, semen passes through the ducts and exits the body via the penis.
Term
Prostate Gland
Definition
store and secrete a slightly alkaline fluid, milky or white in appearance,[5] that usually constitutes 20-30% of the volume of the semen along with spermatozoa and seminal vesicle fluid.
Term
Bulbourethral Gland
(Cowper's Gland)
Definition
produces a clear, viscous secretion known as pre-ejaculate to help lubricate the urethra for spermatozoa to pass through
Term
Urethra
Definition
provides an exit for urine as well as semen during ejaculation.
Term
Penis
Definition
It is a reproductive, intromittent organ that additionally serves as the urinal duct
Term
Penis
(Corpus Spongiosum)
Definition
in erection is to prevent the urethra from pinching closed, thereby maintaining the urethra as a viable channel for ejaculation.
Term
Penis
(Corpus Cavernosum)
Definition
contain most of the blood in the penis during penile erection.
Term
Penis
(Deep Artery/ Dorsal vv)
Definition
Arises from that vessel while the penis is stimulated
Term
Penis
(Prepuce)
Definition
retractable double-layered fold of skin and mucous membrane that covers the glans penis and protects the urinary meatus
Term
Penis
(Sponge Urethra)
Definition
that part of the urethra surrounded by erectile tissue
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