Male Anatomy

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Last updated: May 12, 2026

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First submitted	May 12, 2026
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Hint	Answer
Layers of superficial fascia of anterior abdominal wall(contains fat, veins + nerves)	Fatty Camper's fascia
Layers of superficial fascia	Membranous scarpa's fascia

Muscles of anterior abdominal wall (3 flat equivalents of intercostal thorax muscles)	External oblique
Muscles of anterior abdominal wall 2	Internal oblique
Muscles of anterior abdominal wall 3	Transversus abdominis
Direction of fibres in these	inferomedially hands in pockets
Direction 2	superomedially hands in armpits
Direction 3	horizontally

Muscles in rectus sheath	rectus abdominis, pyramidalis
Importance of linea alba	avascular so used by surgeons
What becomes the femoral artery and vein after passing under what	external iliac artery and vein, inguinal ligament

Skin layer of ant. abdo wall - equivalent in Testes + Spermatic Cord	Skin
Camper + Scarpa fascia equivalent	Dartos fascia
External oblique equivalent	External spermatic fascia
Internal oblique equivalent	Cremasteric muscle
Transversus abdominus muscle equivalent	none
Transversalis fascia equivalent	Internal spermatic fascia
Parietal Peritoneum equivalent	Tunica Vaginalis around testes

In what does the deep inguinal ring open	Transversalis Fascia
What structure of the scrotal sac wrinkles in the cold?	Dartos fascia
What is responsible for spermatozoa production	Seminiferous tubules
What produces androgens	Leydig cells

What guides the testes from the posterior abdo wall to the labioscrotal swelling?	Gubernaculum and process vaginalis
Where is the vas deferens in reference to the ureter and bladder	superior to ureter, superolateral bladder surface

3 Arteries of Spermatic cord and origin	Testicular artery, abdominal aorta
Arteries	Artery to vas deferens, superior vesicle

Hint	Answer
Arteries	Cremasteric artery, inferior epigastric artery
3 Nerves of Spermatic cord	Autonomic
Nerve + innervation	Genital branch of genitofemoral nerve, cremasteric muscle
Nerve (travels with cord) + innervation	ilioinguinal nerve, ab wall muscles
3 Others	Vas/ductus deferens
Others (controls temperature)	pampiniform plexus
Others	Lymphatics

Where does testicular and scrotal lymph drain	aortic (lumbar) nodes
Why are most varicocele on the left pampiniform venous plexus	drains into left renal vein not IVC at an angle
What produces 70% semen and what produces 20% of it?	Seminal vesicles, prostate gland

Most common site of prostate cancer	Peripheral Zone
Prostate zone that surrounds ejaculatory duct and site of rare cancers	Central Zone
Prostate zone that surrounds urethra and site of BPH	Transitional Zone
Region of fibromuscular tissue (not zone as minimal glandular tissue)	Anterior Region

Bulbourethral glands location	inferior to prostate
Bulbourethral gland function	Mucous production - lubricates and neutralises urine for semen passage

Parts of Male urethra from bladder to toilet	prostatic part, membranous part, spongy parts
Three cylindrical bodies of erectile tissue	2 corpora cavernosa, 1 corpus spongiosum
Parts of root of penis	bulb, crura
What are the left and right crura attached to	Pubic bone
What covers the crus	ischicavernosus muscle
What covers the bulb	bulbospongiosus muscle

Female equivalent of inferior vesicle artery	vaginal artery
Point, shoot, score; nerve for erection	PNS pelvic splanchnic nerves s2-s4
Point, shoot, score; nerve for emission	SNS lower lumbar and sacral splanchnic nerves via hypogastric nerve
Point, shoot, score; nerve for ejaculation	Somatic: pudendal nerve S2-S4