Male Perineum and External Genitalia (Superficial Dissection) Anatomy

Male Perineum and External Genitalia (Superficial Dissection) Anatomy

pediagenosis    April 20, 2025    Comment   

Male Perineum and External Genitalia (Superficial Dissection) Anatomy

Superficial fatty (Camper’s) and deeper membranous (Scarpa’s) layers of superficial fascia, Skin of penis, Deep (Buck’s) fascia of penis, Dartos fascia of penis and scrotum, Saphenous opening and femoral artery and vein, 

Perineum Anatomy

Perineum Anatomy

pediagenosis    September 26, 2023   

Perineum Anatomy

Deep Dissection Of Male Perineum

Below the pelvic floor lies the perineum, a superficial region traversed by the anal canal and the lower parts of the genital and urinary tracts. The perineum is diamond-shaped, extending anteriorly to the pubic symphysis, posteriorly to the coccyx and laterally to the ischial tuberosities (Figs 5.34 & 5.3). On each side, the region is bounded by the conjoined rami of the ischium and pubis and by the sacrotuberous ligament, which is overlapped by the inferior border of gluteus maximus. Inferiorly, the perineum is bounded by skin. By convention, the perineum is divided into two triangular areas by a line joining the ischial tuberosities. Posteriorly is the anal triangle, containing the anal canal and the ischioanal (ischiorectal) fossae, and anteriorly lies the urogenital triangle, containing the external genitalia.

Arteries and Veins of Perineum and Uterus Anatomy

Arteries and Veins of Perineum and Uterus Anatomy

pediagenosis    January 31, 2023    Comment   

Arteries and Veins of Perineum and Uterus Anatomy

Round ligament, Tubal, Ovarian, Uterine vessels, Ureter, Vaginal branches of uterine artery, Vaginal artery, Levator ani muscle, Perineal membrane, Internal pudendal artery, Perineal artery, Superficial perineal space, Superficial perineal (Colles’) fascia, Posterior labial artery, Ischiocavernosus muscle, Bulbospongiosus muscle, Superficial perineal space, Perineal membrane, Perineal artery, Superficial transverse perineal muscle, Perineal artery, Internal pudendal artery in pudendal canal (Alcock’s), Inferior rectal artery, External anal sphincter muscle.

Arteries and Veins of Pelvis Male Anatomy

Arteries and Veins of Pelvis Male Anatomy

pediagenosis    January 31, 2023   

Arteries and Veins of Pelvis: Male Anatomy

Common iliac arteries, Lateral sacral artery, Right Internal iliac vessels, Inferior epigastric vessels, Urinary bladder, Prostate gland, Prostatic venous plexus, Cavernous vein, Ureter, Median sacral artery and vein, Superior gluteal artery, Umbilical artery, Superficial dorsal vein of penis, Deep dorsal vein and left dorsal artery of penis, 

Arteries of Pelvis: Female Anatomy

Arteries of Pelvis: Female Anatomy

pediagenosis    January 30, 2023    Comment   

Arteries of Pelvis: Female Anatomy

Median sacral artery, Iliolumbar artery, Lateral sacral arteries, Superior gluteal artery, Piriformis muscle, Inferior gluteal artery, Internal pudendal artery, Coccygeus muscle, Sacrotuberous ligament, Obturator fascia (of obturator internus muscle), Internal pudendal artery in pudendal canal (Alcock’s), Levator ani muscle (cut edge), Internal iliac artery, Posterior division, Anterior division, External iliac artery, Obturator artery, Umbilical artery (patent part), Middle rectal artery, Uterine artery, Vaginal artery, Accessory obturator artery, Superior vesical arteries, 

External Anal Sphincter Muscle: Perineal Views Anatomy

External Anal Sphincter Muscle: Perineal Views Anatomy

pediagenosis    January 29, 2023    Comment   

External Anal Sphincter Muscle: Perineal Views Anatomy

Male Dartos fascia of scrotum, Septum of scrotum, Deep (Buck’s) fascia of penis, Perineal membrane, Perineal body, Superficial perineal (Colles’) fascia (cut edges), Transverse fibrous septum of ischioanal fossa (cut), Ischial tuberosity, Sacrotuberous ligament, Gluteus maximus muscle, Tip of coccyx, Pubococcygeus, Puboanalis (puborectalis), Iliococcygeus, Subcutaneous, Superficial, Deep,

Actual and Potential Perineopelvic Spaces Anatomy

Actual and Potential Perineopelvic Spaces Anatomy

pediagenosis    January 29, 2023    Comment   

Actual and Potential Perineopelvic Spaces Anatomy

Sagittal section, Visceral peritoneum, Vesical fascia, Rectal fascia, Rectal fascia, Presacral fascia, Presacral space, Rectovesical or rectoprostatic (Denonvilliers’) fascia (septum), Levator ani muscle and fascia of pelvic diaphragm, Deep postanal space, Anococcygeal body (ligament), Superficial postanal space (part of perianal space), Submucous space, Perianal space, Bulbospongiosus muscle and deep perineal (Gallaudet’s) fascia, 

Arteries of Rectum and Anal Canal: Male Posterior View Anatomy

Arteries of Rectum and Anal Canal: Male Posterior View Anatomy

pediagenosis    January 29, 2023    Comment   

Arteries of Rectum and Anal Canal: Male Posterior View Anatomy

Inferior mesenteric artery, Abdominal aorta, Inferior vena cava, Median sacral artery, Common iliac artery, External iliac artery, Internal iliac artery, Superior gluteal artery, Inferior gluteal artery, Accessory obturator artery, Inferior epigastric artery, Left colic artery, Ascending branch, 

Homologues of External Genitalia Anatomy

Homologues of External Genitalia Anatomy

pediagenosis    June 18, 2021   

Homologues of External Genitalia Anatomy

Glans area, Epithelial tag, Urogenital fold, Urogenital groove, Lateral part of tubercle, Anal tubercle, Anal pit, Undifferentiated, Genital tubercle, Male Female, Glans, Epithelial tag, Coronal sulcus, Site of future origin of prepuce, Urethral fold, Urogenital groove, 

Nerves of Perineum: Male Anatomy

Nerves of Perineum: Male Anatomy

pediagenosis    May 30, 2021    Comment   

Nerves of Perineum: Male Anatomy

Dorsal nerve of penis, Superficial perineal (Colles’) fascia (cut to open superficial perineal space), Superficial and deep branches of perineal nerve, Dorsal nerve of penis (passes superior to perineal membrane), Perineal nerve, Pudendal nerve, Pudendal canal (Alcock’s) (opened up), Obturator fascia (of obturator internus muscle), 

Nerves of Pelvic Viscera: Female Anatomy

Nerves of Pelvic Viscera: Female Anatomy

pediagenosis    May 30, 2021    Comment   

Nerves of Pelvic Viscera: Female Anatomy

Sympathetic trunk and L2 ganglion, White and gray rami communicantes, Lumbar splanchnic nerves, Gray rami communicantes L5 spinal nerve, Right hypogastric nerve (cut), Right and left sacral sympathetic trunks and ganglia, Piriformis muscle, Sacral splanchnic nerves (sympathetic), Pudendal nerve, Pelvic splanchnic nerves (parasympathetic), 

Nerves of Perineum and External Genitalia: Female Anatomy

Nerves of Perineum and External Genitalia: Female Anatomy

pediagenosis    May 30, 2021    Comment   

Nerves of Perineum and External Genitalia: Female Anatomy

Anterior labial branch (from ilioinguinal nerve), Dorsal nerve of clitoris, Posterior labial nerves, Superficial, Deep, Branches of perineal nerve, Perineal branch of posterior femoral cutaneous nerve, Dorsal nerve of clitoris passing superior to perineal membrane, Inferior clunial nerves, Gluteus maximus muscle (cut away), Pudendal nerve in pudendal canal (Alcock’s) (dissected), Perineal nerve, Sacrotuberous ligament, Anococcygeal nerves, Inferior anal (rectal) nerves, 

Neuropathways in Parturition Anatomy

Neuropathways in Parturition Anatomy

pediagenosis    May 30, 2021    Comment   

Neuropathways in Parturition Anatomy

Splanchnic nerves, Greater, Lesser, Least, Celiac ganglion, Aorticorenal ganglion, Superior mesenteric ganglion, Intermesenteric (abdominal aortic) plexus, Lumbar splanchnic nerves, Sympathetic trunk and ganglia T11 spinal nerve (anterior ramus), Rami communicantes, Subcostal nerve (T12), Inferior mesenteric ganglion, T7 spinal nerve (anterior ramus), Intermesenteric (abdominal aortic) plexus, Superior hypogastric plexus, S1 spinal nerve (anterior ramus),

Innervation of Female Reproductive Organs: Schema Anatomy

Innervation of Female Reproductive Organs: Schema Anatomy

pediagenosis    May 30, 2021    Comment   

Innervation of Female Reproductive Organs: Schema Anatomy

Sympathetic trunk and ganglion, Gray ramus communicans, White ramus communicans, Greater thoracic splanchnic nerve, Lesser thoracic splanchnic nerve, Least thoracic splanchnic nerve, Sympathetic trunk, Lumbar splanchnic nerves, L3 spinal nerve (anterior ramus), Ovarian artery and plexus, Uterine (fallopian) tube, Celiac ganglia and plexus, Aorticorenal ganglia, 

Innervation of Male Reproductive Organs Schema Anatomy

Innervation of Male Reproductive Organs Schema Anatomy

pediagenosis    May 29, 2021   

Innervation of Male Reproductive Organs: Schema Anatomy

Sympathetic trunk and ganglion, Greater thoracic splanchnic nerve (T5–9), Gray ramus communicans, White ramus communicans, Lesser thoracic splanchnic nerve, Least thoracic splanchnic nerve, Upper lumbar splanchnic nerves, Gray ramus communicans, Testicular artery and plexus, Ductus (vas) deferens and plexus, Pelvic splanchnic nerves, 

Innervation of Urinary Bladder and Lower Ureter: Schema Anatomy

Innervation of Urinary Bladder and Lower Ureter: Schema Anatomy

pediagenosis    May 26, 2021    Comment   

Innervation of Urinary Bladder and Lower Ureter: Schema Anatomy

Spinal (posterior root) ganglion, Posterior root, Anterior root, White, Gray Rami communicantes, Renal ganglion Celiac ganglia, Superior mesenteric ganglion, Aorticorenal ganglion, Renal artery and plexus, Intermesenteric (abdominal aortic) plexus, Inferior mesenteric ganglion, Superior hypogastric plexus, 

Genetics of Reproduction Anatomy

Genetics of Reproduction Anatomy

pediagenosis    May 18, 2021    Comment   

Genetics of Reproduction Anatomy

Spermatogenesis, Crossing over Mendelian inheritance, Pair of homologous chromosomes (tetrad), Recombinant chromatids, Parental generation F1 generation, F2 generation 3:1 red to white, Chiasma, Spermatogonium (2n) Oogonium (2n) Puberty, Fertilization, 

Female Urethra Anatomy

Female Urethra Anatomy

pediagenosis    May 18, 2021    Comment   

Female Urethra Anatomy

Ureteric orifice, Trigone of urinary bladder, Neck of urinary bladder, Detrusor muscle of bladder wall, Cavernous venous plexus of urethra, Levator ani muscle and Fibromuscular extension, Urethra, Sphincter urethrae muscle, Perineal membrane, Bulb of vestibule, 

Fasciae of Male and Female Pelvis and Perineum Anatomy

Fasciae of Male and Female Pelvis and Perineum Anatomy

pediagenosis    May 18, 2021    Comment   

Fasciae of Male and Female Pelvis and Perineum Anatomy

Superficial fascia: Superficial fascia: Uterovaginal fascia (purple), Vesical fascia (purple), Fatty (Camper's) fascia, Membranous (Scarpa's) fascia, Fatty (Camper's) fascia, Membranous (Scarpa's) fascia, Deep perineal pouch with endopelvic fascia, External urethral sphincter muscle,

Male Pelvis Cross Section of Bladder Prostate Gland Junction Anatomy

Male Pelvis Cross Section of Bladder Prostate Gland Junction Anatomy

pediagenosis    May 18, 2021   

Male Pelvis: Cross Section of Bladder Prostate Gland Junction Anatomy

Spermatic cord, Beginning of urethra, Prostate gland, Psoas muscle and tendon, Iliacus muscle, Head of femur, Neck of femur, Gluteus medius muscle, Gluteus minimus tendon, Greater trochanter, Inferior gemellus muscle, Right sciatic nerve, Gluteus maximus muscle, Obturator internus muscle, Sacrotuberous ligament, Openings of ejaculatory ducts (in prostatic urethra),