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43 Cards in this Set
- Front
- Back
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External Genitalia - Scrotum
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A sac of skin posterior to peins that holds testi in place - Pubic symphasis(anterior), ischial tuberosities(lateral), coccyx(posterior)
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Scrotum - Septum
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midline that divides scrotum
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Spermatic Cord
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Tube of fascia that contains testicular vessels and nerves, connect testis with inside of body
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Epididymus
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First duct in transportation of maturing sperm
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Vas Deferens
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reproductive organ, carry matured sperm
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Tunica Vaginalis
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Serous sac enclosing testis, extension of peritoneum
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Dartos Muscle
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smooth muscle that wrinkles scrotum skin to maintain body temperature
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Cremaster Muscle
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Skeleteal muscle that elevates testis to body to keep warm
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Testicular Artery
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extends through abdominal wall through inlingual calanto scrotum, serve testis, from aorta
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Testicular Vein
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Runs with testcular artery, right drains into inferior vena cava, left drains ito left renal vein
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Pampiniform Plexus
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Absorbs heat from arterial blood and keeps testis cool
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Testis
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Retroperitoneal
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Tunica Albuginea
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Fibrous capsule of testis, dense connective tissue. Lies deep to visceral layer of tunica vaginalis. Extensions lie inwards to divide tesis into 250-300 lobules
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Seminiferous Tubules
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Coiled in lobules, actual sperm factories
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Tubulue Rectus
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Seminiferous tubules converge posteriorlyand form straight tubule that conveys sperm into Rete Testis
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Rete Testis
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a network of tiny branching tubes
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Sertoli(sustentacular) cells
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surround sperm during maturation
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Blood Testis Barrier
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tight junction between sertoli cell, preventsescape of sperm into blood stream which would activate immune sperm. Tight junctioms divide basal from adluminal compartment of seminifrous tubule. Conveys nutrients, pharocytize shed cytoplasm from maturing sperm. Secrete testicular fluid
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Leydig (Interstital) Cells
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Between seminiferous tubules, secrete testosterone
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Myoid Cells
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Surround tubules, contractible. Propel immature sperm that are not yset motile out of testis
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Ducts Of Epididymus
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reabsorbes testicular fluid, matures and stores sperm from epididymus
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Stereocilia
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microvilli that provide a large surface area and move sperm along
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Ductus van Deferens
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stores and transports sperm during ejaculation. Ampulla.
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Ejactulatory duct
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runs with prostate gland and drains semen into prostatic urethra
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Seminal Vesicles
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Immune suppressors, sperm motility, prostiglandis(fuel sperm, stimulate uterine contraction), enzymes,smooth muscle in wall, produce 60% of sperm volume, fructose(nourishes sperm), yellow pigment
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Prostate
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enhances sperm motility, enzymes, 1/3 of semen volume, prostate-specific antigen (PSA)
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Tubuoalveolar Glands
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main, mucosal, submucosal, enhance sperm motility
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Fibromuscular Stroma
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dense connective tissue and smooth muscle, holding all 3 types of tubulaveolar glands. Contracts during ejaculation to squeeze prostatic secretion into urethra
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Bulbourethral glands
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Produce mucous that neutralize acidic urine, lubricate urethra
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Spiongy Urethra
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in penis, contains urethral glands that secrete mucoud which lubricates urethra proior to ejaculation
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Corpus Spongiosum
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enlarged proximally to form bulb, runs between corpa cavernosa carrying urethra
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Corpus Cavernosa
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run along ishium rami, urthra between in
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Crura
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Legs of penis
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Bulbospongiosus
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empties urethra and assists in erects, encloses base
Origin: Ischial Tuberosities Insertion: Corpus Spongiosum Midline |
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Ischiocavernous
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Maintains erection, runs from pelvis to base
Origin: Ischial Tuberosities Insertion: Crura of penis |
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Pelvic Diaphragm - Levator Ani
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whole group of muscles
Origin: Ischium and Pubis Insertion: Midline S3, S4, pundendal nerve |
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Coccygeus
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Small muscle, keeps things toned and in
Origin: Ischial Spine Insertion: Sacrum coccyx S3, S4 |
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Pelvic Floor
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keeps everything up and in
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Deep Transverse Perineal Muscle
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suppors pelvic organs, steadies central tendon
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External Urethral Sphincter
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Constricts urethra, inhibits urination, supports pelvic organs
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Gubernaculum
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Pulls testis out to scrotum
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Inguinal Canal
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Hole in abdominal wall where testis fall through
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Inguinal Hernias
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Hole gets opened up again becauseof pressure and perotineal lining bulges through
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