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A?
Seminal vesicle/gland

B?
Ejaculatory duct

C?
Bulbourethral gland

D?
Vas/ductus deferens

E?
Prostate gland

F?
Epididymis

G?
Testis

A?
Prostatic urethra

B?
Membranous urethra

C?
Penile/spongy urethra

D?
External urethral meatus

E? (muscle)
Dartos muscle

A?
Vas/ductus deferens

B?
Epididymis

C?
Glans/glans penis

D?
Seminal gland/vesicle

E?
Prostate gland

F?
Testis

G?
Scrotum
Where are sperm produced?
seminiferous tubules (testes)
Where are sperm stored?
epididymis
Sperm pathway (9 steps)
1) Seminiferous tubules
2) Rete testis
3) Epididymis
4) Vas/ductus deferens
5) Ejaculatory duct
6) Prostatic urethra
7) Membranous urethra
8) Penile/spongy urethra
9) External urethral meatus

A?
Epididymis

B?
Rete testis

C?
Seminiferous tubule

D?
Dartos muscle

E?
Cremaster muscle

A?
Spermatic cord

B?
Vas/ductus deferens

C?
Epididymis

D?
Rete testis

E?
Seminiferous tubule

F?
TESTIS

A?
Prepuce

B?
External urethral meatus

C?
Cremaster muscle

D?
Scrotum

E?
Spermatic cord

F?
Epididymis

G?
Testis

A?
Prostate gland

B?
Bulbourethral gland

C?
Corpus cavernosum

D?
Corpus spongiosum

E?
Glans/glans penis

A?
Prostatic urethra

B?
Membranous urethra

C?
Penile/spongy urethra

A?
Seminal glands
seminal glands produce…
fructose in secretions to provide energy for sperm to swim

B?
Prostate glands
prostate glands produce…
slightly acidic, milky secretion that activates sperm

C?
Bulbourethral glands
bulbourethral glands produce…
thick, alkaline mucus to neutralize urine + lubricate penis tip

A?
Corpus cavernosum

B?
Corpus spongiosum

A?
Seminiferous tubule

B?
Spermatozoa

C?
Interstitial cells

D?
Spermatogenesis

E?
Testosterone

A?
Spermatogenic cell

B?
Sperm

C?
Nurse cell

D?
Interstitial cell

A?
Head

B?
Midpiece

C?
Tail/flagellum
Spemiogenesis
sperm maturation
Spermiogenesis occurs in
seminiferous tubules (in testes)
3 things that occur during spermiogenesis
1) spermatids elongate
2) lose cytoplasm
3) flagellum extends
GnRH
causes release of FSH + LH from anterior pituitatary
FSH
stimulates sperm prod. in seminiferous tubules
-nurse cells will produce Androgen-binding protein
-ABP concentrates testosterone around spermatogenic cells
LH
stimulates interstitial cells to prod. testosterone
Testosterone
stimulates sperm prod.