OIA1004 (TERMS) MALE REPRODUCTIVE SYSTEM

Testis

Ellipsoid-shaped organ producing sperm and hormones.

Epididymis

Stores and matures sperm from the testis.

Ductus deferens

Transports sperm from epididymis to urethra.

Ejaculatory duct

Connects ductus deferens to prostatic urethra.

Urethra

Passage for urine and semen in males.

Scrotum

Pouch containing the testes, regulates temperature.

Spermatogenesis

Process of sperm production from spermatogonia.

Spermiogenesis

Transformation of spermatids into motile sperm.

Leydig cells

Secrete testosterone in interstitial tissue of testes.

Sertoli cells

Support and nourish developing sperm cells.

Cryptorchidism

Condition of undescended testicles at birth.

Hydrocele

Fluid-filled sac around the testis.

Spermatocele

Cyst containing sperm in the epididymis.

Hematocele

Blood accumulation in the scrotal sac.

Seminal vesicles

Produce 85% of seminal fluid volume.

Prostate gland

Secretes fluid contributing to semen composition.

Bulbourethral glands

Secrete mucus for lubrication during ejaculation.

Phimosis

Tight foreskin preventing retraction over glans.

Paraphimosis

Foreskin trapped behind glans, causing constriction.

Corpora cavernosa

Two erectile tissues forming the penis shaft.

Corpus spongiosum

Surrounds urethra, prevents closure during erection.

Erection

Increased blood flow causing penis hardening.

Ejaculation

Forceful expulsion of semen from the penis.

Detumescence

Process of penis returning to flaccid state.

Semen

Fluid containing sperm and secretions from glands.

Sperm count

Normal range is 50-100 million sperm/mL.

Vasectomy

Surgical procedure cutting the vas deferens.

Benign prostatic hyperplasia (BPH)

Enlarged prostate common in older males.

Orchidometer

Device measuring testicle size for development tracking.

Tanner stages of puberty

Stages of sexual maturity in boys.

Ampulla

Dilation of ductus deferens before prostate entry.