Editing Testicle (section)

{{Short description|Internal organ in the male reproductive system}}
{{Pp-move-indef}}
{{Pp-vandalism|small=yes}}
{{Infobox anatomy
| Name        = Testicle
| Latin       = testis
| Image       = Testicle_hariadhi.svg
| Caption     = Diagram of inner structures of a human testicle (the labelling "seminal vesicle lobules" is incorrect and should be "testicular lobules" instead)
| Width       = 300
| Image2      = Gray1144.png
| Caption2    = Diagram of the external features and surrounding structures of the testicles of an adult male
| Precursor   =
| System      =
| Artery      = [[Testicular artery]]
| Vein        = [[Testicular vein]], [[pampiniform plexus]]
| Nerve       = [[Spermatic plexus]]
| Lymph       = [[Lumbar lymph nodes]]
}}
[[File:Testis.gif|thumb|right|202px| Animation of the migration of spermatozoa from their origin as germ cells to their exit from the [[vas deferens]].  A) Blood vessels; B) Head of [[epididymis]]; C) Efferent ductules; D) [[Seminiferous tubule]]s; E) Parietal lamina of [[tunica vaginalis]]; F) Visceral lamina of tunica vaginalis; G) Cavity of tunica vaginalis; H) Tunica albuginea; I) Lobule of testis; J) Tail of epididymis; K) Body of epididymis; L) [[Mediastinum testis]]; M) Vas deferens.]]

A '''testicle''' or '''testis''' ({{plural form}} '''testes''') is the [[gonad]] in all male [[bilateria]]ns, including humans, and is [[Homology (biology)|homologous]] to the [[ovary]] in females. Its primary functions are the production of [[sperm]] and the secretion of [[Androgen|androgens]], primarily [[testosterone]].

The release of testosterone is regulated by [[luteinizing hormone]] (LH) from the [[anterior pituitary gland]]. Sperm production is controlled by [[follicle-stimulating hormone]] (FSH) from the anterior pituitary gland and by testosterone produced within the gonads.