testicle
Sign in to savethumb|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 tubules; 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, also called testis ( testes) is the male gonad in all gonochoric animals, including humans, and is homologous to the ovary, whi
AI overview
A testicle (or testis) is the male gonad that produces spermatozoa, which travel through a series of ducts including the epididymis and vas deferens before exiting the body. It is the male equivalent of the ovary and is essential for male reproduction in humans and other animals.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Anatomy.Name
- Testicle
- Anatomy.Latin
- testis
- Anatomy.Image
- Testicle_hariadhi.svg
- Anatomy.Caption
- Diagram of inner structures of a human testicle (the labelling "seminal vesicle lobules" is incorrect and should be "testicular lobules" instead)
- Anatomy.Width
- 300
- Anatomy.Image2
- Gray1144.png
- Anatomy.Caption2
- Diagram of the external features and surrounding structures of the testicles of an adult male
- Anatomy.Artery
- Testicular artery
- Anatomy.Vein
- Testicular vein, pampiniform plexus
- Anatomy.Nerve
- Spermatic plexus
- Anatomy.Lymph
- Lumbar lymph nodes
- Medical condition.name
Article
30 sectionsContents
- Structure
- Appearance
- Measurement and volume
- Internal structure
- Duct system
- Primary cell types
- Blood supply and lymphatic drainage
- Layers
- The blood–testis barrier
- Temperature regulation and responses
- Gene and protein expression
- Development
- Clinical significance
- Protection and injury
- Diseases and conditions
- Effects of exogenous hormones
- Society and culture
- Etymology and slang
- Other animals
- External appearance
- Location
- Internal
- External
- Size
- Internal structure
- Gallery
- See also
- General and cited references
- Citations
- External links
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 tubules; 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, also called testis ( testes) is the male gonad in all gonochoric animals, including humans, and is homologous to the ovary, which is the female gonad. Its primary functions are the production of sperm and the secretion of 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.