A testicle or testis (pl. testes) is the gonad in all male bilaterians, including humans, and is homologous to the ovary in females. 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.

2022年8月9日 · Testicles, or testes, are the part of the male reproductive system that makes sperm and hormones. They’re located outside your body. Talk to your healthcare provider if your testicles change in some way.

2023年11月3日 · The testes (testicles) are male reproductive glands found in a saccular extension of the anterior abdominal wall called the scrotum. They are in ovoid shape, sized four to six centimeters in length. Testes develop retroperitoneally on the posterior abdominal wall and descend to scrotum before birth.

2024年11月2日 · The testes, or testicles, are two egg-shaped sex organs that play an important role in the male reproductive system. The testes are where sperm cells are produced and are also responsible for the production of the sex hormone testosterone.

2023年4月15日 · The testes are male sex glands that have both an endocrine and exocrine function. The testes are oval-shaped reproductive structures that are found in the scrotum and separated by the scrotal septum. The shape of the testes is bean-shaped and measures three cm by five cm in length and 2 cm to 3 cm in width.

2025年1月30日 · testis, in animals, the organ that produces sperm, the male reproductive cell, and androgens, the male hormones. In humans the testes occur as a pair of oval-shaped organs. They are contained within the scrotal sac, which is located directly behind the …

2023年10月15日 · The testes and epididymis are paired structures, located within the scrotum. The testes are the site of sperm production and hormone synthesis, while the epididymis has a role in the storage of sperm. In this article, we shall look at the anatomy of the testes and epididymis – their structure, vasculature, innervation and clinical correlations.

2018年5月29日 · The testes — also called testicles — are two oval-shaped organs in the male reproductive system. They’re contained in a sac of skin called the scrotum. The scrotum hangs outside the body in the...

2025年2月28日 · The testes (singular: testis), commonly known as the testicles, are a pair of ovoid glandular organs that are central to the function of the male reproductive system. The testes are responsible for the production of sperm cells and the male sex hormone testosterone.

2023年12月11日 · The testes are paired male sex glands located within the scrotum. They are oval-shaped and attached to the scrotum by the scrotal ligament. Each testis is surrounded by the double-layered tunica vaginalis. Deep to this layer is the tunica albuginea, a fibrous capsule that encloses the testicle and epididymis. 3.