The glandular structure of the
testis
A testicle or testis (plural testes) is the male reproductive gland or gonad in all bilaterians, including humans. It is homologous to the female ovary. The functions of the testes are to produce both sperm and androgens, primarily testostero ...
consists of numerous lobules.
Their number, in a single testis, is estimated by Berres at 250, and by Krause at 400.
Anatomic studies have demonstrated figures of 250–290 for the same.
They differ in size according to their position, those in the middle of the gland being larger and longer.
The lobules are conical in shape, the base being directed toward the circumference of the organ, the apex toward the
mediastinum testis
The mediastinum testis is a network of fibrous connective tissue that extends from the top to near the bottom of each testis. It is wider above than below.
Numerous imperfect septa are given off from its front and sides, which radiate toward the ...
.
Each lobule is contained in one of the intervals between the fibrous
septa
The Southeastern Pennsylvania Transportation Authority (SEPTA) is a regional public transportation authority that operates bus, rapid transit, commuter rail, light rail, and electric trolleybus services for nearly 4 million people in five c ...
which extend between the mediastinum testis and the
tunica albuginea, and consists of from one to three, or more, minute convoluted tubes, the
tubuli seminiferi.
Additional images
File:Gray1149.png, Vertical section of the testis, to show the arrangement of the ducts
References
External links
* - "Inguinal Region, Scrotum and Testes: Testis"
Mammal male reproductive system
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