The diagram of testicle shows its internal structure which helps to study the male reproductive anatomy. A testicle, also known as a testis, is a small, oval-shaped gland present inside the scrotum. The diagram of testes class 12 is an important topic in the biology syllabus.
The labeled diagram of testicle is given below:
Table of Content
What is Testicle?
A testicle is one of two oval-shaped glands that are located inside the scrotum. They are the important organ of the male reproductive system that produces sperm and different major male hormones. It is suspended in the scrotum by the spermatic cord so that its upper pole is tilted forward and medially. The diagram of testes labeled shows its clear structure which helps in studying its anatomy.
Structure of Testicle
The diagram of testicles shows its structure as the oval-shaped organs located in the scrotum. They are responsible for making sperm, testosterone and other important hormones. Here, the anatomy of the testicle is mentioned in tabular form:
| Tunica vaginalis | A thin, smooth layer covering the testes. |
| Tunica albuginea | A tough capsule surrounding each testis. |
| Seminiferous tubules | Tiny coiled tubes inside the testes where sperm are made. |
| Rete testis | A network of tubes that collect sperm from the seminiferous tubules. |
| Epididymis | A tightly coiled tube where sperm mature and are stored before being ejaculated. |
| Vas deferens | It is a muscular tube that carries sperm from the epididymis to the urethra. This process happens during the ejaculation process. |
| Ejaculatory duct | Tubes formed by the joining of the vas deferens and the duct of the seminal vesicle, which carry sperm into the urethra. |
| Seminal vesicles | These Glands produce the fluid to nourish and transport sperm. |
| Prostate gland | A small gland that produces fluid to help make semen. |
| Bulbourethral glands | Small glands that make fluid to lubricate the urethra. |
| Spermatic cord | A bunch of fibers and tissues that holds the blood vessels, nerves, and vas deferens. |
| Scrotum | The pouch outside the body that holds the testes. |
| Pampiniform plexus | A network of veins that cools blood going to the testes. |
| Cremaster muscle | A thin muscle that helps control the position of the testes. |
Hormones Produced by the Testicles
Here are the major hormones made by the testicles:
| Hormone | Function |
|---|---|
| Testosterone | Makes voices deeper Builds stronger muscles Helps grow body hair |
| Inhibin B | Shows how big the testicles are and how many sperm there are in adults |
| Anti-Mullerian hormone | Helps grow inside parts of male reproductive system during development |
| Insulin-like factor 3 | Helps move testicles down from the belly into the sac Keeps them growing in the sac |
| Estradiol | Helps make sperm |
Conclusion - Diagram of Testicle
A diagram of testicle shows it as one of two oval shaped glands that are located inside the scrotum. They are the important organ of the male reproductive system that produce sperm and different major male hormones. The labeled diagram of testicle is given in the article above.
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