Hello everyone, how are you all? I hope you are doing well and i am too
Its been more than 1 week i am away from hive bcz i had exams and workload and i finished my exams and now i am little bit free.

Today we are going to see, normal histology of testis. There are a pair of testis present in every male. It will grow in size from birth to till we reach adult life. They are oval in shape present in scrotum and their role is to produce sperms and secrete testosterone hormone. We heard testosterone word but which cells produce testosterone hormone? To get know about that lets dive into histology of testis.

Testis is covered by three layers- tunica vaginalis, tunica albuginea, tunica vasculosa from outside to inside. The tesis has lobules of seminiferous tubules. Each lobule has 1-4 seminiferous tubules.

4X eyepiece magnification

So these all are seminiferous tubules and in these tubules production of sperms will occur.

10X eyepiece magnification

The seminiferous tubules are tubular in shape and the spermatogenesis happens in these tubules. The cells which are attached to base or near to base are spermatogonia then these are transformed into primary spermatocytes(having largest nucleus among all in spermatogenesis process) and then to spermatocytes and then to spermatids. Then these spermatids stay in epididymis and vas deference and will mature to sperms when the man wants to ejaculate.

You can see leydig cells - They are cells which are present as clusters or in singles. These cells display round nucleus with distinct nucleoli with abundant pink cytoplasm.
These leydig cells are present in between seminiferous tubules.
So in the lumen the hazy kind of thing are the spermatids.

There are special kind of cells called sertoli cells which are present in between these germ cells and they are supporting cells in between them.

This is all about normal histology of testis. Next post i will come with new one. Hope you understood Keep learning.

References

• Histology for Pathologists, Stacey E Mills MD, 5th edition

Thanks for reading,
With regards,