
Testis Overview
The same layers surround the testis proper in the adult (seen here) that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Orientation of right image
The same layers surround the testis proper in the adult that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Tunica albuginea
The same layers surround the testis proper in the adult that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Seminiferous tubules
The same layers surround the testis proper in the adult that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Mediastinum
The same layers surround the testis proper in the adult that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Rete testis
The same layers surround the testis proper in the adult that were identified in the immature testis. Growth of the seminiferous tubules during puberty flattens the mediastinum into a wedge positioned at the posterior edge of the testis. Sperm is produced in the seminiferous tubules and transported to the rete testis in the mediastinum. 10x

Image sources >
The image on the left was taken of a slide in the University of Mississippi collection. The image on the right was taken of a slide in the University of Michigan collection.