Fig. 13.5 Structure of the seminiferous tubules. (Sources of images and videos below. Used with permission.)

Videos

Male system

“The Testes”

https://blausen.com/en/video/the-testes/

“Testicles Secrete Testosterone”

https://blausen.com/en/video/testicles-secrete-testosterone/

“Male Reproductive Hormones (Positive Feedback)”

https://blausen.com/en/video/male-reproductive-hormones-positive-feedback/

NOTE: Though hormones from the pituitary gland (FSH and LH) stimulate testosterone production (a positive effect on the testes), testosterone inhibits the production of the pituitary hormones FSH and LH. Thus overall, this is a negative feedback system, which maintains homeostasis of testosterone levels.

“Seminiferous Tubules”

https://blausen.com/en/video/seminiferous-tubules/

“Anatomy of a Spermatozoon”

https://blausen.com/en/video/anatomy-of-a-spermatozoon/

© Copyright 2020: Augustine G. DiGiovanna, Ph.D., Salisbury University, Maryland
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Sources of images and videos. Used with permission.

https://www.wikidoc.org/index.php/Spermatogenesis

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Description English: Illustration from Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013.

Date 2 May 2013, 20:38:41

Source Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013.

Author OpenStax College

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