Testosterone By: Katrina Felipe.

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Presentation transcript:

Testosterone By: Katrina Felipe

Steroid hormone Males: -Majority secreted from the testis -Small amounts from the outer layer of the adrenal glands Females: -ovaries males secrete 10x more testosterone than females

Functions responsible for the male reproductive organs: testes, penis, & prostate promotes increased muscle mass, bone mass, deepening of the voice, maturation of facial structures, & growth of body hair during puberty

Hypothalamus secretes GnRH Pituitary senses higher levels of GnRH and releases gonadotropin Testicles sense the higher levels of that & release testosterone Hypothalamus senses high levels of testosterone and decreases amount of GnRH Hypothalamus/Pituitary Negative Feedback System

Analogy Testosterone Testes Testes= produces testosterone

Hypogonadism When the body’s sex glands produce little to no hormones Complications: decreased sex drive, infertility, muscle loss/weakness, enlarged male breasts, decreased body hair growth

http://www.youtube.com/watch?v=qfq3XLqWj8A

Works Cited "Testosterone (male hormone) Information on MedicineNet.com." MedicineNet. 14 Feb. 2014 <http://www.medicinenet.com/script/main/art.asp?articlekey=51013>. "Storify." Storify. 14 Feb. 2014 <http://storify.com/johncandrews986/functions-of- testosterone>. "MEN’S SEXUAL FUNCTION,." Male Sexual Function, Andropause & Testosterone. 14 Feb. 2014 <http://www.mastersmensclinic.com/male_sexual_function.htm>. John, M.D. Tina M. St. "3 Roles of Testosterone." LIVESTRONG.COM. 23 June 2010. LIVESTRONG.COM. 14 Feb. 2014 <http://www.livestrong.com/article/161143-3-roles-of- testosterone/>.