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Changes to the penis , scrotum and testes These three organs enlarge by about 8 times by the age of 20 years. Anatomy and Physiology. Precocious puberty can occur as a result of abnormalities of the central nervous system that disrupt GnRH secretion, or it can be independent of GnRH secretion. Personal identity is also further developed. Testosterone produces the general distinguishing characteristics of the masculine body, causing changes to the sexual organs themselves as well as being responsible for secondary sexual characteristics.. Adolescent development. Are you a Health Professional. The larynx enlarges during puberty, initially resulting in a cracking voice, but gradually resolving into a deeper typically adult masculine voice. Changes to muscle development and growth Muscle mass increases. Testosterone stimulates the production of red blood cells , so that the quantity and proportion of red blood cells in males is higher than females.

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Description: However, FSH needs to be present in sufficient amounts for testosterone to have its effects. These then stimulate cells in the testes , causing them to enlarge — the first sign of male puberty. Hair already present on most other portions of the body, such as the legs, becomes more prolific. Avoiding stress over the festive season. Testosterone awakens the libido , or sex drive. ABP helps to raise testosterone levels in the testes. Textbook of Medical Physiology. Testosterone produces the general distinguishing characteristics of the masculine body, causing changes to the sexual organs themselves as well as being responsible for secondary sexual characteristics.. Testosterone also acts on the pelvis, making it narrower and longer, causing a funnel-like shape, as opposed to the broad oval-like shape of the female pelvis, which is better suited to childbearing. Puberty can be delayed by a number of different factors, including inadequate nutrition , chronic illness, severe levels of stress and problems with interactions between the brain and the reproductive system.
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