At all-around week 7 in utero, the intercourse-associated gene on the Y chromosome initiates the event of your testicles in male infants. The testicles develop testosterone.

层次（鞘膜 · 白膜 · 血管膜） · 附件 · 纵隔 · 小叶 · 隔片 · 莱迪希细胞 · 塞尔托利氏细胞 · 血睾屏障

Decline of testosterone output with age has resulted in interest in androgen replacement therapy.[fifty five] It truly is unclear if using testosterone for lower amounts due to getting old is beneficial or destructive.[fifty six]

Each individual mammalian species examined demonstrated a marked rise in a male's testosterone degree upon encountering a novel

睪酮是經由血液中的性激素結合球蛋白運送至身體的目標組織。男性生殖腺內的塞爾托利氏細胞需要睪酮來生成精子。

在其他脊索动物的组织内也会有雄激素受体，而雄性及雌性对睾酮的反应也相当一致。在出生前雄性与雌性的睾酮剂量的差异，会导致在青春期或整个生命上的生物差异。

层次（皮肤 · 肉膜 · 精索外筋膜 · 提睾肌／提睾肌筋膜 · 精索内筋膜 · 会阴缝）

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精囊 · 精腺排泄管 · 攝護腺（尿道嵴／精阜／攝護腺小囊／射精管 · 攝護腺窦／攝護腺小管） · 尿道球腺

Completion of bone maturation and termination of growth. This occurs indirectly by using estradiol metabolites and that's why extra steadily in Adult males than Women of all ages.

Testosterone is the principal male sexual intercourse hormone and androgen in males.[3] In individuals, testosterone plays a vital function in the event of male reproductive tissues like testicles and prostate, and selling secondary sexual properties such as increased muscle and bone mass, and the growth of human body hair. It truly is related to enhanced aggression, Half Off intercourse push, dominance, courtship Show, and an array of behavioral attributes.

Testosterone is A vital Section of reproductive wellbeing and General well being for persons assigned male at birth. It’s organic for testosterone degrees to vary dependant upon your age and In general wellbeing.

[70] This response engages penile reflexes (for example erection and ejaculation) that aid in sperm Levels of competition when more than one male is existing in mating encounters, allowing for for more production of thriving sperm and a better possibility of replica.

Artificial testosterone is the principle drug of masculinizing hormone therapy, which happens to be a gender-affirming therapy that somebody AFAB employs to produce the secondary sex characteristics associated with remaining assigned male at start (AMAB).