L4.1: Puberty

• Definition of PUBERTY

  ● Involves the series of changes that occur among individuals which causes them to be ready for reproduction.

  ○ Prepare individuals not only for childbirth but the entire body, especially gametes.

  ● A Physiologic process that occurs during adolescence through the influence of sex hormones both on boys and girls.

  ○ Influence - upsurge - increase
• Secondary Sex Characteristics in Males

  ● Penis and Testes

  Size

  ○ Growth and pigmentation of scrotum

  ● body, facial, pubic hair

  ● changes in body shape

  ● voice change

  ● body odor and acne

  ● nocturnal emissions

  ○ an involuntary discharge of semen during sleep often accompanied by an erotic dream
• Secondary Sex Characteristics in Females

  ● breast development

  ● body and pubic hair

  ● changes in body shape

  ● body odor and acne

  ● onset of menstruation (menarche)
• Puberty

  The series of changes that occur among individuals which causes them to be ready for reproduction.

  ○ Physiologic changes

  ○ Manifestations of puberty are more on the physical

  attributes.

  ○ To prepare the gametes for fertilization.

  ○ Readies an individual for reproduction.
• Puberty

  ● Takes place during adolescence through the influence of sex hormones both on boys and girls.
• Upsurge of Sex Hormones

  ○ increase of the secretion of sex hormones, causing massive influences and physical changes.

  ○ Males: testosterone

  ○ Females: estrogen and progesterone
• Secondary Sex Characteristics

  ○ Refers to physical characteristics that are influenced by sex steroid hormones and have supporting roles in reproductive function.