Question

Define me the meaning of puberty?

How does it occur?

How it acts on our genetic growth?

Answer 1

The condition of being or the period of becoming first capable of reproducing sexually that is brought on by the production of sex hormones and the maturing of the reproductive organs (such as the testes and ovaries), development of secondary sex characteristics (such as male facial hair growth and female breast development), and in humans and the higher primates by the first occurrence of menstruation in the female is called puberty

The age at which puberty occurs often construed legally as 14 in boys and 12 in girls



2)
The trigger for puberty in both boys and girls is the production of 'gonadotrophin releasing hormone' (GnRH) from a part of the brain called the hypothalamus. This hormone stimulates the pituitary gland to release two hormones, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). These hormones travel through the blood to the testicles and ovaries and switch on the development procedure which will lead to sexual maturity


3)Changes in stature and the dimensions of the body

Adolescent growth spurt - increase in height and weight

The speed of the spurt is dramatic.

Peak height velocity for males is approximately 4.1 inches per year; for females it is approximately 3.5 inches per year.

Growth spurt occurs, on average, two years earlier in females than males.

One indication of the end of pubertal growth is the closing (hardening) of the long bones in the body.

Bones become much harder after the growth spurt. Those of African-Americans are harder than those of Caucasians, contributing to the fact that Caucasians are more likely to experience osteoporosis and bone fractures later in life.

Much of the height gain comes from increase in torso length.

The sequence of growth begins in the extremities (hands, feet) and moves inward, with the torso growing in size last.

The different timing in the growth of body parts is referred to as asynchronicity in growth.

Proportionately, males tend to gain more muscle weight, and females more body fat, over the course of puberty.

The difference in muscle-to-body weight proportions tends to allow males to outperform females in athletic events.

The difference in fat-to-body weight proportions tends to contribute to females' feelings of being overweight.

Females who mature early, begin dating early, and come from comparatively affluent families tend to experience less satisfaction with their body image.

Increases also occur in the size and capacity of the heart and lungs, facilitating better athletic performance.

While males typically achieve higher athletic performance after puberty, females are socialized away from physical activity.

Sexual maturation:

Secondary sexual characteristics, which are described by specific elements in the Tanner stages, occur as teens develop the external appearances of a man or a woman.
Sexual maturation in boys
The sequence of physical changes for males typically begins with changes in the scrotum, testicles, and pubic hair, followed by a growth spurt in height and growth of the penis, followed by growth of facial hair, followed by changes in the vocal chords.
Changes in the skin and production of sweat and oils produces the acne experienced by many adolescents.
Changes in the primary sexual characteristics (changes to the internal organs and processes necessary for reproduction) influence the tendency for the first ejaculation of seminal fluid, which tends to occur about one year after the acceleration of penis growth.
Sexual maturation in girls
The sequence of physical changes for females typically begins with changes in the breasts and pubic hair, but these are accompanied by a growth spurt in height. Menarche (the first menstrual cycle) is typically an event that occurs toward the end of pubertal changes. Regular ovulation tends to follow menarche by approximately two years.