How to plan your life
Adolescence and Adulthood
Childhood is a time of nurture and protection, which gives place to puberty or adolescence, thence to adult life.
Adolescence is a transition period when profound physiological changes occur in the human body that leads to the appearance of male and female secondary sex-characteristics.
In the human body, series of small areas of tissue with highly specialized function (endocrine glands) are scattered all-over. These glands discharge their secretions directly into the blood stream. Their shape and functions very, it is the changes in the activities of these glands that are mainly responsible for the phenomena of puberty or adolescence.
Male: the male sex mechanism after been dormant in the body for thirteen years now begins to function slowly. The penis and the scrotum (two small oval bodies called the testes) are the two principal organs of reproduction. The scrotum, at the age of puberty begins to make a chemical which is passed into the blood stream thence carried by the blood to all parts of the body.
Thus, this chemical is responsible for the bodily changes that now occur (the development of muscles, the growth of hair, and the deepening of the voice). The male cell of reproduction called the sperms is also produced by the testes. Once the body begins to produce sperms, it continues to do so until late in life. The sperms pass into a tube called the sperm duct which curves around so that it joins on to the tube leading from the bladder to the penis. This latter tube is called the urethra, and it has two functions. It conducts to the penis the waste water which accumulates in the bladder, and it also conducts the sperms which pass into it through the sperm duct when they are needed.
Female: the controlling force of the female body or “leader of the orchestra” as it has been aptly named, is the pituitary gland (a mass of nerve tissue about the size of a walnut at the base of the brain).
As adolescence is established and the glandular system matures, a hormone or chemical messenger is secreted by the pituitary gland. This is carried in the blood stream to the ovaries, in order to stimulate them to activity, and a series of changes then occurs in the body which result in the development of female secondary sex-characteristics (increase in the size of the breasts, rounding of the hips, growth of pubic and axillary hair, and in the phenomenon of menstruation). The menstruation is controlled in a rhythmical way. It is a recurring effort on the part of the body to prepare for the beginning of a new life and for its nesting and development.