The first gland id the testis. The sweat glands grow after they get the increased testosterone.
The apocrine sweat glands are most concentrated in the axillary (armpit) and groin areas of the body. These glands are responsible for producing a thicker type of sweat that is odorless when first secreted but can develop a characteristic odor when broken down by bacteria on the skin.
holocrine,apocrine,merocrine are the terms used to designate the secretory cells (glands),depending on how these cells release their secretions. holocrine-release their secretions by lysis of the cell. apocrine-by budding off cell membrane into vesicles. merocrine-by exocytosis into ducts. ascending order of tissue damage during secretion merocrine Sweat glands are of 2 types Eccrine(a type of merocrine) and Apocrine. The term Apocrine sweat gland is a misnomer, since they dont secrete by apocrine mechanism, as earlier believed. Regarding differences, both types glands vary in terms of number,distribution,nature of secretions,activity,histology,innervation,etc I can now answer only a few things and the rest if left unanswered will be discussed by others. first eccrine, numerous, all over the body,clear,odorless secretions rich in Nacl and H20. next apocrine, limited,eyelids ,ear canal,alae of nose,armpits,breasts,pubic and perianal region,etc,odorless,oily,thick,opaque,secretions that gain odor after bacterial decomposition.
It depends on the maturity of your body. For example. those whose hormones start to develop at early age usually hit puberty before those that hormones didn't start to develop yet.
In males, puberty starts by the ages of 13. Some start before, some start after. First, the brain signals the glands to produce hormones to increase the testis size and make the male sexually mature.
Pubic hair begins to grow once you start puberty. It is usually one of the first signs to the individual that he or she has begun puberty. Puberty differs for everyone but on average begins at around 10 for girls and 11 for boys.
Tenderness is not a requirement. Especially after the first pregnancy. The glands of the breast will develop ... but at their own rate.
The onset of puberty, like hair growth and active oil glands.
If you're 13, chances are you still have a lot of growing to do. It is commonly held that males continue to develop for roughly six years from when the first signs of puberty are noticed. Unless you hit puberty at age six you should have nothing to worry about. ; )
Menarche (first period) is part of going through puberty. Menstruation only occurs when a person starts to ovulate, as menstruation occurs if an egg isn't fertilised. Puberty refers to the process of going from a child to a sexually mature adult, thus puberty has to start in order for you then to start menstruating as menstruation occurs only after you start to ovulate.
When you get your first period, it doesn't mean that puberty is over. It means that puberty has just started.
That would depend on the extent of the injury or birth defect that led to him having no arms in the first place. If he was missing everything below the elbow, but still had armpits, then yes, he would need to apply deodorant. If he has no armpit area, deodorant would be unnecessary because he wouldn't have the apocrine (odorous) sweat glands.
a female who is hit puberty but has not had her first litter is called Gilt