Puberty Flashcards
Puberty is the process of _______________ and _____________________ which changes a child into an adult.
reproductive and sexual development and maturation
Puberty is the sequence of events by which a child becomes a young adult, characterized by the beginning of ___________, ___________ , secretion of ____________, development of ________________ and _____________
gonadotrophin secretion
gametogenesis
gonadal hormones
secondary sexual characteristics and reproductive functions.
Puberty commonly requires approximately _________ years from onset to completion.
five
Puberty in Girls: Occurs between age ____-____ years, and is largely completed by age ——- years
8-13
16
Sequence of events
5 events that occur at Puberty
Listtt
5 events that occur at Puberty
Breast development
Growth spurt
Pubic hair growth
Axillary hair growth
Menarche
Terminology
1. Thelarche: __________
- Pubarche: ____________
- Adrenarche: _____________
- Menarche: ________________
the appearance of breast tissue
the appearance of pubic hair
activation of the adrenal glands
the first menstrual bleeding
___________ : the appearance of breast tissue
Thelarche
_____________ : the appearance of pubic hair
Pubarche
______________ : activation of the adrenal glands
Adrenarche
____________ : the first menstrual bleeding
Menarche
The onset of puberty is signalled by the _____________________________.
secretion of pulses of gonadotrophin releasing hormone (GnRH)
___________________ (H-P-O) axis.
Hypothalamo-pituitary-ovarian
Physiology of puberty
Around the age 8 years – there is a gradual change in the production of ______ and subsequently ______ – initially _________ then ________[. Increasing frequency & Amplitude
GnRH; FSH
nocturnal; daytime
FSH acts mainly on the ________ to produce _________ hormones.
ovaries
gonadal
The ovaries produces ____________?
estrogen, progesterone and androgens
Functions
Estrogen stimulates mainly the —————————————
Progesterone stimulate ________________ and ______________
Androgen production stimulate __________________
Increased GH secretion contribute to the ___________________
breast & reproductive organs
glandular development of the breast and secretory endometrium
pubic & axillary hair growth.
rapid somatic growth
Activation of the adrenal glands leads to the production of adrenal androgens ___________________ and ________________ in a process called adrenarche -
dehydroepiandrosterone (DHEA) and DHEA sulfate
Breast development: TANNER CLASSIFICATION
Stage 1 : _________________
Stage 2 Elevation of ___________ as a _________, increased _________(Breast bud stage)
Stage 3 Further ___________ without ______________
Stage 4 Secondary mound of _________________ above breast
Stage 5 __________ of ______ to ———- of breast
Elevation of papillae (Prepubertal)
breast and papillae ; small mound; areolar diameter
enlargement; separation of breast and areola
Secondary mound ; areola and papilla
Recession ; areola; contour
Pubic hair growth: tanner classification
Stage 1 ___________ (Prepubertal)
Stage 2 ____,_______,__________ hair mainly along ___________
Stage 3 ______,_______,_______ sparsely spread over mons
Stage 4 _____-type, ________ hair but ____________ ________
Stage 5 ________-type spread in quantity and distribution
Stage 1 No pubic hair (Prepubertal)
Stage 2 Sparse, long, slightly pigmented hair mainly along Labia majora
Stage 3 Dark, coarse, curled hair sparsely spread over mons
Stage 4 Adult-type, abundant hair but limited to the mons
Stage 5 Adult-type spread in quantity and distribution
Precocious puberty is defined as the ____________________________
Delayed puberty occurs when there is ______________________________
onset of puberty before the age of eight in girls.
no sign of secondary sexual characteristics by the age of 14 years.
