birth control

control /con·trol/ (kon-trōl´)

1. the governing or limitation of certain objects or events.

2. a standard against which experimental observations may be evaluated.

3. the conscious restraint, regulation, or suppression of impulses, instincts, and affects.

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aversive control  in behavior therapy, the use of unpleasant stimuli to change undesirable behavior.

birth control  deliberate limitation of childbearing by measures to control fertility and to prevent conception.

motor control  the systematic transmission of impulses from the motor cortex to motor units, resulting in coordinated muscular contractions.

stimulus control  any influence of the environment on behavior.

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birth control

n.

Voluntary limitation or control of the number of children conceived, especially by planned use of contraceptive techniques.

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birth control.

See contraception.

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birth control,

n 1. a regimen of one or more actions, devices, or medications followed in order to deliberately prevent or reduce the likelihood of a woman becoming pregnant or giving birth.
2. oral contraceptives, usually a mixture of a steroid having progestational activity and an estrogen.

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birth

a coming into being; the act or process of being born. See also parturition.

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birth canal

the canal through which the fetus passes in birth; comprising the uterus, cervix, vagina and vulva.

birth cohort

see cohort.

birth control

a term rarely used in dealing with animals. Instead see population control, contraception.

birth defects

see congenital defects.

birth difficulties

dystocia.

birth injury

occurs to the fetus during birth. Includes rib fracture and meningeal hemorrhage.

birth interval

the interval between succeeding parturitions. See also calving interval.

multiple birth

the birth of two or more offspring produced in the same gestation period.

birth order

the chronological order of births in a multiple birth. May have significance in causing stillbirths if the intervals between births are prolonged because of inertia.

premature birth

expulsion of the fetus from the uterus before termination of the normal gestation period, but after independent existence has become a possibility. In humans prematurity is defined as a pregnancy of less than 37 weeks in a pregnancy normally lasting 40 weeks.

birth process

comprises maturation of the fetus, relaxation of the bony pelvis and associated ligaments, softening and relaxation of the cervix, vagina, vulva and perineum, correct disposition of the fetus, contractions of the uterine myometrium and finally the only component under voluntary control, contraction of the abdominal muscles.

birth rate

the number of births during one year for the total population (crude birth rate), for the female population (refined birth rate), or for the female population of reproductive age (true birth rate). Not a term much used with reference to animals. See calving, lambing rate.

birth size

stature, including height at withers, crown to tail head length at birth.

birth weight

the weight at birth. A significant determinant of survival in any species and of the occurrence of dystocia. See also prolonged gestation.

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Patient discussion about birth control.

Q. BIRTH CONTROL how many types are there?

A. there are many types,pill,shot,condom,marina,sponge,tubes tierd,vastectomy,with draw,no sex,etc.

Q. Is there any natural supplement for birth control pills?? there has to be!!! I'm tired of puting chimicals in my body.. maybe something from chinese medicine?

A. any natural material when coming in large quantities can damage. sex hormones are a natural thing. chines medicine does not have something more "natural" then the body regular hormones.

Q. can a woman ger pregnant if she misses a few birth control pills? my girlfriend missed 2 this month and now her period is a bit late. should I be woried?

A. Even on birth control it is possible to get pregnant. Birth control pills are not always 100% perfect in preventing pregnancy. Has she ever missed any pills in the past? Her body may be trying to re-adjust and that can be a reason why she is "late."