| D007743 |
Labor, Obstetric |
The repetitive uterine contraction during childbirth which is associated with the progressive dilation of the uterine cervix (CERVIX UTERI). Successful labor results in the expulsion of the FETUS and PLACENTA. Obstetric labor can be spontaneous or induced (LABOR, INDUCED). |
Obstetric Labor |
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| D007746 |
Labor Presentation |
The position or orientation of the FETUS at near term or during OBSTETRIC LABOR, determined by its relation to the SPINE of the mother and the birth canal. The normal position is a vertical, cephalic presentation with the fetal vertex flexed on the NECK. |
Fetal Presentation,Presentation, Fetal,Fetal Malpresentation,Fetal Malpresentations,Malpresentation, Fetal,Presentation, Labor |
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| D009119 |
Muscle Contraction |
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments. |
Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions |
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| D010121 |
Oxytocin |
A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION. |
Ocytocin,Pitocin,Syntocinon |
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| D010298 |
Parity |
The number of offspring a female has borne. It is contrasted with GRAVIDITY, which refers to the number of pregnancies, regardless of outcome. |
Multiparity,Nulliparity,Primiparity,Parity Progression Ratio,Parity Progression Ratios,Ratio, Parity Progression,Ratios, Parity Progression |
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| D011247 |
Pregnancy |
The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. |
Gestation,Pregnancies |
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| D011312 |
Pressure |
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Pressures |
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| D001724 |
Birth Weight |
The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms. |
Birthweight,Birth Weights,Birthweights,Weight, Birth,Weights, Birth |
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| D002584 |
Cervix Uteri |
The neck portion of the UTERUS between the lower isthmus and the VAGINA forming the cervical canal. |
Cervical Canal of the Uterus,Cervical Canal, Uterine,Ectocervix,Endocervical Canal,Endocervix,External Os Cervix,External Os of the Cervix,Uterine Cervical Canal,Cervix,Cervixes,Uterine Cervix,Canal, Endocervical,Canal, Uterine Cervical,Cervix, External Os,Cervix, Uterine,Endocervical Canals,Uterine Cervical Canals |
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| D004106 |
Dilatation |
The act of dilating. |
Dilation,Dilatations,Dilations |
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