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Labour Delivery Model
- This model consists of six development phase and each part shows a state of prenatal cervix and birth canal. The whole model demonstration the relations between the scope of expanding of the orifice of cervix and the range of cervical tunnels , as well as the relation between the position of the head of fetus and the squre of ischial spine.
- The orifice of cervix has no expending and the cervical tunnels haven’t disappeared at all. The positional relation between the head of fetus and the squre of ischail spine is -5.
- The orifice of cervix has expended 2cm bigger and cervical tunnel disappear 50% . The positional relation between head of fetus and the squre of ischail spine is -4.
- The orifice of cervix has expanded 4cm bigger and cervical tunnel disappear absolutely.The positional relation between the head of fetus and the squre of ischile spine is -3.
- The orifice and cervix has expended 5cm bigger and the cervical tunnels disappear absolutely. The positional relation between the head of the fetus and the square of ischial spine is 0.
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