Female Pelvis & Fetal Head _ خلود Flashcards
what’re the types of the female pelvis ?
1- Gynaecoid pelvis
normal female pelvis. Its inlet is either slightly oval, with a greater transverse diameter and the plevic outlet is oval with anterioposterior diameter is greater than the transverse
2- Android pelvis
The android pelvis is a female pelvis with masculine features, including a wedge or heart shaped inlet caused The reduced pelvis outlet often causes problems during child birth.
3- Anthropoid pelvis
anthropoid pelvis is characterized by an oval shape with a greater anteroposterior diameter. the sacrum is usually straight resulting in deep non-obstructed pelvis.
4- Platypelloid pelvis
it has a kidney-shaped inlet and the pelvic cavity is usually shallow and may be narrow in the antero-posterior (front to back) diameter. The outlet is usually roomy. … Only the forces created by mother and baby during birth will allow the pelvis to open to its full potential
From which the pelvic bone consist of ?
1- hip bone ( ilium / ischaim /pubic bone )
2- sacrum
3-occyx
join by ANT by the pubic symphesis
POST by the sacroillic joint
what’s the false pelvis ?
its called Greater Pelvis or pelvis major
what’s the boundaries of the false pelvis ?
Anteriorly:- abdominal wall
Posteriorly:- vertebrae L5, S1
Postero-laterally:- iliac fossa
what’s the true pelvis ?
its called Lesser Pelvis (pelvis minor)
what’re the parts of the true pelvis ?
inlet (brim)
cavity
outlet
what’re the boundaries of the true pelvis ?
1- promentary of sacrum 2- alla 3- sacroillic joint 4-illiopectinla line 5- illiopectinla emenance 6- upper border of the sup pubic ramus 7-pubic crest and pubic tubercle 8- upper border of pubic symphesis
what’re the contents and the boundaries of the cavity of the true pelvis?
it’s consist of the hip bone( ilium / ischaim /pubic bone )
and the scarum
with the pelvic viscera as the RECTUM URINARY BLADDER UTERUS OVERY
what’re the boindaries of the outlet
it’s dimond in shape
it’s consist of the :
1- cocyx (5th segment of the sacrum)
2-sacrospinous and scarotuberus ligments
3- isheal tuberosity and ishial spine
4-the lower border of the inf ramus of the pubic bone
5- lower border of the symphesis pubic
what’re the diameters of the pelvic inlet ?
A-P diameter:-it is the distance between mid point of sacral promontory to the mid point of upper border of pubic symphysis.
Transverse diameter:- distance between the iliopectineal lines.
Oblique diameter:- distance between one sacro –iliac joint to opposite ilio-pubic eminence.
in inlet the transverse diameter is larger than the AP diameter (11X13) while the oblique diameter is 12
while the pelvic outlet it has the AP diameter greater than the transverse so than the fetus rotate inside the cavity (11x13)
the cavity diameter is (12.5X12.5)
what’s the Occiput ?
is the occipital bone/external occipital protuberance
Sinciput ?
is the forehead region of fetal head.
Parietal eminences ?
are the eminences of parietal bone on either side.
Mentum ?
chin
Vertical point?
center of sagittal suture
Frontal point ?
root of nose
Sub occiput?
the junction fetal neck and Occiput
Sub mentum?
the junction between neck and chin
Bi parietal ?
the transverse distance between two parietal eminences.
Bi temporal ?
distance between two lower end of coronal suture
Sagittal suture?
This lies in between two parietal bone
Coronal suture?
between the frontal and parietal bone on either side
frontal suture ?
This lies in between two frontal bone.
Lambdoid suture?
It lies in between the parietal and occipital bone on either side