Page 15 - 2023 Elctronic Book (3) Normal Labor_Neat

Figure 2 the pelvic canal seen from the side, with the body facing to the

left.

▪ II-Pelvic Joints:

1-The symphysis pubis (one joint) is

midline cartilaginous joint uniting the ramus of the left and right pubic bones.

2-The sacro-iliac joints (two joints):

Which articulates with the fifth sacral segment.

3-The sacro coccygeal joint (one joint):

Is formed when the base of the coccyx articulates with the tip of the sacrum.

It permits the coccyx to be deflected backwards during the birth of the fetal head.

 III-Pelvic ligaments:

▪ Function of the ligaments is to connect the pelvic joint together strongely.

▪ Types of ligament in the pelvic are:

A) Sacroiliac Ligament: which connect the ilium with the sacrum.

B) Sacro-coccygeal: which uniting the sacrum &coccyx.

C) Inter- pubic Ligament: between two pubic bone

D) Sacro-spinous Ligament: from sacrum to ischial spines

E) Sacro-tuberous Ligament: from sacrum to ischial tuberosity.

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