Lab 14, Station 1: Pelvic Skeleton and Ligaments

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Station 1: Pelvic Skeleton and Ligaments

Complete anatomy

Hip bone

Pelvic Skeleton (Pelvic Girdle): Two Hip Bones + Sacrum

Hip bone (coxal bone) = Composed of three fused bones: Ilium + Ischium + Pubis
 

Features of pelvic skeleton as a whole:

Greater sciatic notch

Lesser sciatic notch

Obturator foramen (covered by a membrane in a living person)

Acetabulum

Ischiopubic ramus = inferior pubic ramus + ramus of ischium

Pubic arch

Pelvic inlet (superior pelvic aperture)

Pelvic brim

Pelvic outlet (inferior pelvic aperture)

Figure 1. Pelvic skeleton, anterior view.
Figure 1. Pelvic skeleton, anterior view.
Figure 2. Pelvic skeleton, superior view.
Figure 2. Pelvic skeleton, superior view.
Figure 3. Pelvic skeleton, posterior view.
Figure 3. Pelvic skeleton, posterior view.
Figure 4. Hip bone, anterior view.
Figure 4. Hip bone, anterior view.
Figure 5. Hip bone, medial view.
Figure 5. Hip bone, medial view.
Figure 6. Hip bone, lateral view.
Figure 6. Hip bone, lateral view.

Pubis

Pubic crest

Pubic tubercle

Superior pubic ramus

Inferior pubic ramus

Ischium

Ischial tuberosity

Ischial spine

Lesser sciatic notch

Ilium

Ala (“wing”)

Iliac crest

Iliac fossa

Anterior superior iliac spine

Anterior inferior iliac spine

Posterior superior iliac spine

Posterior inferior iliac spine

Sacrum—5 fused vertebrae

Complete anatomy

Sacrum

Pelvic surface

Anterior sacral foramina

Dorsal surface

Posterior sacral foramina

Sacral canal and Sacral hiatus

Promontory

Ala (left and right)

Coccyx (tail bone)—3 or 4 vertebrae fused into one or two pieces

Figure 7.
Figure 8.

Ligaments of the Pelvic Skeleton (Study on the Model)

Sacrotuberous ligament

Greater sciatic foramen (What are its boundaries?)

Sacrospinous ligament

Lesser sciatic foramen (What are its boundaries?)

Anterior and posterior sacroiliac ligaments (reinforce the sacroiliac joints)

Pubic symphysis (contains an interpubic disc made of cartilage)

Complete anatomy

Pelvic ligaments

Note

A “symphysis” is a cartilaginous joint. What type of cartilage is found in a symphysis? Where else have we encountered a symphysis in the body? [Think spine.]

Figure 8. Pelvic skeleton and ligaments.
Figure 8. Pelvic skeleton and ligaments.
Figure 9. Midsagittal view of right hemi-pelvis.
Figure 9. Midsagittal view of right hemi-pelvis.

Checklist, Lab #14

Checklist items at each of the five stations are indicated by checkboxes.

 

Station 6

Station 2

Table of Contents
Headshot of David Conley, PhD · Professor, Department of Translational Medicine & Physiology
David Conley
PhD · Professor, Department of Translational Medicine & Physiology
Office: PBS 41A
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Headshot of Shannon Helbling, PhD · Clinical Assistant Professor, Department of Translational Medicine & Physiology
Shannon Helbling
PhD · Clinical Assistant Professor, Department of Translational Medicine & Physiology
Office: PBS 41C
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