Unit 9 - Abdomen and Pelvis Flashcards
Name this bone marking
Greater sciatic foramen (anterior view)
Only visible when ligaments (soft tissue) are in view.
Name this bone marking
Greater sciatic foramen (posterior view)
Only visible when ligaments (soft tissue) are in view
Name this bone marking
Lesser sciatic foramen (posterior-latero view)
Only visible when:
- Ligaments (soft tissue) are in view
- On certain angles: lateral and posterior views are best for viewing.
Name this bone marking
Pelvic Inlet
i.e. Superior pelvic aperture
Name this bone marking
Pelvic outlet
i.e. Inferior pelvic aperture
Identify this bone marking
What muscle attaches here?
Obturator foramen
Obturator internus
Identify this bone marking
sacrococcygeal notch
Name this structure
Pubis
*Bottom third of the acetabulum helps mark where pubis begins
Identify these 2 regions
Superior and inferior pubic ramus
Roughly trace out the outlines of the superior and inferior pubic ramus
Name this bone marking
Crest of the pubic bone
Crest: A raised or prominent part of the edge of a bone. Crests are often the sites where connective tissue attaches muscle to bone.
Roughly trace the crest of the pubic bone
Name this region
Body of the pubis
Roughly trace the body of the pubic bone
Name this bone marking
Iliac fossa
Fossa: A shallow depression in the bone surface.
Roughly trace the fossa of the ilium.
Also, state if this is a male or female pelvis.
Male pelvis
Ways to distinguish:
Female:
- Bones are lighter and thinner.
- Pelvic inlet shape: round/oval
- Lesser pelvic cavity is shorter and wider.
- Subpubic angle: greater in females (>80*)
- Pelvic outlet rounded & larger.
- Sacrum: wider, shorter, less curved.
Male:
- Bones thicker & heavier.
- Pelvic inlet heart-shaped.
- Lesser pelvic cavity is longer & narrower.
- Subpubic angle: less than 70*
- Pelvic outlet: smaller
Name this region
Auricular (articular) surface of the ilium
Identify the auricular (articular) surface of the ilium
Identify if this is a male or female pelvis
Female pelvis
Ways to distinguish:
Female:
- Bones are lighter and thinner.
- Pelvic inlet shape: round/oval
- Lesser pelvic cavity is shorter and wider.
- Subpubic angle: greater in females (>80*)
- Pelvic outlet rounded & larger.
- Sacrum: wider, shorter, less curved.
Male:
- Bones thicker & heavier.
- Pelvic inlet heart-shaped.
- Lesser pelvic cavity is longer & narrower.
- Subpubic angle: less than 70*
- Pelvic outlet: smaller
Roughly trace the location of the ala of the ilium
Ala = “wing”
What is this bone marking?
Greater sciatic notch (lateral view)
What is this bone marking?
Iliac crest (anterior view)
Crest: A raised or prominent part of the edge of a bone. Crests are often the sites where connective tissue attaches muscle to bone
What is this region?
Ala of the ilium
Roughly trace the iliac crest
Crest: A raised or prominent part of the edge of a bone. Crests are often the sites where connective tissue attaches muscle to bone
What is this region?
Body of the ilium
Roughly trace the body of the ilium
What is this bone marking?
Lesser sciatic notch
What is this?
Pubic symphysis (posterior view)
What is this?
Acetabulum (lateral view)
What region is this?
Body of the ischium
Roughly trace the body of the ischium
What region is this?
Ramus of ischium