Podcast
Questions and Answers
Which structural feature primarily defines the boundary between the true and false pelvis?
Which structural feature primarily defines the boundary between the true and false pelvis?
- The ischial tuberosity
- The pelvic inlet (correct)
- The iliac crest
- The symphysis pubis
What functional implication arises directly from the connection between the sacrotuberous and sacrospinous ligaments?
What functional implication arises directly from the connection between the sacrotuberous and sacrospinous ligaments?
- Enhancement of iliac crest flexibility during trunk rotation.
- Conversion of sciatic notches into foramina for neurovascular passage. (correct)
- Stabilization of the pubic symphysis during ambulation.
- Limitation of hip abduction range of motion.
In a lateral view of the pelvis, what bony landmark is located superior to the acetabulum?
In a lateral view of the pelvis, what bony landmark is located superior to the acetabulum?
- Ischial tuberosity
- Iliac crest (correct)
- Ischial spine
- Pubic crest
What is the primary functional significance of the obturator foramen being largely covered by the obturator membrane?
What is the primary functional significance of the obturator foramen being largely covered by the obturator membrane?
Which of the following is NOT a component of the os coxa?
Which of the following is NOT a component of the os coxa?
What is the key role of the pubic symphysis in pelvic function?
What is the key role of the pubic symphysis in pelvic function?
Considering the anatomical relationships within the pelvis, what structures are directly connected by the inguinal ligament?
Considering the anatomical relationships within the pelvis, what structures are directly connected by the inguinal ligament?
A fracture of the ischial tuberosity could directly impair the function of which of the following?
A fracture of the ischial tuberosity could directly impair the function of which of the following?
What is the superior border of the ilium called?
What is the superior border of the ilium called?
If the sacrospinous ligament is cut, what foramina enlarges?
If the sacrospinous ligament is cut, what foramina enlarges?
Flashcards
Pelvis
Pelvis
The bony structure at the base of the spine, connecting the trunk to the lower limbs.
Pelvic Girdle Components
Pelvic Girdle Components
Formed by the sacrum and two os coxae (innominate bones).
Os Coxa (Innominate Bone) Parts
Os Coxa (Innominate Bone) Parts
The ilium, ischium, and pubis.
Sacroiliac Joint
Sacroiliac Joint
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Iliac Crest
Iliac Crest
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Iliac Fossa
Iliac Fossa
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Obturator Foramen
Obturator Foramen
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False Pelvis
False Pelvis
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True Pelvis
True Pelvis
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Greater Sciatic Notch
Greater Sciatic Notch
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Study Notes
- This lecture will cover the osteology of the pelvis
- Human Anatomy ANTH/EEB/NURS 250 Lecture 4.1
Pelvis Osteology Overview
- The pelvis is also known as the pelvic girdle
- The lumbar vertebrae sit above the pelvis
Pelvis Osteology
- The pelvis consists of the sacrum and the right and left os coxa, also known as the innominate bone
Portions of the Os Coxa
- The os coxa is composed of three bones: the ilium, pubis, and ischium
Pelvis Joints
- The sacroiliac joint connects the sacrum to the ilium
- The pubic symphysis is the joint between the two pubic bones
Pelvis
- Key features include the iliac crest, iliac fossa, anterior superior iliac spine, anterior inferior iliac spine, pelvic inlet, pubic symphysis, acetabulum, ischium and pubis
Pelvis (Female)
- The pelvis can be divided into the false pelvis and the true pelvis
Pelvis (Male)
- The pelvis can be divided into the false pelvis and the true pelvis
Lateral Perspective
- Key features include
- The greater and lesser sciatic notch, the acetabulum, and the obturator foramen
- The iliac crest, ischial spine, ischial tuberosity, and pubic crest
Posterior Perspective
- Key features include the iliac crest, greater sciatic notch, ischial spine, ischial tuberosity and coccyx
Ligaments (Posterior)
- Key ligaments and foramen include
- The greater and lesser sciatic foramen
- The sacrotuberous and sacrospinous ligaments
Ligaments (Anterior)
- Key ligaments involved are the inguinal, sacrotuberous, and sacrospinous ligaments
Ligaments (Sagittal Section)
- Key ligaments and foramen include
- The greater and lesser sciatic foramen
- The sacrotuberous and sacrospinous ligaments
- The obturator membrane
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Description
Lecture on the osteology of the pelvis, also known as the pelvic girdle, including the bones, joints, and key features from a lateral perspective. The pelvis consists of the sacrum, right and left os coxa, ilium, pubis, and ischium. Key features include the iliac crest, pelvic inlet, pubic symphysis, and acetabulum.
