Test #4 - Class 6: The Appendicular Skeleton: Pelvic Girdle/Lower Extremity; Class 7: Palpation of Upper and Lower Extremities Flashcards
How many bones make up the Pelvic Girdle?
1 pair (2 bones)
What are the 2 bones that make up the Pelvic Girdle?
(2) The coxal bones
Each coxal bone is made up of how many regions?
3 fused regions
What are the 3 fused regions of the coxal bone?
- Ilium; 2. Ischium; and 3. Pubis
Describe the location of each region of the coxal bone.
- Ilium (superior and largest region); 2. Ischium (inferior & posterior region); and 3. Pubis (inferior and anterior region)
How many bone markings on the coxal bone proper?
2 bone markings
What are the 2 bone markings on the coxal bone proper?
- Acetabulum; and 2. Obturator foramen
Coxal Bone Marking: Acetabulum
The region of the coxal bone where the ilium, ischium and pubis meet. It forms 1/2 of the hip joint. It’s on the lateral coxal bone.
Coxal Bone Marking: Obturator foramen
Largest foramen in the body. It serves as a passageway for blood vessels and nerves heading to the lower extremity (LE).
How many bone markings on the Ilium region of the coxal bone?
5 bone markings
What are the 5 bone markings on the Ilium region of the coxal bone?
- Iliac crest; 2. Anterior Superior Iliac Spine (ASIS); 3. Anterior Inferior Iliac Spine (AIIS); 4. Posterior Superior Iliac Spine (PSIS); and 5. Greater Sciatic Notch
Ilium Bone Marking: Iliac Crest
Runs from the Anterior to the Posterior Superior Iliac Spine (ASIS to PSIS).
Ilium Bone Marking: Anterior Superior Iliac Spine (ASIS)
“Front bump”; Anterior projection on the iliam.
Ilium Bone Marking: Anterior Inferior Iliac Spine (AIIS)
Inferior about 1” and slightly medial to the ASIS; in the crease when seated
Ilium Bone Marking: Posterior Superior Iliac Spine (PSIS)
Posterior projection on the ilium. The posterior border of the iliac crest. Where the dimples on the back are located on some people.
Ilium Bone Marking: Greater Sciatic Notch
On the posterior, inferior ilium.
How many bone markings on the Ischium region of the coxal bone?
2 bone markings
What are the 2 bone markings on the Ischium region of the coxal bone?
- Ischial Tuberosity; and 2. Ischial Spine
Ischium Bone Marking: Ischial Tuberosity
A large roughened projection on the posterior, inferior ischium. Also known as the “sits” bone.
Ischium Bone Marking: Ischial Spine
A sharp, pointy projection on the inferior aspect of the greater sciatic notch.
How many bone markings on the Pubis region of the coxal bone?
2 bone markings
What are the 2 bone markings on the Pubis region of the coxal bone?
- Superior ramus; and 2. Inferior ramus = Superior and Inferior Rami
Pubis Bone Marking: Superior Ramus
An armlike section of bone on the superior, medial pubis.
Pubis Bone Marking: Inferior Ramus
An armlike section of bone on the inferior, medial pubis.
What bones make up the Pelvic Bowl?
- The 2 coxal bones; 2. the sacrum; and 3. the coccyx.
Are there differences between the male and female pelvis?
Yes
Pelvis Differences: Male
- Larger, more prominent bone markings; 2. Iliac crest is higher; 3. Pelvic bowl is narrow and deep; 4. Ischial tuberosities are closer together; and 5. Coccyx points down or inward
Pelvis Differences: Female
- Smaller and less prominent bone markings; 2. Iliac crest is lower; 3. Pelvic bowl is wider and shallow; 4. Ischial tuberosities are further apart; and 5. Coccyx points down or outward
How many major joints of the Pelvis?
3 major joints
What are the 3 major joints of the Pelvis?
- Hip joint; 2. Sacroiliac joint (SI joint); and 3. Pubic symphysis
What makes up the hip joint?
Acetabulum of the coxal bone + head of the femur
What makes up the sacroiliac joint (SI joint)?
Ilium region of the coxal bone + sacrum of the vertebral column
What makes up the pubic symphysis?
Where the 2 pubis regions of the coxal bones meet
How many bones in the Lower Extremity (LE)?
30 pairs (or 60 total)
LE: Femur
(2) Thigh bone - Largest and strongest bone in the body
How many bone markings on the femur?
9 bone markings
What are the 9 bone markings on the femur?
- Head; 2. Greater Trochanter; 3. Lesser Trochanter; 4. Linea aspera; 5. Gluteal tuberosity; 6. Medial epicondyle; 7. Lateral epicondyle; 8. Medial condyle; and 9. Lateral condyle
Femur: Head
Proximal region covered with articular cartilage forming 1/2 of the hip joint.
Femur: Greater Trochanter
Large projection on the proximal, lateral femur
Femur: Lesser Trochanter
Smaller projection on the proximal, medial femur
Femur: Linea aspera
Line running down the posterior femur.
Femur: Gluteal Tuberosity
The lateral line off the linea aspera at the proximal end. It also lies just distal and posterior to the greater trochanter. Lateral fork of linea aspera (proximal).
Femur: Medial epicondyle
Raised region above the medial condyle (which is in the knee joint)
Femur: Lateral epicondyle
Raised region above the lateral condyle (which is in the knee joint)
Femur: Medial condyle
Rounded projection on the distal, medial femur. Together with lateral condyle, forms 1/2 of the knee joint.