Anatomy: bones of pelvis + femur

Question 1

Features of the pelvic surface of the sacrum (3)

Answer 1

• concave shape
• transverse lines (sites of vertebral fusion)
• sacral promontory (sup aspect)

Question 2

Bony features of dorsal sacrum (6)

Answer 2

• Sup articulate facets
• surface is convex and rough
• median sacral crest (adapted spinous processes)
• sacral groove (immediately either side of median crest)
• lateral sacral crest (formed by trans procs)
• sacral hiatus (exit of sacral canal)
  Sacral cornua (articulate with coccygeal cornua)

Question 3

Features of lateral surface of sacrum

Answer 3

• auricular surface (SI articulation)
• sacral tuberosity (posterior)
• inferior lateral angle

Question 4

Coccyx:
Articulates with sacrum via _____
Pelvic surface is ___
Dorsal surface is ____

Answer 4

Coccygeal cornua
Smooth
Roughened

Question 5

Features of Ilium (8)

Answer 5

Iliac crest
Gluteal lines
ASIS
AIIS
PSIS
PIIS
Inferior iliac notch
Greater sciatic notch

Question 6

Features of pubis (5)

Answer 6

Tubercle 
Crest 
Inferior ramus 
Symphyseal surface
Pectineal line (pubic tubercle to arcuate line)

Question 7

Gluteal lines (3)

Answer 7

Anterior: 5 cm post and sup to ASIS to middle upper margin of greater sciatic notch (gsn )(follows curve of crest)
Posterior: iliac crest 5 cm anterior to PSIS, ends at post portion of upper border of GSN
Inferior: notch above AIIS to inferior border of GSN

Question 8

Features of ischium (6)

Answer 8

Ischial spine
Ischial tuberosity
Ischiopubic ramus
Lesser sciatic notch
Obturator foramen
Obturator membrane

Question 9

Features of acetabulum (3)

Answer 9

Acetabular notch
Auricular surface
Acetabular fossa

Question 10

Features of the proximal femur (5)

Answer 10

Head
Fovea of head
Neck (115/140 degrees)
Greater trochanter 
Lesser trochanter
Intertrochanteric line

Question 11

Features of upper third of shaft of femur (2)

Answer 11

Gluteal tuberosity

Pectineal/spiral line connects to med margin of lines aspera

Question 12

Features of mid and lower shaft of femur (4)

Answer 12

Linea aspera (biceps fem attachment)
Medial supracondylar line (add Magnus attachment)
Lat supracondyalr line
Popliteal surface (triangular depression between supracondylar lines)

Question 13

Features of distal end of femur (5)

Answer 13

• Condyles (med condyle projects more inf for gastroc attachment)
• Epicondyles (attachment for collateral ligs)
• Intercondylar fossa (depression b/w condyles)
• Patellar surface (projects more anteriorly on lateral aspect
• Adductor tubercle (sup aspect of med epicondyle)