Podcast
Questions and Answers
Which tarsal bone has 6 surfaces?
Which tarsal bone has 6 surfaces?
- Cuboid
- Calcaneus (correct)
- Cuneiform
- Navicular
Which tarsal bone joins the talus and forms the heel?
Which tarsal bone joins the talus and forms the heel?
- Calcaneus (correct)
- Cuboid
- Cuneiform
- Navicular
Which metatarsal bone is the shortest and thickest?
Which metatarsal bone is the shortest and thickest?
- Metatarsal IV
- Metatarsal II
- Metatarsal I (correct)
- Metatarsal III
Which bone has a medial, lateral, and intermedium cuneiform?
Which bone has a medial, lateral, and intermedium cuneiform?
How many bones are present in the digital region of the foot?
How many bones are present in the digital region of the foot?
Which bone in the leg region has a tibial tuberosity for muscle attachment?
Which bone in the leg region has a tibial tuberosity for muscle attachment?
Where is the fibular notch located?
Where is the fibular notch located?
Which bone has an articular surface for the fibula?
Which bone has an articular surface for the fibula?
Where is the medial malleolus located?
Where is the medial malleolus located?
Which bone has an inferior articular surface?
Which bone has an inferior articular surface?
What is the function of the trochlea of talus?
What is the function of the trochlea of talus?
Which bone unifies at 16-18 years of age?
Which bone unifies at 16-18 years of age?
Which bones make up the acetabulum?
Which bones make up the acetabulum?
Which part of the ilium is considered the true pelvis?
Which part of the ilium is considered the true pelvis?
What is the function of the acetabular fossa?
What is the function of the acetabular fossa?
Which structure is not part of the gluteal region?
Which structure is not part of the gluteal region?
Which bone features the Greater and Lesser Trochanters?
Which bone features the Greater and Lesser Trochanters?
Where is the Pecten of the Pubis located?
Where is the Pecten of the Pubis located?
What is the function of the Gluteal Tuberosity on the Femur?
What is the function of the Gluteal Tuberosity on the Femur?
Where is the Fovea for the Ligament of the Head located?
Where is the Fovea for the Ligament of the Head located?
What structure is found between the Pubis and Ischium?
What structure is found between the Pubis and Ischium?
Which bone has a Patellar Surface?
Which bone has a Patellar Surface?
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Study Notes
Bones of Lower Extremity
Gluteal Region
- Sacrum
- Coccyx
- Hip (pelvic, coxal, innominate) bone
- Ilium
- Ischium
- Pubis
- Hip bone unifies at 16-18 years
- Acetabulum: 2/5 ilium, 2/5 ischium, 1/5 pubis
- Acetabular fossa
- Lunate surface
- Acetabular notch
Ilium
- Body: true pelvis
- Ala (wing): false pelvis
- Arcuate line
- Iliac crest
- Inner, intermediate, outer lips
- Iliac tubercle
- Anterior superior iliac spine
- Anterior inferior iliac spine
- Posterior superior iliac spine
- Posterior inferior iliac spine
- Gluteal surface
- Anterior, inferior, and posterior gluteal lines
- Iliac surface
- Iliac fossa
- Sacropelvic surface
- Auricular surface
- Iliac tuberosity
Ischium
- Body
- Ramus
- Posterior obturator tubercle
- Ischial spine
- Greater and lesser sciatic notches
- Ischio-pubic ramus
- Ischial tuberosity
Pubis
- Body
- Superior ramus
- Inferior ramus
- Pecten of pubic bone
- Pubic tubercle
- Pubic crest
- Iliopubic eminence
- Obturator crest
- Obturator groove
- Pubic symphysis
- Symphysial surface
- Foramen obturatum
- Between pubis and ischium
- Obturator membrane
- Anterior and posterior obturator tubercles
- Obturator canal
- Obturator a, v, and n
Thigh Region
- Femur (1/4 of height)
- Patella
Femur
- Body
- 2 ends
- Head
- Fovea for ligament of head
- Neck
- Greater and lesser trochanters
- Trochanteric fossa
- Intertrochanteric crest and line
- Linea aspera (rough)
- Medial and lateral lips
- Gluteal tuberosity
- Pectineal (spiral) line
- Adductor tubercle
- Supracondylar line
- Lateral and medial condyles
- Patellar surface
- Lateral and medial epicondyles
- Intercondylar fossa
- Popliteal surface
- Lateral and medial supracondylar lines
- Adductor tubercle
Patella
- Largest sesamoid bone
- Apex
- Base
- Anterior and posterior surfaces
Leg Region
- Tibia
- Proximal end
- Lateral and medial condyles
- Lateral and medial intercondylar tubercles (intercondylar eminence)
- Anterior and posterior intercondylar areas
- Articular surface for fibula
- Tibial tuberosity
- Body
- Anterior, medial, and interosseous borders
- Lateral, medial, and posterior surfaces
- Soleal line
- Distal end
- Fibular notch
- Medial malleolus
- Malleolar groove
- Malleolar articular surface
- Inferior articular surface
- Fibula
- Head
- Apex of fibular head
- Articular surface of fibular head
- Neck
- Body
- 2/3 upper part
- Anterior, posterior, and interosseous borders
- Lateral and medial crest
- Anterior, posterior, and medial surfaces
- 1/3 lower part
- Medial crest joins interosseous border
- Anterior surface is not present
- Distal end
- Lateral malleolus
- Articular surface of malleolus
- Lateral malleolar fossa and groove (fibularis longus and brevis)
Foot
- 26 bones
- Tarsal bones: 7
- Metatarsal bones: 5
- Digital bones: 14
Tarsal Bones
- Talus
- Head → calcaneus and navicular bone
- Neck
- Body
- Sulcus tali
- Trochlea of talus → tibia and fibula
- Lateral process
- Posterior process
- Lateral tubercle
- Medial tubercle
- Groove for flexor hallucis longus muscle
- Calcaneus
- Largest tarsal bone
- 6 surfaces
- Superior
- Inferior
- Anterior
- Posterior
- Lateral
- Medial: joins talus
- Navicular bone
- Anterior
- Posterior
- Lateral
- Medial → cuneiform bone → talus → cuboid bone → tuberosity of navicular bone
- Cuboid bone
- Anterior → base of metatarsals 4-5
- Posterior → calcaneus
- Medial → lateral cuneiform and navicular bone
- Inferior → groove for fibularis longus
- Cuneiform bones
- Medial (largest)
- Lateral
- Intermediate (smallest)
- Anterior → base of metatarsals 1-4
- Posterior → navicular bone
Metatarsal Bones
- 5 bones
- Base
- Head
- Body
- I → shortest and thickest
- II → longest
Digital Bones
- 14 bones
- Base
- Head
- Body
- Proximal, middle, and distal phalanges
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