Lecture 5: Lower Limb Skeleton

Question 1

Hip/coxal bone

Answer 1

Flat
Contains ilium, ischium, publs
Fuses to make acetabulum

Question 2

Lateral surface of hip bone

Answer 2

Gluteal surface
acetabulum
obturator foramen

Question 3

Medial surface of hip bone

Answer 3

Divided by medial border
Superior section contains iliac fossa anteriorly and auricular surface posteriorly
Inferior section contains obturator foramen

Question 4

Femur

Answer 4

Proximal end has spherical head, narrow cylindrical neck, greater and lesser trochanters
Body is cylindrical and has prominent posterior border: linea aspera
Distal end has medial and lateral condyle and bony elevation adductor tubercle above medial condyle

Question 5

Tibia

Answer 5

Proximal end has medial and lateral condyle, bony elevation on anterior surface called tibial tuberosity
Distal end has bony projection called medial malleolus

Question 6

Fibula

Answer 6

Proximal end has head and neck

Distal end has projection called lateral malleolus

Question 7

Tarsal bones

Answer 7

7 short bones
Proximal group: calcaneus (forms heel), talus
Middle group: navicular
Distal group: cuboid, cuneiforms (medial, intermediate, lateral)

Question 8

Metatarsal bones

Answer 8

Small long bones
Consists of proximal end (base), body (shaft), distal end (head)
Numbered 1-5 medial to lateral

Question 9

Toes

Answer 9

3 phalanges (proximal, medial, distal)
Big toe has 2 phalanges (proximal, distal)