Osteology Of The Lower Extremity

Question 1

Navicular

Answer 1

• Short, wide bone

- Articulates w/ head of talus and Cuneiforms

Question 2

Anterior border of the Tibia

Answer 2

• Cneminal crest

- AKA Shin

Question 3

Tibial tuberosity

Answer 3

Attachment site for patellar ligament

Question 4

Intertrochanteric Crest

Answer 4

• Distinct crest joining the two trochanters

- Has the Quadrate tubercle

Question 5

Femoral Angle of inclination in a 3 year old?

Answer 5

45 degrees

Question 6

The Posterior portion of the femur is Characterized by what?

Answer 6

LINEA ASPERA

• 2 lines that come together in the middle of the femur near shaft
• Diverge to form the LATERAL and MEDIAL Supracondylar lines

Question 7

Longest and heaviest bone in the body

Answer 7

Femur

Question 8

Inter condylar eminence

Answer 8

• Collections of several processes to which attach ligaments
• Fits into the Intercoldylar fossa of the femur

Question 9

Intertrochanteric line

Answer 9

• rough line joining the 2 trochanters

- ANTERIOR Surface

Question 10

What bone in the leg does not bear weight?

Answer 10

FIBULA

Question 11

Medial Malleolus

Answer 11

• Distal Tibia
• Extends Inf.
• Forms ankle joint with Talus

Question 12

Femoral Condyles

Answer 12

Articular surface for TIBIA
(Tibial plateaus)

• Large, CYLINDRICAL Medial/Lateral Processes

Question 13

What is the torsion angle of the Femur?

Answer 13

12 degrees

Question 14

What is the most common bone fractured? Why?

Answer 14

Tibia

• Poor blood Supply
• Healing may take a while

Question 15

The conspicuous tuberosity is on what metatarsal?

Answer 15

5

Question 16

Fovea of the femur

Answer 16

• Shallow depression on the head of the femur

- Supports small artery to the head of the femur

Question 17

Site of Attachment for the Ligamentum Teres

Answer 17

Fovea

Question 18

What is the heel bone?

Answer 18

Calcaneus

Question 19

Soleal line

Answer 19

• Posterior surfaces
• Line from LATERAL condyle to MEDIAL side
• Marks attachment of Soleus muscle

Question 20

The femoral condyles articulate with what?

Answer 20

Tibial condyles

Plateaus

Question 21

Lateral Distal surface of leg

Answer 21

Fibular Notch

Question 22

Cuboid

Answer 22

• Lateral to Navicular
• Articulates with Calcaneus
• Articulates with metatarsals 4 and 5

Question 23

The medial lip of the linea aspera is formed from what?

Answer 23

The continuation from the Intertrochanteric line

Question 24

What two lines form the linea apera?

Answer 24

• Pectineal line

- Gluteal tuberosity

Question 25

Proximal and Distal attachments of the Fibula

Answer 25

Proximal - Tibia Distal - Talus

Question 26

Tarsal bones

Answer 26

6 total - Calcaneus - Talus - Cuneiforms (3) - Navicular (Equivalent to Scaphoid)

Question 27

Sustentaculum tail

Answer 27

- Supports talus

Question 28

Popliteal surface of the femur

Answer 28

Back of the Knee - Smooth triangular surface b/w the 2 Supracondylar lines

Question 29

Approx length of the Femur

Answer 29

1/4th of a persons height

Question 30

Femoral Angle of inclination in old age?

Answer 30

60 degrees

Question 31

What is the second largest bone in the body?

Answer 31

Tibia

Question 32

Does the tibia bear weight?

Answer 32

Yes

Question 33

Intertrochanteric line on of the _____ side of the femur and the Intertrochanteric Crest is on the _____ side.

Answer 33

- Anterior - Posterior “LA and PC”

Question 34

Attachment site for the quadratus femoris

Answer 34

Quadrate tubercle

Question 35

Fxn of Fibula

Answer 35

Acts like a lever arm to INCREASE or DECREASE tension of Talus

Question 36

What is the only ankle bone that articulates with the tibia?

Answer 36

Talus

Question 37

Branches of the Lateral circumflex femoral artery

Answer 37

- Ascending - Transverse - Descending

Question 38

Muscle attachment of the medial epicondyle.

Answer 38

AD-ductor Magnus muscle - at the Adductor tubercle (round projection)

Question 39

Tochanters

Answer 39

- LIP like projections LATERAL to the Head and Neck of the Femur - Greater and Lesser - Serve for muscle attachment

Question 40

Cuneiforms

Answer 40

- Name refers to WEDGE forms | - Each Articulates w/ one of the metatarsal 1 -3

Question 41

Bones of the feet

Answer 41

- Tarsals - Metatarsals - Phalanges

Question 42

Femoral Angle of inclination in a Adulthood?

Answer 42

54 degrees

Question 43

Problem with neck of the femur

Answer 43

Vulnerable to sheer forces - especially in older women

Question 44

Patellar surface location

Answer 44

Distal ANT. depression b/w the Teo femoral condyles