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Lower Limb > Osteology > Flashcards

Osteology Flashcards

1
Q

Ossification centres of the pelvic bone

A

3 primary: close in 2,3 and 4th month
5 secondary ossification centers. Close at adulthood, 25years

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2
Q

What are the five secondary ossification centers

A

Iliac crest, pubic symphysis, anterior inferior iliac spine, ischial tuberosity and acetabular cartilages

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3
Q

Y shaped cartilage of the acetabulum at birth is called

A

Triradiant ligament: fuses at 17years

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4
Q

Lunate surface

A

The articular surface of the acetabulum

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5
Q

Ossification centre of femur. Primary

A

Shaft.. ossifies in 17th week(5th month)

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6
Q

Secondary ossification pointe of femur

A

Head 1st year
Greater trochnter 4th year
Lesser trochanter 14th year

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7
Q

What type of bone is the patella

A

Sesamoid bone. Primary ossification centres are at 3rd year

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8
Q

Weakest part of pelvis?

A

Acetabulum

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9
Q

Weakest part of femur

A

Femoral neck..
An intracapular fracture can leave to damage of medial femoral circumflex leading to avascular necrosis

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10
Q

Most common femur fracture

A

Shaft.. but in the elderly neck of femur

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11
Q

Fibula

A

Does not bear weight
Stabilizer of ankle joint
Attachment of muscles
Not part of knee joint

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12
Q

Interosseous membrane is made of

A

Dense regular connective tissue

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13
Q

Proximal tibiofibular join is a

A

Plane type synovial joint

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14
Q

Distal tibiofibular joint is

A

Syndesmosis joint.

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15
Q

Primary Ossification centers of tibia and fibula

A

Fibular: shaft 8th week
Tibia: shaft. 7th week

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16
Q

Clinical anatomy of tibia

A

Proximal end is most susceptible for osteomyelitis

17
Q

Clinical anatomy of fibula

A

Ideal bone for grafting

18
Q

Proximal group of tarsal bones include

A

Talus and calcaneus

19
Q

Intermediate group of tarsal bones

A

Navicular

20
Q

Distal group of tarsal bones

A

Cunieforms and cuboid bone

21
Q

The ankle joint(talocrural) is formed by?

A

Talus tibia and fibula
It’s a synovial hinge joint

22
Q

Joint between calcaneus and talus is called

A

Subtalar joint. Plane synovial joint

23
Q

What type of joint is The hip joint.

A

It’s a multiaxial ball and socket synovial joint.

24
Q

Hip joint is stabilized by

A

The acetabular labrum made of fibrocartilage
Fibrous capsule
Capsular ligaments

25
Q

Blood supply to hip joint

A

Medial and lateral circumflex femoral
Superior and inferior gluteal
Obturator branches

26
Q

Nerve supply to hip join

A

Sciatic
Femoral
Obturator
Superior gluteal nerve to quadratus femoris

27
Q

Function of transverse acetabular ligament

A

Allows nutrient vessels to enter the joint

28
Q

Coxa vara

A

Reduction in the angle between neck of femur and shaft while coxa valga is the increase in agle.. 135degrees

29
Q

Perthes disease

A

Childhood disease where blood supply is disrupt leading to avascular necrosis

Lower Limb (3 decks)

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