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Anatomy > Pelvic Girdle - Class #3 > Flashcards

Pelvic Girdle - Class #3 Flashcards

1
Q

what is the medial, larger bone of the lower leg

A

tibia

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2
Q

the second largest bone in the body is the _____

A

tibia

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3
Q

which part of the tibia receives body weight when kneeling?

A

tibial tuberosity

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4
Q

how can one identify the orientation of the tibia

A

1) superiorly - tibial plateau
2) anteriorly - tibial shaft
3) medially - medial malleolus

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5
Q

what is the name of the lateral, smaller bone of the lower leg?

A

fibula

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6
Q

the fibula bears approx ___ of body’s weight

A

1/5

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7
Q

what is the better name for the knee cap?

A

patella

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8
Q

what type of bone is the patella

A

sesamoid bone

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9
Q

why does the lateral aspect of the patella project more anteriorly?

A

to prevent lateral dislocation

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10
Q

how can you identify the orientation of the fibula

A

1) interiorly - apex

2) posteriorly - smooth surface

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11
Q

what are the 4 bursa of the knee joint

A

1) prepatellar bursa
2) subcutaneous bursa
3) deep infrapatellar burssa
4) pretibial bursa

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12
Q

what are the fibrocartilage discs that sit on the superior surface of the tibia?

A

meniscus

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13
Q

meniscus are _____ shaped when viewed anteriorly

A

wedge

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14
Q

what are two other names for meniscus

A

1) semilunar cartilage

2) intra-articular discs

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15
Q

stability of a joint is dependent on what?

A

ligaments (as well as muscles and cartilage)

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16
Q

what are the 4 ligaments of the knee that surround joints on all sides?

A

1) Medial Collateral Ligament (MCL)
2) Lateral Collateral Ligament (LCL)
3) Anterior Cruciate Ligament (ACL)
4) Posterior Cruciate Ligament (PCL)

17
Q

what shape is the MCL?

A

fan shaped, flat and broad

18
Q

is the MCL capsular or accessory ligament?

A

capsular and attaches to the medial meniscus

19
Q

is the LCL capsular or accessory?

A

accessory ligament (not attached to capsule or meniscus)

20
Q

where do the fibers of the ACL run?

A

up, back and lateral

21
Q

how is the ACL most often damaged?

A

cutting, or turning maneuver, landing off balance after a jump or sudden deceleration

22
Q

is the ACL capsular or accessory ligament?

A

intracapsular (found inside the joint capsule)

23
Q

where do the fibres of the PCL run?

A

up, forward and medial

24
Q

is the PCL capsular or accessory?

A

intracapsular (found inside the joint capsule)

25
Q

what are the medial and lateral sides of the knee joint capsule strengthened by?

A

fibrous extensions of the quadriceps called medial and lateral patellar retinacula

26
Q

flexion of the knee joint is limited by what

A

soft tissue block

27
Q

extension of the knee joint is limited by what?

A

hard (bone) block

28
Q

what is the “screw home mechanism”

A

rotation that occurs when the knee goes from flexion to full extension

Anatomy (22 decks)

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