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Mcq Hip Anatomy > Hip Joint > Flashcards

Hip Joint Flashcards

1
Q

What type of joint is the hip joint?

A

Ball-and-socket joint

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2
Q

What is the primary function of the hip joint?

A

Stability needed for a weight-bearing joint

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3
Q

What is the acetabular labrum?

A

A strong ring of fibrocartilage that connects to the edge of the acetabulum

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4
Q

What does the acetabular labrum do?

A

Gives the socket greater depth and helps hold the head of the femur in the socket

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5
Q

Name three ligaments that support the hip joint.

A
  • Ischiofemoral ligament
  • Iliofemoral ligament
  • Pubofemoral ligament
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6
Q

What is the role of the ligament of the head of the femur?

A

Joins the head of the femur to the acetabulum

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7
Q

What is a bursa?

A

A fluid-filled sac that prevents friction and allows easy movement of joints.

Bursae are found in various joints throughout the body.

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8
Q

What is the function of the ischial bursa?

A

Prevents friction between the gluteus maximus muscle and the ischial tuberosity.

The ischial bursa helps facilitate movement in the hip area.

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9
Q

What does the iliopectineal bursa separate?

A

The anterior hip joint capsule from the iliopsoas muscle.

This separation helps reduce friction during hip movements.

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10
Q

What is the role of the trochanteric bursa?

A

Prevents friction between the greater trochanter and the gluteus maximus muscle.

This bursa is important for smooth hip joint function.

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11
Q

How many bursae are mentioned in relation to the hip joint?

A

Several bursae.

Specific bursae include the ischial bursa, iliopectineal bursa, and trochanteric bursa.

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12
Q

What is the definition of congruency in the context of joints?

A

The concept of ‘fitting well together’

This refers to how well the surfaces of a joint align and interact with each other.

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13
Q

How does the femoral head relate to the acetabulum when standing erect?

A

The femoral head is not completely covered by the acetabulum; the anterosuperior aspect is exposed.

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14
Q

What type of joint is the hip?

A

Ball and socket joint.

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15
Q

What does incongruity imply regarding the hip joint surfaces?

A

Limited contact between the two surfaces, especially under low loading conditions.

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16
Q

What happens to the area of contact between the hip joint surfaces with increasing load?

A

The area of contact gradually increases.

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17
Q

Fill in the blank: Although the articular surfaces are curved, the hip joint consists of two slightly _______ shapes.

A

incongruent

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18
Q

What determines the congruity of the hip joint?

A

The congruity of the hip joint is determined by an arched acetabulum and a rounded femoral head which generally speaking ‘fit well’

This refers to the anatomical structure and relationship between the acetabulum and femoral head.

19
Q

How can the coincidence of the articular surfaces be achieved in the hip joint?

A

By flexing the hip to 90 degrees, abducting by 5 degrees, and laterally rotating by 10 degrees

This position maximizes the contact area between the articular surfaces.

20
Q

What is the open pack position in joints?

A

The open pack position is the position of most stability/congruency for all joints

It refers to a position where the joint surfaces are not maximally compressed, allowing for slight movement.

21
Q

What occurs in the position where optimal articular contact happens?

A

Optimal articular contact occurs in the open pack position

This position allows for maximum stability and minimizes the risk of injury.

22
Q

What is the relationship between the femur and the pelvis in terms of congruency?

A

The superior surface of the head of the femur and that of the acetabulum generally sustain the greatest pressures.

23
Q

Where is the articular cartilage thicker in the hip joint?

A

In the regions of the femoral head and acetabulum that sustain the greatest pressures.

24
Q

Under what condition does the anteromedial region of the acetabulum become involved in weight-bearing?

A

When the hip joints are in extreme flexion, such as during squatting.

25
Q

True or False: The anteromedial region of the acetabulum is always involved in weight-bearing.

A

False

26
Q

Fill in the blank: The articular cartilage is thicker in regions that sustain the greatest _______.

A

pressures

27
Q

What part of the femoral head articulates with the inferior part of the acetabulum during extreme flexion?

A

The anteromedial region of the acetabulum.

28
Q

What is one of the main activities that causes a loss of hip joint congruency?

A

Walking, running etc.

29
Q

What does the loss of congruency in the hip joint potentially affect?

A

Its stability.

30
Q

In which directions does the acetabulum of the pelvis face?

A

Laterally, anteriorly, and inferiorly.

31
Q

In which directions does the femoral neck face?

A

Medially, anteriorly, and superiorly.

32
Q

What is the angle between the acetabulum and the femoral neck?

A

30 to 40°.

33
Q

Fill in the blank: The anterior part of the femoral head articulates with the _______.

A

joint capsule.

34
Q

True or False: The acetabulum and femoral neck align perfectly during all activities.

A

False.

35
Q

What is the consequence of the angle between the acetabulum and femoral neck?

A

It affects the congruency of the hip joint.

36
Q

What is one of the main activities that causes a loss of hip joint congruency?

A

Walking, running etc.

37
Q

What does the loss of congruency in the hip joint potentially affect?

A

Its stability.

38
Q

In which directions does the acetabulum of the pelvis face?

A

Laterally, anteriorly, and inferiorly.

39
Q

In which directions does the femoral neck face?

A

Medially, anteriorly, and superiorly.

40
Q

What is the angle between the acetabulum and the femoral neck?

A

30 to 40°.

41
Q

Fill in the blank: The anterior part of the femoral head articulates with the _______.

A

joint capsule.

42
Q

True or False: The acetabulum and femoral neck align perfectly during all activities.

A

False.

43
Q

What is the consequence of the angle between the acetabulum and femoral neck?

A

It affects the congruency of the hip joint.

Mcq Hip Anatomy (3 decks)

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