The Hip Joint and Anterior Thigh Flashcards

1
Q

what type of joint is the hip joint?

A

a ball and socket synovial joint

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2
Q

why is the hip joint more stable than the shoulder joint?

A

strong ligaments and hip joint capsule

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3
Q

what is the acetabular labrum? What is its function?

A

A horeshoe shaped fibrocartilaginous ring around the acetabulum which increases its depth. The increase in depth provdes a larger articular surface, furter improving joint stability.

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4
Q

Label the 3 main ligaments of the hip joint

A
  1. iliofemoral ligament
  2. pubofemoral ligament
  3. ischiofemoral ligament
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5
Q

what does the iliofemoral ligament prevent?

A

hyperextension of the hip joint

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6
Q

what does the pubofemoral ligament prevent?

A

hyperabduction of the hip joint

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7
Q

identify the muscles labelled 1-3

A
  1. iliacus
  2. psoas major
  3. pectineus
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8
Q

what is the origin and attachment of the pectineus muscle?

A

origin- pubis bone
attachment - femur

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9
Q

what movement at the hip joint do these muscles permit?

A

flexion

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10
Q

The extensors of the hip are arranged into 3 functional groups:

A
  1. gluteus maximus main extensor
  2. hamstrings (comprised of 3 muscles)
  3. posterior part of adductor magnus
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11
Q

the adductor compartment of the thigh is mostly supplied by which nerve?

A

obturator nerve (aside from the posterior part of adductor magnus), a nerve from the lumbar plexus, which exits the pelvis via the obturator canal

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12
Q

what are the names of the labelled adductor muscles 1-3?

A
  1. adductor brevis
  2. adductor longus
  3. adductor magnus
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13
Q

label the deep gluteal muscles

maximus has been removed

A
  1. gluteus medius
  2. gluteus minimus
  3. piriformis
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14
Q

the adductor compartment of the thigh is supplied by branches of which plexus?

A

lumbar plexus

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15
Q

muscles involved in external rotation cross the hip joint at which side?

A

posterior side

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16
Q
A
17
Q

muscles involved in internal rotation cross the hip joint on which side?

A

anterior side

18
Q

which muscles are the medial rotators of the hip joint?

A
  1. gluteus medius (anterior fibres)
  2. gluteus minimus
  3. tensor fascia lata
19
Q

how many heads does the quadriceps femoris muscle have?

A

4, duh!

20
Q

what does the the iliopsoas insert onto?

A

lesser trochanter of the femur

21
Q

what are the 4 heads of the quadriceps called?

A
  1. rectus femoris
  2. vastus lateralis
  3. vastus intermedius
  4. vastus medialis
22
Q

which nerve innervates the quadriceps femoris muscles?

A

femoral nerve

23
Q

what is the action of rectus femoris on the hip joint?

A

flexes the thigh at the hip joint and extends at the knee joint

24
Q

to which part of the tibia does the patellar ligament attach?

A

tibial tuberosity

25
Q

what is the longest muscle of the body?

A

sartorius muscle

26
Q

which muscle is the most superficial in the anterior compartment of the thigh?

A

sartorius

27
Q

what is the origin and insertion of the sartorius muscle?

A

originates from the anterior superior iliac spine, and attaches to the superior, medial surface of the tibia.

28
Q

which muscles attach onto the pes anserinus (goose’s foot) on the medial aspect of the tibia?

A
  • sartorius
  • gracialis
  • semitendinosus
29
Q

what are the three actions of sartorius on the hip joint? and knee joint?

A
  1. flexion of the hip joint
  2. abduction of the hip joint
  3. laterally rotates the thigh at the hip joint

also flexes the lig at knee joint

30
Q

how do muscles in the medial compartment of the thigh act on the hip joint?

A

adduction

31
Q

which nerve innervates the medial thigh muscles?

A

obturator nerve (L2-S4)

32
Q

through which bony foramen does the nerve that innervates the medial thigh muscles enter the thigh?

A

obturator foramen

33
Q
A
  1. adductor brevis
  2. adductor magnus
  3. adductor canal
34
Q

what structures pass through the adductor canal? which fossa do they enter after passing through this canal?

A

femoral artery, femoral vein, saphenous nerve
- popliteal fossa