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anatomy > muscles of thigh + butt > Flashcards

muscles of thigh + butt Flashcards

(58 cards)

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1
Q

Site of origin + insertion of the sartorius muscle

A

Originate: anterosuperior iliac spine
Trajectory: inferomedial, covering the trajectory of the femoral artery
Insertion: medial region of proximal tibia

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2
Q

Innervation of the muscles in the anterior compartment of the thigh

A

Femoral nerve

EXCEPTION: psoas major — ventral rami of lumbar spinal nerves

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3
Q

Function of the ilipsoas

A

Hip flexion

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4
Q

Function of the quadriceps

A

Knee extension

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5
Q

Components of the quadriceps

A

Rectus femoris + vastus (intermedius, lateralis + medialis)

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6
Q

Function of the sartorius

A

Knee + hip flexion

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7
Q

Where does the reflected tendon of the rectus femoris originate

A

Subraacetabular groove

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8
Q

Site of insertion of the muscles of the quads

A

Anterior region of the femur + linea aspera

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9
Q

Trajectory of the quadriceps

A

The 4 muscles converge and the tendon moves inferiorly, becoming continuous with the patellar ligament + inserting into the tibial tuberosity

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10
Q

Origin + insertion of gracilis

A

Origin: inferior branch of pubis
Insertion: medial portion of proximal tibia

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11
Q

Nerve that innervates the adductors

A

Obturator nerve

EXCEPTION: pectineus — femoral nerve

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12
Q

Site of origin + insertion of the pectineus muscle

A

Origin: Pecten pubis
Insertion: medial region of proximal femur

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13
Q

Site of origin + insertion of the adductor longus

A

Origin: pubis
Insertion: medial intermediate portion of the femur

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14
Q

Compartments of the thigh + the function of the muscles

A

Anterior — extensors
Posterior — flexors of the knee
Medial — adductors

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15
Q

Site of origin + insertion of the adductor brevis

A

Origin: pubis
Insertion: medial intermediate portion of the femur, posterior to the adductor longus

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16
Q

Site of origin + insertion of the obturator externus

A

Origin: anterior part of the obturator membrane
Trajectory: oblique orientation of fibres, converge in the inferior acetabular groove
Insertion: intertrochanteric crest

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17
Q

Which muscle forms the adductor hiatus

A

Adductor magnus

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18
Q

Site of origin of the 2 parts of the adductor magnus

A

Adductor part: inferior pubic ramus

Posterior part: ischium

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19
Q

Nerves that innervate the adductor magnus

A

Adductor portion: obturator nerve

Posterior portion: sciatic nerve

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20
Q

Which artery passes through the adductor hiatus + what is it called afterwards?

A

Femoral artery, becomes popliteal artery

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21
Q

Site of insertion of the 2 portions of the adductor magnus

A

Adductor part: medial portion of distal femur (close to the medial epicondyle)
Posterior part: posterolateral portion of the femoral shaft

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22
Q

Nerve that innervates the posterior compartment of the thigh

A

Sciatic nerve

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23
Q

Muscles that make up the posterior compartment of the thigh

A

Semitendinosus, semimembranosus + biceps femoris

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24
Q

The semitendinosus originates in…

Study These Flashcards
A

The ischial tuberosity

25
Insertion of semitendinosus
Medial portion of proximal tibia
26
The semimembranosus originates in...
The ischial tuberosity
27
Insertion of the semimembranosus
Posterior part of the medial condyle of the proximal tibia
28
The long head of the biceps femoris originates in...
The ischial tuberosity
29
Insertion of the tendon of the biceps femoris
Fibular head (laterally)
30
Function of the muscles in the posterior compartment
Knee flexion
31
The short head of the biceps femoris originates in...
The linea aspera (posterior part of the femur)
32
What is the pes anserinus (goose foot)?
The joining of the tendons of the sartorius, gracilis + semitendinosus in the anteromedial region of the proxima tibia
33
Where does the iliopsoas insert?
Lesser trochanter
34
The gluteus maximus originates in...
The posterior region of the ilium + sacrum
35
Where does the gluteus maximus insert?
Into the gluteal tuberosity (femur) + the posterior border of the TFL
36
Name the 2 main functions of the gluteus maximus
1. hip extension | 2. external rotation
37
The nerve that innervates the gluteus maximus is...
The inferior gluteal nerve
38
The TFL originates in... and ...
The anterosuperior iliac spine + iliac crest
39
Where does the fascia lata insert?
Lateral portion of the tibia
40
The extension of the TFL stabilizes the knee + ...
Contributes to knee flexion
41
The TFL is a ... muscle
Biarticular
42
Name the nerve that innervates the TFL, gluteus medius + minimus
Superior gluteal nerve
43
The gluteus medius arises from...
The posterior surface of the ilium
44
Where does the gluteus medius insert?
Into the greater trochanter
45
The functions of both the gluteus medius + minimus are...
Hip abduction + internal rotation
46
The gluteus minimus arises from...
The lateral portion of the ilium
47
Both the gluteus medius + minimus insert into ...
The greater trochanter
48
Where do the gemelli originate?
Ischial region
49
The gemelli insert into the ... region of the ... (alongside the tendon of the ...)
Medial, greater, obturator internus
50
The function of the deep muscles of the butt (gemelli, piriformis, obturator internus + quadratus femoris) is
External rotation
51
The piriformis originates in... and inserts in...
Anterior portion of the sacrum, medial region of the greater trochanter
52
The obturator internus arises from... and inserts into...
Obturator membrane, inserts into the medial region of the greater trochanter
53
The quadratus femoris arises from...
The ischial tuberosity
54
Where does the quadratus femoris insert?
Intertrochanteric crest
55
The nerve to obturator internus innervates...
The obturator internus + the superior gemellus
56
The quadratus femoris + inferior gemellus are innervated by...
The nerve to quadratus femoris
57
Which of the following muscles of the deep layer of the butt has its own nerve? a) obturator internus b) gemellus inferior c) piriformis d) neither one of them
c)
58
The nerve to piriformis arises from which segments of the spinal cord?
S1-S2

anatomy (23 decks)

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