Abdomen/Thorax/Lower Limb Muscles

Question 1

(the most superficial)

Answer 1

External Obliques
Action: (unilateral) rotation of trunk, (bilateral) flexion of trunk
Superior Attachment: ribs and costal cartilages 5-12
Inferomedial Attachment: linea alba

Question 2

(superficial)

Answer 2

Rectus Sheath (lateral) & Linea Alba (medial)

Question 3

(secondmost deep)

Answer 3

Internal Obliques

Question 4

(deepest)

Answer 4

Transverse Abdominis
Action: compression of anterior abdominal wall and viscera
Lateral Attachment: iliac crest
Medial Attachment: linea alba

Question 5

(deep)

Answer 5

Rectus Abdominis
Action: flexion of the spine
Inferior Attachment: pubic crest
Medial Attachment: xiphoid process

Question 6

(superficial)

Answer 6

External Intercostals
Action: elevation of the ribs during inhalation
Superior Attachment: inferior border of ribs1-11
Inferior Attachment: superior border of ribs 2-12

Question 7

(deep)

Answer 7

Internal Intercostals
Action: depression of ribs during forceful exhalation
Attachment: inferior border of ribs 1-11 and superior border of ribs 2-12

Question 8

(superficial)

Answer 8

Gluteus Maximus
Action: extension of thigh
Superior Attachment: sacrum
Inferior Attachment: IT band

Question 9

(deep)

Answer 9

Gluteus Medius
Action: abduction of thigh
Superior Attachment: ilium
Inferior Attachment: greater trochanter of femur

Question 10

(superficial)

Answer 10

Biceps Femoris - Long Head
Action: flexion of the knee
Superior Attachment: ischial tuberosity
Inferior Attachment: fibular head

Question 11

(deep)

Answer 11

Biceps Femoris - Short Head
Action: flexion of the knee
Superior Attachment: linea aspera of the femur
Inferior Attachment: fibular head

Question 12

(superficial)

Answer 12

Semitendinosus
Action: flexion of the knee
Superior Attachment: ischial tuberosity
Inferior Attachment: medial surface of the tibia

Question 13

(deep)

Answer 13

Semimembranosus
Action: flexion of the knee
Superior Attachment: ischial tuberosity
Inferior Attachment: medial condyle of the tibia

Question 14

(superficial)

Answer 14

Rectus Femoris
Action: extension of the knee
Superior Attachment: anterior inferior iliac spine
Inferior Attachment: proximal border of the patella

Question 15

Answer 15

Vastus Lateralis & Vastus Medialis
Action: extension of the knee
Superior Attachment: linea aspera
Inferior Attachment: patella

Question 16

(deep)

Answer 16

Vastus Intermedius
Action: extension of the knee
Superior Attachment: anterolateral surface of the femur shaft
Inferior Attachment: patella

Question 17

Answer 17

Sartorius
Action: flexion of the knee
Superior Attachment: anterior superior iliac spine
Inferior Attachment: proximal medial shaft of the tibia

Question 18

Answer 18

Tensor Fasciae Latae
Action: flexion of the femur
Superior Attachment: iliac crest
Inferior Attachment: IT band

Question 19

Answer 19

Gracilis
Action: flexion of the leg
Superior Attachment: body and inferior ramus of the pubis
Inferior Attachment: proximal media shaft of the tibia

Question 20

Answer 20

Pectineus
Action: flexion of the thigh
Superior Attachment: body and superior ramus of the pubis
Inferior Attachment: proximal posterior shaft of the femur

Question 21

Answer 21

Adductor Longus
Action: medial rotation
Superior Attachment: body and inferior ramus of the pubis
Inferior Attachment: linea aspera

Question 22

Answer 22

Adductor Magnus
Action: medial rotation
Superior Attachment: inferior ramus of the pubis
Inferior Attachment: linea aspera

Question 23

Answer 23

Adductor Brevis
Action: medial rotation
Superior Attachment: body and inferior ramus of the pubis
Inferior Attachment: linea aspera