Thoracic muscles

Question 0

Internal intercostal superior attachment

Answer 0

Inferior border of the ribs

Question 1

External Intercostal superior attachment

Answer 1

Inferior border of the ribs

Question 2

Innermost intercostal superior attachment

Answer 2

Inferior border of the ribs

Question 3

Transversus thoracis superior attachment

Answer 3

Posterior surface of lower sternum

Question 4

External intercostal inferior attachment

Answer 4

Superior border of the ribs below

Question 5

internal intercostal inferior attachment

Answer 5

superior border of the ribs below

Question 6

innermost intercostal inferior attachment

Answer 6

Superior border of ribs below

Question 7

Transversus thoracis inferior attachment

Answer 7

Internal surface of costal cartilages 2-6

Question 8

External intercostal innervation

Answer 8

intercostal nerve

Question 9

internal intercostal innervation

Answer 9

intercostal nerve

Question 10

innermost intercostal innervation

Answer 10

intercostal nerve

Question 11

Transversus thoracis innervation

Answer 11

intercostal nerve

Question 12

external intercostal action

Answer 12

During forced inspiration: elevate ribs

Question 13

Internal intercostal action

Answer 13

During forced respiration: interosseus part depresses ribs; interchondral part elevate ribs

Question 14

innermost intercostal action

Answer 14

during forced respiration: interosseus part depresses ribs; interchondral part elevates ribs

Question 15

Transversus thoracis action

Answer 15

Weakly depresses ribs

Question 16

External obliques Origin

Answer 16

external surfaces of 5th-12th ribs

Question 17

Internal obliques Origin

Answer 17

thoracolumbar fascia, anterior 2/3 of iliac crest, and connective tissue deep to inguinal ligament

Question 18

Transversus abdominis Origin

Answer 18

Internal surfaces of 7th to 12th costal cartilages, thoracolumbar fascia, iliac crest, and connective tissue deep to inguinal ligament

Question 19

Rectus Abdominis Origin

Answer 19

pubic symphysis and pubic crest

Question 20

External Oblique insertion

Answer 20

Linea alba, pubic tubercle, and anterior half of iliac crest

Question 21

External Oblique innervation

Answer 21

Thoraco-abdominal nerves (anterior rami of T7- T11) and subcostal nerve

Question 22

External Oblique Actions

Answer 22

Compress and support abdominal viscera; flex and rotate trunk

Question 23

Internal oblique insertion

Answer 23

Inferior border of 10th-12th ribs, lina alba, and pubis via conjoint tendon

Question 24

Internal oblique innervation

Answer 24

Thoraco-abdominal nerves ( anterior rami of T7-T11) subcostal and first lumbar nerve

Question 25

Internal oblique action

Answer 25

compress and support abdominal viscera; flex and rotate trunk

Question 26

Transversus abdominis insertion

Answer 26

Linea alba with aponeurosis of internal oblique, pubic crest, and pubis via conjoint tendon

Question 27

Transversus abdominis innervation

Answer 27

thoraco-abdominal nerves (anterior rami of T7-T11) subcostal and first lumbar nerve

Question 28

Transversus abdominis action

Answer 28

Compresses and supports abdominal viscera

Question 29

Rectus Abdominis insertion

Answer 29

Xiphoid process and 5th-7th costal cartilages

Question 30

Rectus Abdominis innervation

Answer 30

thoraco-abdominal and subcostal nerves (anterior rami of T7-T12 spinal nerves)

Question 31

Rectus Abdominis actions

Answer 31

Flexes trunk (lumbar vertebrae) and compresses abdominal viscera, stabilizes and controls tilt of pelvis (antilordosis)