Muscles PDF

muscles Study online at https://quizlet.com/_fr8o3q 1. Trapezius Origin 1. external occipital protuberance ( Superior part) 2. Superior nuchal line (EXTRINSIC-su- 3. Nuchal ligament perficial) 2. Trapezius Inser- 1. lat third of the clavicle tion (Superior part)...

muscles Study online at https://quizlet.com/_fr8o3q 1. Trapezius Origin 1. external occipital protuberance ( Superior part) 2. Superior nuchal line (EXTRINSIC-su- 3. Nuchal ligament perficial) 2. Trapezius Inser- 1. lat third of the clavicle tion (Superior part) (EXTRINSIC-su- perficial) 3. Trapezius Action 1. elevate shoulder region ( Superior part ) 2. retract scapula (EXTRINSIC-su- perficial) 4. Trapezius Inner- 1. spinal accessory nerve (cranial nerve XI) (motor) vation (Superior 2. spinal nerves (c2) c3, c4. part) (EXTRINSIC-su- perficial) 5. Trapezius Origin 1. SP T1-T4 ( transverse part) (EXTRINSIC-su- perficial) 1 / 26  muscles Study online at https://quizlet.com/_fr8o3q 6. Trapezius insert ( 1. acromin of scapula transverse part) 2. superior crest of spine of scapula (EXTRINSIC-su- perficial) 7. Trapezius action 1. retract scapula ( transverse part) (EXTRINSIC-su- perficial) 8. Trapezius inner- 1. spinal accessory nerve (cranial nerve XI) (motor) vation ( trans- 2. spinal nerves (c2) c3, c4. verse part) (EXTRINSIC-su- perficial) 9. Trapezius origin ( 1. SP T5-T12 inferior part) (EXTRINSIC-su- perficial) 10. Trapezius insert ( 1. Medial end of the spine of the scapula inferior part) (EXTRINSIC-su- perficial) 11. Trapezius action 1. depress scapula ( inferior part) 2. retract scapula (EXTRINSIC-su- perficial) 12. Trapezius inner- 1. spinal accessory nerve (cranial nerve XI) (motor) vation ( inferior 2. spinal nerves (c2) c3, c4. part) (EXTRINSIC-su- perficial) 2 / 26  muscles Study online at https://quizlet.com/_fr8o3q 13. lattissimus dorsi 1. SP T7-T12 muscle origin 2. thoracolumbar fascia (EXTRINSIC-su- 3. posterior third of iliac crest perficial) 4. 9-12 ribs 5) inferior angle of scapula 14. lattissimus dorsi 1. floor of the inter tubercular groove of the humerus muscle insert (EXTRINSIC-su- perficial) 15. lattissimus dorsi 1. medial rotation of the humerus action 2. extends the humerus (EXTRINSIC-su- 3. adducts the humerus perficial) 4. raises bosy towards arms during pull-up 16. lattissimus dorsi 1. thoracodorsal nerve (c6-c8) muscle innerva- tion (EXTRINSIC-su- perficial) 17. levator scapulae 1. Posterior tubercles of transverse processes of C1-C4 origin (EXTRINSIC-in- termediate) 18. 3 / 26  muscles Study online at https://quizlet.com/_fr8o3q levator scapulae 1. Medial border of scapula superior to the root of spine insert of scapula (EXTRINSIC-in- termediate) 19. levator scapulae 1.elevates scapula and inferiorly rotates the lateral angle action of scapula (EXTRINSIC-in- 2. Uni- lat flexes neck and ipsilateral rotates neck termediate) 3. bilat- extends neck 20. levator scapulae 1. C3-C4 spinal nerves innervation 2. Dorsal scapular nerve (C4-C5) (EXTRINSIC-in- termediate) 21. Rhomboid minor 1.Nuchal lig origin 2. SPs of C7 and T1 vertebrae (EXTRINSIC-in- termediate) 22. Rhomboid minor 1. Medial border of scapula at the level of the root of spine insert of scapula (EXTRINSIC-in- termediate) 23. Rhomboid minor 1. Retracts scapula, and rotates inferiorly the lateral angle action of scapula (EXTRINSIC-in- 2. it fixes scapula to the thoracic wall (weak overall) termediate) 24. Rhomboid minor 1. Dorsal scapular nerve (C4, C5) innervation (EXTRINSIC-in- termediate) 4 / 26  muscles Study online at https://quizlet.com/_fr8o3q 25. rhomboid major 1. spinous processes of T2-T5 origin (EXTRINSIC-in- termediate) 26. rhomboid major 1. Medial border of scapula inferior to the root of spine of insert scapula (EXTRINSIC-in- termediate) 27. rhomboid major 1. Retracts scapula, and rotates inferiorly the lateral angle action of scapula; (EXTRINSIC-in- 2. it fix scapula to the thoracic wall termediate) 28. rhomboid major 1. Dorsal scapular nerve (C4, C5) innervation (EXTRINSIC-in- termediate) 29. Serratus Posteri- 1.Nuchal lig or Superior ori- 2. SPs of C7 to T3 vertebrae gin (EXTRIN- SIC-deep) 30. Serratus Posteri- 1. Superior borders of 2nd to 5th ribs (lateral to the costal or Superior in- angle) sert (EXTRIN- SIC-deep) 5 / 26  muscles Study online at https://quizlet.com/_fr8o3q 31. Serratus Posteri- 1. Elevates upper ribs; Appears to be largely propriocep- or Superior ac- tive in function tion (EXTRIN- SIC-deep) 32. Serratus Posteri- 1. 2nd to 5th intercostal nerves or Superior in- nervation (EXTRIN- SIC-deep) 33. Serratus Posteri- 1. SPs of T11 to L2 vertebrae or Inferior origin (EXTRIN- SIC-deep) 34. Serratus Posteri- 1. inferior borders of 8th to 12th ribs (near their costal or Inferior insert angle) (EXTRIN- SIC-deep) 35. Serratus Posteri- 1. Depresses lower ribs; Appears to be largely proprio- or Inferior action ceptive in function (EXTRIN- SIC-deep) 36. Serratus Posteri- Lower three intercostal nerves and subcostal nerve or Inferior inner- vation (EXTRIN- SIC-deep) 37. splenius capitis 1. Lower part of nuchal ligament (origin) 2. SP's (C4,C5,C6) C7-T3 (T4) 6 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC-su- perficial) 38. splenius capitis 1. Mastoid process (insert) 2. Lateral third of superior nuchal line (INTRINSIC-su- perficial) 39. splenius capitis 1. Bilaterally: extend head and neck (action) 2. Unilaterally: lateral flexes head and neck and ipsilateral (INTRINSIC-su- rotation of head perficial) 40. splenius capitis 1. Lateral branches of the PPR c3-c5 spinal nerves (innervation) (INTRINSIC-su- perficial) 41. Splenius Cervi- 1. SP's of (T3)T4-T6 cis (origin) (INTRINSIC-su- perficial) 42. Splenius Cervi- 1. Posterior tubercles of TPs C1-C3(C4) cis (insert) (INTRINSIC-su- perficial) 43. Splenius Cervi- 1. Bilaterally: extend head and neck cis (action) 2. Unilaterally: lateral flexes head and (INTRINSIC-su- neck and ipsilateral rotation of perficial) head 44. Splenius Cervi- 1. Lateral branches of PPRs cis (innervation) C5 to C7 spinal nerves (INTRINSIC-su- perficial) 45. Iliocostalis lum- 1) Iliac crest borum (origin) 2) posterolateral aspect of sacrum 7 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC-inter- mediate) 46. Iliocostalis lum- 1) Costal angles of lower 6-9 ribs borum (insert) (INTRINSIC-inter- mediate) 47. Iliocostalis lum- 1) Bilaterally: extends the spine and ribs depressor 2)Uni- borum (action) laterally: lateral flexes the spine (INTRINSIC-inter- mediate) 48. Iliocostalis lum- 1) Lateral branches of PPRs of nearby spinal nerves borum (innerva- tion) (INTRINSIC-inter- mediate) 49. Iliocostalis tho- Costal angles of lower 6 ribs racis (origin) (INTRINSIC-inter- mediate) 50. Iliocostalis tho- Costal angles of upper 6 ribs racis (insert) (INTRINSIC-inter- mediate) 51. Iliocostalis tho- 1)Bilaterally: extends the spine and ribs depressor 2)Uni- racis (action) laterally: lateral flexes the spine (INTRINSIC-inter- mediate) 52. Iliocostalis tho- Lateral branches of PPRs of nearby spinal nerve racis (innerva- tion) (INTRINSIC-inter- mediate) 8 / 26  muscles Study online at https://quizlet.com/_fr8o3q 53. liocostalis cervi- 1) Costal angles of 3rd to 6th ribs cis (origin) (INTRINSIC-inter- mediate) 54. liocostalis cervi- 2) Posterior tubercles of TPs of C4 to C7 vertebrae cis (insertion) (INTRINSIC-inter- mediate) 55. liocostalis cervi- 1)Bilaterally: extends the neck cis (action) 2)Unilaterally: lateral flexes the neck (INTRINSIC-inter- mediate) 56. liocostalis cervi- 1) Lateral branches of PPRs of nearby spinal nerves cis (innervation) (INTRINSIC-inter- mediate) 57. longissimus tho- 1) Spinous processes of L1-L5 vertebrae, racis (origin) 2) dorsal surface of sacrum and Iliac crest. (INTRINSIC-inter- mediate) 58. Longissimus 1) TPs of lower 9 T vertebrae thoracis (insert) 2)shafts of the lower 9 ribs btw the costal tubercle and (INTRINSIC-inter- costal angle mediate) 59. Longissimus 1) Bilaterally: extends the spine thoracis (action) 2) Unilaterally: lateral flexes the spine (INTRINSIC-inter- mediate) 60. Longissimus Medial and lateral branches of PPRs of nearby spinal thoracis nerves (innervation) (INTRINSIC-inter- mediate) 9 / 26  muscles Study online at https://quizlet.com/_fr8o3q 61. Longissimus TPs of T1-T5 cervicis (origin) (INTRINSIC-inter- mediate) 62. Longissimus 1) Posterior tubercles of TPs and non-articular part of cervicis (insert) inferior APs of C2-C6 vertebrae (INTRINSIC-inter- mediate) 63. Longissimus 1)Bilaterally: extends the spine cervicis (action) 2)Unilaterally: lateral flexes the neck (INTRINSIC-inter- mediate) 64. Longissimus Medial and lateral branches of PPRs of nearby spinal cervicis nerves (innervation) (INTRINSIC-inter- mediate) 65. Longissimus 1)TPs of T1-T5 vertebrae capitis (origin) 2)Non-articular part of IAPs of C4-C7 vertebrae (INTRINSIC-inter- mediate) 66. Longissimus Mastoid process of temporal bone (deep to splenius capi- capitis (insert) tis (INTRINSIC-inter- mediate) 67. Longissimus 1) Bilaterally: extends the spine capitis (action) 2)Unilaterally: lateral flexes the head (INTRINSIC-inter- mediate) 68. Longissimus Medial and lateral branches of PPRs of nearby spinal capitis nerve (intervention) 10 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC-inter- mediate) 69. Spinalis thoracis SPs of lower T and upper L vertebrae (origin) (INTRINSIC-inter- mediate) 70. Spinalis thoracis SPs of upper T vertebrae (insert) (INTRINSIC-inter- mediate) 71. Spinalis thoracis 1) Bilaterally: extends the spine (action) 2) Unilaterally: extends the spine (INTRINSIC-inter- mediate) 72. Spinalis thoracis 1) Medial branches of PPRs of nearby spinal nerves (innervation) (INTRINSIC-inter- mediate) 73. Spinalis cervicis SPs of upper T vertebrae (inseparably connected with (origin) semispinalis cervicis) (INTRINSIC-inter- mediate) 74. Spinalis cervicis SPs C2 (C3, C4) (insert) (INTRINSIC-inter- mediate) 75. Spinalis cervicis 1) Bilaterally: extends the neck (action) 2) Unilaterally: extends the neck (INTRINSIC-inter- mediate) 76. Spinalis cervicis Medial branches of PPRs of nearby spinal nerves (innervation) 11 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC-inter- mediate) 77. Spinalis capitis SPs of lower C vertebrae, (inseparably connected with (origin) semispinalis capitis) (INTRINSIC-inter- mediate) 78. Spinalis capitis Occipital bone btw superior and inferior nuchal lines, me- (insert) dially (INTRINSIC-inter- mediate) 79. Spinalis capitis 1) Bilaterally: extends the head (action) 2) Unilaterally: extends the head (INTRINSIC-inter- mediate) 80. Spinalis capitis Medial branches of PPRs of nearby spinal nerves (innervation) (INTRINSIC-inter- mediate) 81. semispinalis tho- -TP of the lower 6 T vertebrae racis (origin) (INTRINSIC- deep) 82. semispinalis tho- 1) SP of (4) 5-6 (7) levels above racis (insert) - example SP of lower C and upper T vert (INTRINSIC- deep) 83. semispinalis tho- 1) Bilaterally: extend spine racis (action) 2) Unilaterally: extends T andC vertebrae (INTRINSIC- deep) 84. semispinalis tho- Medial branches of PPRsof nearby spinal nerves racis (innerva- 12 / 26  muscles Study online at https://quizlet.com/_fr8o3q tion) (INTRINSIC- deep) 85. semispinalis cer- TPs of upper 6 T vertebrae vicis (origin) (INTRINSIC- deep) 86. semispinalis cer- 1) SPs of vertebrae (4) 5-6 (7)levels above vicis (insert) -E.g, SPs of C2 to C5 vertebrae; big on SP C2! (INTRINSIC- deep) 87. semispinalis cer- 1) Bilaterally: extend spine vicis (action) 2)Unilaterally: extends C vertebrae (INTRINSIC- deep) 88. semispinalis cer- Medial branches of PPRsof nearby spinal nerves vicis (innerva- tion) (INTRINSIC- deep) 89. semispinalis 1) TPs of C7 and upper 6 T vertebrae capitis (origin) 2) Inferior APs of lower C vertebrae (INTRINSIC- deep) 90. semispinalis Occipital bone btw superiorand inferior nuchal lines,me- capitis (insert) dial part (INTRINSIC- deep) 91. semispinalis 1)Bilaterally: extend head capitis (action) 2)Unilaterally: extends head (INTRINSIC- deep) 13 / 26  muscles Study online at https://quizlet.com/_fr8o3q 92. semispinalis Medial branches of PPRsof nearby spinal nerves capitis (innervation) (INTRINSIC- deep) 93. multifidus sacral posterior surface of sacrum part (origin) (INTRINSIC- deep) 94. multifidus sacral SPs of vertebrae 3-4 levelsabove part (insert) (INTRINSIC- deep) 95. multifidus sacral 1) Bilaterally: extend spine part (action) 2) Unilaterally: extends spine,laterally flexes spine,con- (INTRINSIC- tralateral rotation of VB deep) 96. multifidus sacral Medial and lateral branchesof PPRs of nearby spinal- part (innerva- nerves tion) (INTRINSIC- deep) 97. multifidus lum- Mammillary processes of L vertebrae bar part (origin) (INTRINSIC- deep) 98. multifidus lum- SPs of vertebrae 3-4 levels above bar part (insert) (INTRINSIC- deep) 99. multifidus lum- 1) Bilaterally: extend spine Unilaterally: extends spine,lat- bar part (action) erally flexes spine, 2) contralateral rotation of VB 14 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC- deep) 100. multifidus lum- Medial and lateral branchesof PPRs of nearby spinal- bar part (innerva- nerves tion) (INTRINSIC- deep) 101. multifidus tho- TPs T vertebrae racic part (origin) (INTRINSIC- deep) 102. multifidus tho- SPs of vertebrae 3-4 levelsabove racic part (insert) (INTRINSIC- deep) 103. multifidus tho- 1) Bilaterally: extend spine Unilaterally: extends spine,lat- racic part (ac- erally flexes spine, tion) 2) contralateral rotation of VB (INTRINSIC- deep) 104. multifidus tho- Medial and lateral branchesof PPRs of nearby spinal- racic part (inner- nerves vation) (INTRINSIC- deep) 105. multifidus cervi- Inferior APs of C4-C7 vertebrae cis part (origin) (INTRINSIC- deep) 106. multifidus cervi- SPs of vertebrae 3-4 levels above with the last belly on cis part (insert) SP C2 (INTRINSIC- deep) 15 / 26  muscles Study online at https://quizlet.com/_fr8o3q 107. multifidus cervi- 1) Bilaterally: extend spine Unilaterally: extends spine,lat- cis part (action) erally flexes spine, (INTRINSIC- 2) contralateral rotation of VB deep) 108. multifidus cervi- Medial and lateral branchesof PPRs of nearby spinal cis part (innerva- nerves tion) (INTRINSIC- deep) 109. Rotator Longus TPs T vertebrae (and/or 1and L2 vertebrae) (origin) (INTRINSIC- deep) 110. Rotator Longus SPs of vertebrae 2 levels above (insert) (INTRINSIC- deep) 111. Rotator Longus Bilaterally: extend spineUnilaterally: contralateralrotation (action) of VB (INTRINSIC- deep) 112. Rotator Longus Medial branches of PPRsof nearby spinal nerves (innervation) (INTRINSIC- deep) 113. Rotator brevis TPs T vertebrae (and/or L1 vertebra) (origin) (INTRINSIC- deep) 114. Rotator brevis SPs of vertebrae 1 level above (insert) 16 / 26  muscles Study online at https://quizlet.com/_fr8o3q (INTRINSIC- deep) 115. Rotator brevis 1) Bilaterally: extend spine (action) 2) Unilaterally: contralateral rotation of VB (INTRINSIC- deep) 116. Rotator brevis Medial branches of PPRs of nearby spinal nerves (innervation) (INTRINSIC- deep) 117. Interspinalis (ori- Superior border of SPs of caudal vertebrae gin) 118. Interspinalis (in- Inferior border of SPs of cranial vertebra sert) 119. Interspinalis (ac- approximation of SPsOverall, spine extension tion) 120. Interspinalis (in- Medial branches of PPRsof nearby spinal nerves nervation) 121. Anterior IT coli 1) Anterior tubercles of C2-C7 vertebra (origin) 2) TP T1 122. Anterior IT coli Anterior tubercle of C1-C7 (insert) 123. Anterior IT coli Approximation of TPs Overall, lateral flexion of C spine (action) 124. Anterior IT coli APR of C spinal nerves (innervation) 125. Posterior IT coli 1) Posterior tubercles of C2-C7 vertebra (origin) 2) TP T1 17 / 26  muscles Study online at https://quizlet.com/_fr8o3q 126. Posterior IT coli Posterior tubercle of C1-C7 (insert) 127. Posterior IT coli Approximation of TPsOverall, lateral flexion of C spine (action) 128. Posterior IT coli PPRs of C spinal nerves (innervation) 129. Medial IT Lumbo- Mammillary process of L1-L5 vertebrae rum (origin) 130. Medial IT Lumbo- 1) Accessory process 2) Mamillo-accessory ligament rum (insert) 3) Mammillary process of T12-L4 vertebrae 131. Medial IT Lumbo- Approximation of TPsOverall, lateral flexion of L spine rum (action) 132. Medial IT Lum- PPRs of L spinal nerves borum (innerva- tion) 133. Lateral IT Lum- TPs of L1-L5 borum (origin) 134. Lateral IT Lum- TPs of L12-L4 borum (insert) 135. Lateral IT Lum- Approximation of TPsOverall, lateral flexion of L spine borum (action) 136. Lateral IT Lum- APRs of L spinal nerves borum (innerva- tion) 137. Levator costo- Tips of TPs C7 to T10 rum longus (ori- gin) 138. The 2nd rib below, btw the tubercle of rib and costal angle 18 / 26  muscles Study online at https://quizlet.com/_fr8o3q Levator costo- rum longus (in- sert) 139. Levator costo- 1) Elevate ribs rum longus (ac- 2) With ribs stabilized: lateral flexion of spine tion) 140. Levator costo- Lateral branches of PPRs of nearby spinal nerves rum longus (in- nervation) 141. Levator costo- Tips of TPs C7 to T11 rum brevis (ori- gin) 142. Levator costo- The 1st below, btw the tubercle of rib and costal angle rum brevis (in- sert) 143. Levator costo- 1) Elevate ribs rum brevis (ac- 2) With ribs stabilized: lateral flexion of spine tion) 144. Levator costo- Lateral branches of PPRsof nearby spinal nerves rum brevis (in- nervation) 145. Rectus Capitis Posterior tubercle of posterior arch of C1 Posterior Minor: (origin) (suboccipital muscle) 146. Rectus Capitis Medial portion of the inferior nuchal line and occipital Posterior Minor: bone anterior to it (insert) (suboccipital muscle) 19 / 26  muscles Study online at https://quizlet.com/_fr8o3q 147. Rectus Capitis 1) Bilaterally: extend head Posterior Minor: 2) Unilaterally: extends head and lateral flexion (action) head(weak) (suboccipital muscle) 148. Rectus Capitis Suboccipital nerve (PPRC1) Posterior Minor: (innervation) (suboccipital muscle) 149. Rectus Capitis SP C2 Posterior Major: (origin) (suboccipital muscle) 150. Rectus Capitis Lateral portion of the inferior nuchal line and occipital Posterior Major: bone anterior to it (insert) (suboccipital muscle) 151. Rectus Capitis 1) Bilaterally: extend head Posterior Major: 2) Unilaterally: ipsilateral rotation of the head (action) (suboccipital muscle) 152. Rectus Capitis Suboccipital nerve (PPRC1) Posterior Major: (innervation) (suboccipital muscle) 153. Obliquus Capitis SP C2 Inferior (origin) (suboccipital muscle) 20 / 26  muscles Study online at https://quizlet.com/_fr8o3q 154. Obliquus Capitis TP C1 Inferior (insert) (suboccipital muscle) 155. Obliquus Capitis 1) Bilaterally: stabilizes head 2) Unilaterally: ipsilateral Inferior (action) rotation of the neck (suboccipital muscle) 156. Obliquus Capitis Suboccipital nerve (PPRC1) Inferior (innerva- tion) (suboccipital muscle) 157. Obliquus Capitis TP C1 superior (origin ) (suboccipital muscle) 158. Obliquus Capitis Lateral portion of occipital bone btw superior and Inferior superior ( insert) nuchal lines (suboccipital muscle) 159. Obliquus Capitis 1) Bilaterally: extend head superior (action ) 2) Unilaterally: contralateral rotation of head; lateral flex- (suboccipital ion of the head (weak) muscle) 160. Obliquus Capitis Suboccipital nerve (PPRC1) superior (inner- vation ) (suboccipital muscle) 161. suboccipital tri- - Roof = semispinalis capitis angle - borders = Medial Border: The rectus capitis posterior 21 / 26  muscles Study online at https://quizlet.com/_fr8o3q major muscle. Lateral Border: The obliquus capitis superior muscle. Inferior Border: The obliquus capitis inferior muscle. - floor = posterior Atlanto-occipital membrane and poste- rior arch of c1 - content = vertebral artery (3rdpart)- suboccipital nerve(PPR C1) (motor toSO mm)- anastomotic nerve brC1-C2 (proprioceptivesignals from SO mm toC2 spinal nerve) 162. whiplash occipital neuralgia can be related to whiplash injuries. Whiplash often involves sudden neck movement, which can strain the muscles and ligaments in the neck, poten- tially leading to irritation or compression of the greater occipital nerve. 163. Vertebral Artery 1) Cervical Part (Prevertebral) Anatomical Clas- Location: Origin (subclavian artery) to transverse foramen sification (TF) of C6. 2) Intraforaminal (Vertebral) Part Location: TF of C6 to TF of C1. 3) Suboccipital Part Location: TF of C1 to posterior atlanto-occipital mem- brane (PAOM). 4) Cranial Part Location: From PAOM through dura mater to inside the skull (foramen magnum). 164. external inter- Inferior border ribs 1st-11th from costal tubercles, poste- costals (origin) riorly, to costal cartilages, anteriorly (true muscles of the thoracic wall) 165. external inter- Superior border of adjacent rib below from costal tuber- costals (insert) cles, posteriorly, to costal cartilages, anteriorly (true muscles of the thoracic wall) 166. rib elevation 22 / 26  muscles Study online at https://quizlet.com/_fr8o3q external inter- costals (action) (true muscles of the thoracic wall) 167. external inter- intercostal nerve (of the respective intercostal space) costals (innerva- tion) (true muscles of the thoracic wall) 168. internal inter- Superior border ribs 1-11 from sternum/costal cartilages, costals (origin) anteriorly, to costal angle, posteriorly (true muscles of the thoracic wall) 169. internal inter- inferior border of adjacent rib above from sternum/costal costals (insert) cartilages, anteriorly, to costal angle, posteriorly (true muscles of the thoracic wall) 170. internal inter- 1) Rib depression costals (action) 2) Rib elevation for the interchondral part (true muscles of the thoracic wall) 171. internal inter- intercostal nerve (of the respective intercostal space) costals (innerva- tion) (true muscles of the thoracic wall) 172. innermost inter- Superior border ribs 1-11 corresponding to the later- costals (origin) al/middle portion of the intercostal space (true muscles of the thoracic wall) 173. innermost inter- Inferior border of adjacent rib above corresponding to the costals (insert) lateral/middle portion of the intercostal space 23 / 26  muscles Study online at https://quizlet.com/_fr8o3q (true muscles of the thoracic wall) 174. innermost inter- rib depression costals (action) (true muscles of the thoracic wall) 175. innermost inter- Intercostal nerve (of the respective intercostal space) costals (innerva- tion) (true muscles of the thoracic wall) 176. subcostal (ori- Superior border of (mostly lower) ribs near the costal gin) angle (medial to the innermost intercostal) (true muscles of the thoracic wall) 177. subcostal (in- inferior border of 2nd rib above (medial to the innermost sert) intercostal) (true muscles of the thoracic wall) 178. subcostal (ac- rib depression tion) (true muscles of the thoracic wall) 179. subcostal (inner- intercostal nerve (of the respective intercostal space) vation) (true muscles of the thoracic wall) 180. Transversus Deep surface of lower part of sternum, xiphoid process, Thoracis (origin) costal cartilages 4-7 (true muscles of the thoracic wall) 181. Deep surface of 2nd to 6th costal cartilages 24 / 26  muscles Study online at https://quizlet.com/_fr8o3q Transversus Thoracis (insert) (true muscles of the thoracic wall) 182. Transversus rib depression Thoracis (action) (true muscles of the thoracic wall) 183. Transversus Intercostal nerve (of the respective intercostal space) Thoracis (innervation) (true muscles of the thoracic wall) 184. External Oblique External surfaces of 5th to 12th ribs (origin) 185. External Oblique 1) linea alba (insert) 2) pubic crest 3) pubic tubercle 4) ASIS 5) anterior 1/2 of iliac crest 186. External Oblique 1) Unilateral: CL rotates the trunk, laterally flexes spine 2) (action) Bilateral: flexes L spine, tilts pelvis backward 187. External Oblique 1) 7th to 11th thoraco-abdominal nerves (innervation) 2) Subcostal nerve (T12) 188. Internal Oblique 1) Thoracolumbar fascia (origin) 2) anterior 2/3 of iliac crest 3) ASIS 189. internal Oblique 1) inferior boarder of 10th to 12th rib (insert) 2) linea alba 3) pubic crest 4) pubic tubercle 5) pecten pubis via conjoint tendon 25 / 26  muscles Study online at https://quizlet.com/_fr8o3q 190. internal Oblique 1) Unilateral: IL rotates the trunk, laterally flexes spine (action) 2) Bilaterally: flexes L spine, tilts pelvis backward 191. internal Oblique 1) 7th to 11th thoraco-abdominal nerves (innervation) 2) Subcostal nerve (T12) 3) Iliohypogastric nerve (L1) 192. Transversus Ab- 1) internal surface 7th to 12th ribs/costal cartilages dominis (origin) 2) thoracolumbar fascia 3) iliac crest 4) ASIS 193. Transversus Ab- 1) linea alba dominis (insert) 2) pubic crest 3) pubic tubercle 4) pecten pubis via conjoint tendon 194. Transversus Ab- 1) Unilateral: IL rotates thetrunk) dominis (action) 2) Bilateral: Compresses abdominal viscera 195. Transversus Ab- 1) 7th to 11th thoraco-abdominal nerves dominis (inner- 2)Subcostal nerve (T12) vation) 3) Iliohypogastric nerve (L1) 196. Rectus abdomin- pubic crest is (origin) 197. Rectus abdomin- 1) xiphoid process is (insert) 2) ribs 5-7 costal cartlidges 198. Rectus abdomin- flexes trunk (L spine) is (action) controls tilt of pelvis 199. Rectus abdomin- 1) 7th to 11th thoraco-abdominal nerves is (innervation) 2) Subcostal nerve (T12) 26 / 26