Muscles

Question 1

Name the Origin, Insertion, Action, and Innervation for: Rectus Abdominis

Answer 1

O: Ribs 5-7, Xyphoid process I: Pubic Ramus A: Sagittal -Flex Frontal - none Transverse - none N: Intercostal Nerves T7- T12

Question 2

Name the Origin, Insertion, Action, and Innervation for: External Oblique

Answer 2

O: Posterolateral Ribs 5-12 I: Iliac Crest and Linea Aspera A: Sagittal - Flex Frontal - Ipsilateral Flexion Transverse - Contralateral rotation N: Intercostal Nerves T7-T12

Question 3

Name the Origin, Insertion, Action, and Innervation for: Internal Oblique

Answer 3

O: Iliac Crest and Thoracolumbar Fascia I: Linea Alba and Inferior Ribs A: Sagittal - Flex Frontal - Ipsilateral Flexion Transverse - Ipsilateral Rotation N: Intercostal Nerves T7-T12

Question 4

Name the Origin, Insertion, Action, and Innervation for: Transverse Abdominis

Answer 4

O: Lower 6 Ribs, thoracolumbar fascia, and Iliac Crest I: Linea Alba A: Sagittal - No action Frontal - No action Transverse - No action N: Intercostal Nerves T7-T12

Question 5

Name the Origin, Insertion, Action, and Innervation for: Semispinalis (Thoracis, cervicis, capitis)

Answer 5

O: Lower thoracic TP (thoracis) Upper thoracic TP (cervicis) Cervical TP (Capitis) I: Upper thoracic & Lower cervical SP (thoracis) Cervical SP (cervicis) Occipital bone (capitis) A: Sagittal - extend Frontal - ipsilateral flexion Transverse - contralateral rotation N: Dorsal Rami

Question 6

Name the Origin, Insertion, Action, and Innervation for: Multifidus

Answer 6

O: Sacrum, transverse processes of lower lumbar to lower cervical vertebra I: Spinous processes of adjacent superior 2-5 vertebra A: Sagittal: Extend Frontal: Ipsilateral Flexion Transverse: Contralateral rotation N: Dorsal Rami

Question 7

Name the Origin, Insertion, Action, and Innervation for: Rotatores

Answer 7

O: Lumbar to cervical TP I: Lumbar to cervical SP, adjacent 1 vert brevis adjacent 2 vert longus A: Sagittal - Extend Frontal - Ipsilateral Flexion Transverse - Contralateral rotation N:Dorsal Rami

Question 8

Name the Origin, Insertion, Action, and Innervation for: Interspinalis

Answer 8

O: Lumbar to cervical SP I: Lumbar to cervical SP - adjacent superior vertebra A: Sagittal - Extend Frontal - no action Transverse - no action N: Dorsal Rami

Question 9

Name the Origin, Insertion, Action, and Innervation for: Intertransversarii

Answer 9

O: Lumbar to cervical TP I: Lumbar to Cervical TP - adjacent superior vertebra A: Sagittal - no action Frontal - Ipsilateral flexion Transverse - no action N: Dorsal Rami

Question 10

Name the Origin, Insertion, Action, and Innervation for: Quadratus Lumborum

Answer 10

O: TP upper lumbar vertebra and 12th rib I: Iliac Crest A: Sagittal - extend Frontal - ipsilateral flexion Transverse - no action N: T12, upper lumbar spinal nervse

Question 11

Name the Origin, Insertion, Action, and Innervation for: Sternohyoid

Answer 11

O: Hyoid Bone I: Manubrium A: Depresses Hyoid N: C1-C3

Question 12

Name the Origin, Insertion, Action, and Innervation for: Sternothyroid

Answer 12

O: Thyroid Cartilage I: Manubrium A: Depresses hyoid and Larynx N: C2-C3

Question 13

Name the Origin, Insertion, Action, and Innervation for: Thyrohyoid

Answer 13

O: Hyoid Bone I: Thyroid Cartilage A: Depresses hyoid and elevates larynx N: C1

Question 14

Name the Origin, Insertion, Action, and Innervation for: Omohyoid

Answer 14

O: Hyoid Bone I: Superior Border of Scapula A: Depresses and Retracts hyoid N: C1- C3

Question 15

Name the Origin, Insertion, Action, and Innervation for: Frontalis

Answer 15

O: Epicranial aponeurosis I: Skin of Eyebrow and Forehead A: Raises Eyebrows N: Facial and CN VII

Question 16

Name the Origin, Insertion, Action, and Innervation for: Orbicularis Oculi

Answer 16

O: Medial orbit (frontal and maxillary bones) I: Skin around orbit A: Closes eyelids N: Facial and CN VII

Question 17

Name the Origin, Insertion, Action, and Innervation for: Orbicularis Oris

Answer 17

O: Complicated: muscle fibers from several facial muscles I: Skin and mucous mebrane of lips A: Closes lips N: Facial and CN VII

Question 18

Name the Origin, Insertion, Action, and Innervation for: Buccinator

Answer 18

O: Posterior maxilla and mandible I: Complicated: fibers blend with orbicularis oris A: Compresses cheek N: Facial and CN VII

Question 19

Name the Origin, Insertion, Action, and Innervation for: Zygomaticus

Answer 19

O: Zygomatic Bone I: Angle of Mouth A: Pulls angle superiorly - Smile :-) N: Facial and CN VII

Question 20

Name the Origin, Insertion, Action, and Innervation for: Temporalis

Answer 20

O: Temporal Fossa (temporal, frontal, parietal bones) I: Coronoid process of mandible A: elevates, retrudes mandible N: Trigeminal V3

Question 21

Name the Origin, Insertion, Action, and Innervation for: Masseter

Answer 21

O: Zygomatic Arch I: Angle and ramus of mandible (outer surface) A: Elevates, protrudes mandible N: Trigeminal V3

Question 22

Name the Origin, Insertion, Action, and Innervation for: Medial Pterygoid

Answer 22

O: Lateral pterygoid plate and maxilla I: Angle and ramus of mandible (inner surface) A: Protrudes mandible N: Trigeminal V3

Question 23

Name the Origin, Insertion, Action, and Innervation for: Lateral Pterygoid

Answer 23

O: Lateral pterygoid plate and greater wing of sphenoid I: neck of mandible and articular disk A: Depresses and protrudes mandible N: Trigeminal V3