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Muscles -- Thorax/Abdomen/Pelvis/Head/Neck
Material for Exam 3
102
Anatomy
Graduate
11/15/2013

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Cards

Term
External Intercostals
-Proximal and Distal Attachments
Definition
Proximal: Ribs - Inferior Border
Distal: Ribs Below - Superior Border
Term
External Intercostals
-Innervation
Definition
Intercostal Nerves
Term
External Intercostals
-Action
Definition
Approximation of the Ribs
Term
External Intercostals -Fiber Direction
Definition
inferomedial
Term
Internal Intercostals
-Proximal and Distal Attachments
Definition
Proximal: Ribs - Inferior Border
Distal: Ribs Below - Superior Border
Term
Internal Intercostals
-Innervation
Definition
Intercostal Nerves
Term
Internal Intercostals
-Action
Definition
Approximation of the Ribs
Term
Internal Intercostals
-Fiber Direction
Definition
Inferoposterior
Term
Innermost Intercostals
-Proximal and Distal Attachments
Definition
Proximal: Ribs - Inferior Border
Distal: Ribs Below - Superior Border
Term
Innermost Intercostals
-Innervation
Definition
Intercostal Nerves
Term
Innermost Intercostals
-Action
Definition
Approximation of the Ribs
Term
Innermost Intercostals
-Fiber Direction
Definition
Inferoposterior
Term
Transversus Thoracis
-Proximal Attachment
Definition
Sternum - Posterior Surface
Term
Transversus Thoracis
-Distal Attachment
Definition
Ribs 2-6 - Internal Surface of Costal Cartilages
Term
Transversus Thoracis
-Innervation
Definition
Intercostal Nerves
Term
Transversus Thoracis
-Action
Definition
Proprioception
Weakly Depress Ribs
Term
Subcostals
-Proximal Attachment
Definition
Lower Ribs - Internal Surface Near Angles
Term
Subcostals
-Distal Attachment
Definition
Ribs 2 or 3 Below - Superior Borders
Term
Subcostals
-Innervation
Definition
Intercostal Nerves
Term
Subcostals
-Action
Definition
Similar to Internal Intercostal

(Approximation of Ribs)
Term
Diaphragm
-Proximal Attachment
Definition
Central Tendon
Term
Diaphragm
-Distal Attachment
Definition
Sternal: Sternum - Xiphoid Process
Costal: Ribs 7-12 - Costal Cartilages and Adjacent Areas
Lumbar - Arcuate Ligametns and LV1-LV3
Term
Diaphragm
-Innervation
Definition
Phrenic Nerve (C3-C5)
Term
Diaphragm
-Action
Definition
Depression (Increases Thoracic Volume and Decreases Abdominal Volume)
Term
External Oblique
-Origin
Definition
Ribs 5-12
Term
External Oblique
-Insertion
Definition
Linea Alba
Pubis - Pubic Tubercle
Ilium - Iliac Crest
Term
External Oblique
-Innervation
Definition
Ventral Rami of Inferior 6 Thoracic Spinal Nerves
Term
External Oblique
-Action
Definition
Unilateral: Trunk Contralateral Rotation
Bilateral: Trunk Flexion
Compress and Support Abdominal Viscera
Term
Internal Oblique
-Origin
Definition
Thoracolumbar Fascia
Ilium - Iliac Crest
Inguinal Ligament
Term
Internal Oblique
-Insertion
Definition
Ribs 10-12 - Inferior Borders
Linea Alba
Pubis - Pecten via Conjoint Tendon
Term
Internal Obliques
-Innervation
Definition
Ventral Rami of Inferior 6 Thoracic Spinal Nerves
Term
Internal Oblique
-Action
Definition
Unilateral: Trunk Ipsilateral Rotation
Bilateral: Trunk Flexion
Compress and Support Abdominal Viscera
Term
Transversus Abdominal
-Origin
Definition
Ribs 7-12 - Costal Cartilages
Thoracolumbar Fascia
Ilium - Iliac Crest
Inguinal Ligament
Term
Transversus Abdominal
-Insertion
Definition
Linea Alba
Pubis - Pubic Crest and Pecten via Conjoint Tendon
Term
Transversus Abdominal
-Innervation
Definition
Ventral Rami of Inferior 6 Thoracic Spinal Nerves
Term
Transversus Abdominal
-Action
Definition
Compress and Support Abdominal Viscera
Term
Rectus Abdominis
-Origin
Definition
Pubis - Symphysis and Crest
Term
Rectus Abdominis
-Insertion
Definition
Sternum - Xiphoid Process
Ribs 5-7 - Costal Cartilages
Term
Rectus Abdominis
-Innervation
Definition
Ventral Rami of Inferior 6 Thoracic Spinal Nerves
Term
Rectus Abdominis
-Action
Definition
Trunk Flexion
Compress and Support Abdominal Viscera
Term
Quadratus Lumborum
-Superior Attachment
Definition
Lumbar Vertebrae - Transverse Processes
Rib 12 - Medial Inferior Border
Term
Quadratus Lumborum
-Inferior Attachment
Definition
Iliolumbar Ligament
Ilium - Iliac Crest
Term
Quadratus Lumborum
-Innervation
Definition
Ventral Rami of T12, L1-L4 Spinal Nerves
Term
Quadratus Lumborum
-Action
Definition
Unilateral: Trunk Lateral Flexion
Bilateral: Trunk Extension
Depress and Stabilize Rib 12
Term
Levator Ani
-Components
Definition
Pubococcygeus
Puborectalis
Iliococcygeus
Term
Levator Ani
-Innervation
Definition
Nerve to Levator Ani (S4)
Inferior Anal (Rectal) Nerve
Coccygeal Plexus
Term
Levator Ani
-Action
Definition
Helps to Support Pelvic Viscera
Resists Increases in Intra-Abdominal Pressure
Term
Coccygeus
-Innervation
Definition
Branches of S4 and S5 Spinal Nerves
Term
Coccygeus
-Action
Definition
Helps to Support Pelvic Viscera
Coccygeal Flexion
Term
Platysma
-Superior Attachment
Definition
Mandible - Inferior Border
Lower Face - Skin and Subcutaneous Tissue
Term
Platysma
-Inferior Attachment
Definition
Fascai Covering Superior Parts of Pectoralis Major and Deltoid Muscles
Term
Platysma
-Innervation
Definition
Cervical Branch of CN VII - Facial Nerve
Term
Platysma
-Action
Definition
Draws corners of the mouth inferiorly and widens it
Draws skin of the neck superiorly when teeth are clenched
Term
Sternocleidomastoid
-Superior Attachment
Definition
Temporal Bone - Mastoid Process
Occipital Bone - Superior Nuchal Line
Term
Sternocleidomastoid
-Inferior Attachment
Definition
Sternal Head: Sternum- Anterior Surface of Manubrium

Clavicular Head: Clavicle - Medial Superior Surface
Term
Sternocleidomastoid
-Innervation
Definition
CN XI - Spinal Accessory Nerve
Term
Sternocleidomastoid
-Action
Definition
Unilateral: Head Lateral Flexion with Contralateral Rotation
Bilateral: Head Extension and Neck Flexion
Term
Mylohyoid
-general location
Definition
Mandible to Hyoid
Term
Hylohyoid
-Innervation
Definition
Mylohyoid Nerve - Branch of Inferior Alveolar Nerve of CN V3 - Trigeminal Nerve, Mandibular Division
Term
Mylohyoid
-Action
Definition
Elevates Hyoid
Term
Geniohyoid
-General Location
Definition
Mandible to Hyoid
Term
Geniohyoid
-Innervation
Definition
C1 via CNXII - Hypoglossal Nerve
Term
Geniohyoid
-Action
Definition
Elevates Hyoid
Term
Stylohyoid
-General location
Definition
styloid process to hyoid
Term
Stylohyoid
-Innervation
Definition
Stylohyoid Branch of CN VII - Facial Nerve
Term
Stylohyoid
-Action
Definition
Elevates Hyoid
Term
Digastric
-General Location
Definition
Mandible and Mastoid to Hyoid
Term
Digastric
-Innervation
Definition
Anterior Belly: Mylohyoid Nerve - Branch of Inferior Alveolar Nerve of CN V3 - Trigeminal Nerve, Mandibular Division

Posterior Belly: Digastric Branch of CN VII - Facial Nerve
Term
Digastric
-Action
Definition
Elevates Hyoid
Term
Sternohyoid
-General location
Definition
Sternum to Hyoid
Term
Sternohyoid
-Innervation
Definition
C1-C3 via a branch of Ansa Cervicalis
Term
Sternohyoid
-Action
Definition
Depress Hyoid
Term
Omohyoid
-General location
Definition
Scapular Superior border to Hyoid
Term
Omohyoid
-Innervation
Definition
C1-C3 via a branch of Ansa Cervicalis
Term
Omohyoid
-Action
Definition
Depress Hyoid
Term
Sternothyroid
-General location
Definition
Sternum to Thyroid
Term
Sternothyroid
-Innervation
Definition
C2-C3 via a branch of Ansa Cervicalis
Term
Sternothyroid
-Action
Definition
Depress Hyoid
Term
Thyrohyoid
-General Location
Definition
Thyroid to Hyoid
Term
Thyrohyoid
-Innervation
Definition
C1 via CNXII - Hypoglossal Nerve
Term
Thyrohyoid
-Action
Definition
Depress Thyroid
Term
Longus Colli
-General Location
Definition
bodies and TPs of upper Cervical vertebrae to lower cervical vertebrae
Term
Longus Colli
-Innervation
Definition
Ventral Rami of C2-C6 Spinal Nerves
Term
Longus Colli
-Action
Definition
Unilateral: Neck Flexion with Contralateral Rotation
Bilateral: Neck Flexion
Term
Longus Capitis
-General location
Definition
Occipital Bone to TPs of CV3-CV6
Term
Longus Capitis
-Innervation
Definition
Ventral Rami of C1-C3 Spinal Nerves
Term
Longus Capitis
-Action
Definition
Unilateral: Head Lateral Flexion
Bilateral: Head Flexion
Term
Rectus Capitis Anterior
-General Location
Definition
Occipital Bone to CV1
Term
Rectus Capitis Anterior
-Innervation
Definition
Branches from the Loop between C1 and C2 spinal nerves
Term
Rectus Capitis Anterior
-Action
Definition
Unilateral: Head Lateral Flexion
Bilateral: Head Flexion
Term
Rectus Capitis Lateralis
-General Location
Definition
Occipital Bone to CV1 TP
Term
Rectus Capitis Lateralis
-Innervation
Definition
branches from loop between C1 and C2 spinal nerves
Term
Rectus Capitis Lateralis
-Action
Definition
Unilateral: head lateral flexion
Bilateral: Head Flexion
Term
Posterior Scalene
-General location
Definition
TPs of lower Cervical Vertibrae to 2nd Rib
Term
Posterior Scalene
-Innervation
Definition
Ventral Rami of C7 and C8 Spinal nerves
Term
Posterior Scalene
-Action
Definition
Unilateral: neck Lateral Flexion
Bilateral : Neck Flexion
Term
Middle Scalene
-General location
Definition
TPs of lower cervical vertebrae to rib 1
Term
Middle Scalene
-Innervation
Definition
Ventral Rami of Cervical Spinal Nerves
Term
Middle Scalene
-Action
Definition
Unilateral: Neck Lateral Flexion
Bilateral: Neck Flexion
Term
Anterior Scalene
-General Location
Definition
TPs of lower cervical vertebrae to 1st rib
Term
Anterior Scalene
-Innervation
Definition
Ventral Rami of C4-C6 spinal nerves
Term
Anterior Scalene
-Action
Definition
Unilateral: Neck lateral flexion with contralateral Rotation
Bilateral: Neck flexion
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