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Anatomy Test 2
Neck, Back and Chest muscles
161
Anatomy
Graduate
07/05/2010

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Cards

Term
SCM : Origin
Definition
Sternum & Clavicle
Term
SCM : Insertion
Definition
Mastoid Process and Temporal Bone
Term
SCM : Action
Definition
Flexes and Laterally Rotates Head
Term
SCM : Innervation
Definition
CN IX
Term
Trapezius : Origin
Definition
Occipital Bone, C7 Spinous Process & All thoracic vertebrae
Term
Trapezius : Insertion
Definition
Scapula & Clavicle
Term
Trapezius : Action
Definition
Stabilizes, raises, retracts & rotates scapula
Term
Trapezius : Innervation
Definition
CN XI
Term
Levatator Scapulae : Origin
Definition
Transverse Process C1-C4
Term
Levatator Scapulae : Insertion
Definition
Scapula
Term
Levatator Scapulae : Action
Definition
Elevates/adducts scapula
Term
Levatator Scapulae : Innveration
Definition
Cervical Nerves C3-C5
Term
Scalenus Posterior : Origin
Definition
Transverse Process of Cervical Vertebrae
Term
Scalenus Posterior : Insertion
Definition
First two ribs
Term
Scalenus Posterior : Action
Definition
Elevate first two ribs
Term
Scalenus Posterior : Innervation
Definition
C7 & C8
Term
Scalenus Medius : Origin
Definition
Transverse Process of Cervical Vertebrae
Term
Scalenus Medius : Insertion
Definition
First two ribs
Term
Scalenus Medius : Action
Definition
Raise first 2 ribs
Term
Scalenus Medius : Innervation
Definition
C3-C8
Term
Scalenus Anterior : Origin
Definition
Transverse Process of Cervical Vertebrae
Term
Scalenus Anterior : Insertion
Definition
First 2 ribs
Term
Scalenus Anterior : Action
Definition
Raise first 2 ribs
Term
Scalenus Anterior : Innervation
Definition
C5-C7
Term
Sternohyoid : Origin
Definition
Manubrium
Term
Sternohyoid : Insertion
Definition
Hyoid Bone
Term
Sternohyoid : Action
Definition
Depresses larynx & Hyoid Bone
Term
Sternohyoid : Innervation
Definition
C1-C3
Term
Superior Omohyoid : Origin
Definition
Scapula
Term
Superior Omohyoid : Insertion
Definition
Hyoid Bone
Term
Superior Omohyoid : Action
Definition
Depresses Larynx and Hyoid Bone
Term
Superior Omohyoid : Innervatoin
Definition
C1-C3
Term
Sternothyroid : Origin
Definition
Manubrium
Term
Sternothyroid : Insertion
Definition
Thyroid Cartilage
Term
Sternothyroid : Action
Definition
Pulls Larynx and Hyoid Bone Inferior
Term
Sternothyroid : Innervation
Definition
C1-C3
Term
Stylohyoid : Origin
Definition
Temporal Bone
Term
Stylohyoid : Insertion
Definition
Hyoid Bone
Term
Stylohyoid : Action
Definition
Elevates and Retracts Hyoid Bone
Term
Stylohyoid : Innervation
Definition
CN VII
Term
Mylohyoid : Origin
Definition
Mandible
Term
Mylohyoid : Insertion
Definition
Hyoid Bone
Term
Mylohyoid : Action
Definition
Form floor of mouth
Term
Mylohyoid : Innervation
Definition
CN V : V3
Term
Geniohyoid : Origin
Definition
Mandible
Term
Geniohyoid : Insertion
Definition
Hyoid Bone
Term
Geniohyoid : Action
Definition
Pulls hyoid superior & anterior
Term
Geniohyoid : Innervation
Definition
CN XII
Term
Digastric (anterior belly) : Origin
Definition
Mandible
Term
Digastric (anterior belly) : Insertion
Definition
Hyoid Bone
Term
Digastric (anterior belly) : Action
Definition
Open Mouth & Depress Mandible
Term
Digastric (anterior belly) : Innervation
Definition
CN V
Term
Digastrc (Posterior Belly) : Origin
Definition
Mastoid Process
Term
Digastric (posterior belly) : Insertion
Definition
Hyoid
Term
Digastric (posterior belly) : Action
Definition
Open mouth & Depress mandible
Term
Digastric (posterior belly) : Innervation
Definition
CN VII
Term
Thyrohyoid : Origin
Definition
Thryoid Cartilage
Term
Thyrohyoid : Insertion
Definition
Hyoid Bone
Term
Thyrohyoid : Action
Definition
Depress hyoid bone & Elevate Larynx
Term
Thyrohyoid : Innervation
Definition
C1-C2
Term
Pharyngeal Constrictor : Origin
Definition
Mandible, Medial Pterygoid, Hyoid bone, Laryngeal cartilage 
Term
Pharyngeal Constrictor : Insertion
Definition
Raphe of pharynx
Term
Pharyngeal constrictor : Action
Definition
Constrict pharynx during swallowing
Term
Pharyngeal Constrictor : Innervation
Definition
CN X
Term
Erector Spinae - Iliocostalis : Origin
Definition
Iliac Crest and Sacrum
Term
Erector Spinae - Iliocostalis : Insertion
Definition
Angles of the Ribs
Term
Erector Spinae - Iliocostalis : Action
Definition
Extend & Laterally Bend Trunk & Neck
Term
Erector Spinae - Iliocostalis : Innervation
Definition
C4-S5
Term
Erector Spinae-Longissmus : Origin
Definition
Transvers process at inferior vertebral levels
Term
Erector Spinae-Longissmus : Insertion
Definition
Transverse process at superior vertebral levels & Mastoid Process
Term
Erector Spinae-Longissmus : Action
Definition
Extends & Laterally bends trunk, neck & head.
Term
Erector Spinae-Longissmus : Innervation
Definition
C1-S1
Term
Errector Spinae-Spinalis : Origin
Definition
Spinous process at inferior vertebral level.
Term
Errector Spinae-Spinalis : Insertion
Definition
Thoracic Vertebrae 1-4
Term
Errector Spinae-Spinalis : Action
Definition
Extends & Laterally Bends Trunk & ***Rotates trunk to opposite side***
Term
Errector Spinae-Spinalis : Innervation
Definition
C1-T12
Term
Semispinalis Cervicis : Origin
Definition
Transverse process of C7-T12 (vertebrae)
Term
Semispinalis Cervicis : Insertion
Definition
T1-T4 (vertebrae)
Term

 

Semispinalis Cervicis : Action

Definition

Extends & Laterally bends trunk & neck

***Rotates Trunk & Neck to opposite side***

Term
Semispinalis Cervicis : Innervation
Definition
C1-T12
Term
Semispinalis Capitus : Origin
Definition
Transverse Process of C7-T12 (vertebrae)
Term
Semispinalis Capitus : Insertion
Definition
Occipital Bone
Term
Semispinalis Capitus : Action
Definition

Extends & Laterally bends trunk & neck.

***Rotates head and neck to opposite side***

Term
Semispinalis Capitus : Innervation
Definition
C1-T12
Term
Quadratus Lumborum : Origin
Definition
Iliac Crest
Term
Quadratus Lumborum : Insertion
Definition
Transverse process of L1-L4 (vertebrae) & 12th rib
Term
Quadratus Lumborum : Action
Definition
Flexes trunk laterally & assist with forced inspiration
Term
Quadratus Lumborum : Innervation
Definition
T12
Term
Splenius Capitis : Origin
Definition
C7-T6 (vertebrae)
Term
Splenius Capitis : Insertion
Definition
Mastoid Process & Occipital Bone
Term
Splenius Capitis : Action
Definition
Extend & Hyperextend Head; Laterally bend head & neck; Rotate head to same side
Term
Splenius Capitis : Innervation
Definition
C2-C6
Term
Splenius Cervicis : Origin
Definition
C7-T6 (vertebrae)
Term
Splenius Cervicis : Insertion
Definition
C2-C4 (vertebrae)
Term
Splenius Cervicis : Action
Definition
Extend & Hyperextend Head; Laterally bend Head & Neck; Rotates head to same side
Term
Splenius Cervicis : Innervation
Definition
C2-C6
Term
Trapezius : Origin
Definition
Occipital Protruberance & Spinous processes of C7-T12 (vertebrae)
Term
Trapezius : Insertion
Definition
Scapula & Lateral1/3 of clavicle
Term
Trapezius : Action
Definition
Stabalize, Retracts, Raises & Rotates Scapula
Term
Trapezius : Innervation
Definition
CN XI, C3 & C4
Term
Levatator Scapulae : Origin
Definition
Transverse process of C1-C4 (vertebrae)
Term
Levatator Scapulae : Insertion
Definition
Scapula
Term
Levatator Scapulae : Action
Definition
Elevate & Adduct Scapula
Term
Levatator Scapulae : Innervation
Definition
C3-C5
Term
Rhomboid Major : Origin
Definition
Spinous Process T2-T5
Term
Rhomboid Major : Insertion
Definition
Scapula
Term
Rhomboid Major : Action
Definition
Stabalize Scapula; Retract, Elevate & Rotates Scapula Inferiorly
Term
Rhomboid Major : Innervation
Definition
C4-C5
Term
Rhomboid Minor : Origin
Definition
Spinous Process C7-T1
Term
Rhomboid Minor : Insertion
Definition
Scapula
Term
Rhomboid Minor : Action
Definition
Stabalize Scapula; Retracts, Elevates & Rotates Scapula Inferiorly
Term
Rhomboid Minor : Innervation
Definition
C4 & C5
Term
Latissimus Dorsi : Origin
Definition
Spinous Process T7 (vertebrae) to sacrum, iliac crest & lower three ribs
Term
Latissimus Dorsi : Insertion
Definition
Humerus
Term
Latissimus Dorsi : Action
Definition
Extends and Adducts Arm; Medial rotation of shoulder
Term
Latissimus Dorsi : Innervation
Definition
C6-C8 (posterior cord of Brachial Plexus)
Term
External Intercostal - Origin
Definition
Inferior border of rib above
Term
External Intercostals : Insertion
Definition
Superior border of rib below
Term
External Intercostals : Action
Definition
Elevate ribs and assist with inspiration
Term
External Intercostals : Innervation
Definition
T1-T11
Term
Internal Intercostals : Origin
Definition
Superior border of rib below
Term
Internal Intercostals : Insertion
Definition
Inferior border of rib above
Term
Internal Intercostals : Action
Definition
Depress rib cage and aid in forced expiration
Term
Internal Intercostals : Innervation
Definition
T1-T11
Term
Diaphragm : Origin
Definition
Inferior internal surface of the rib cage & sternum; costal cartilage of the last 6 ribs; and lumbar vertebrae L1-L3
Term
Diaphragm : Insertion
Definition
Central Tendon of Diaphragm
Term
Diaphragm : Action
Definition
Inspiration
Term
Diaphragm : Innervation
Definition
Phrenic Nerve
Term
Pectoralis Major : Origin
Definition
Clavicle; manubrium & Body of sternum; Ribs 1-6
Term
Pectoralis Major : Insertion
Definition
Humerus
Term
Pectoralis Major : Action
Definition
Flexes & adducts arm; medially rotates the arm; Pulls rib cage upward & aids in forced inspiration
Term
Pectoralis Major : Innervation
Definition
C5-T1
Term
Pectoralis Minor : Origin
Definition
Ribs 3-5
Term
Pectoralis Minor : Insertion
Definition
Scapula
Term
Pectoralis Minor : Action
Definition
Draws rib cage superiorly; draws scapula forward & inferior
Term
Pectoralis Minor : Innervation
Definition
C6-C8
Term
Subclavius : Origin
Definition
Rib 1
Term
Subclavius : Insertion
Definition
Clavicle
Term
Subclavius : Action
Definition
Stabilize & depress pectoral girdle
Term
Subclavius : Innervation
Definition
C5-C6
Term
Serratus Anterior : Origin
Definition
Ribs 1-8
Term
Serratous Anterior : Insertion
Definition
Scapula
Term
Serratous Anterior : Action
Definition
Rotates scapula laterally & superiorly; abduction & raising the arm; horizontal arm movement
Term
Serratous Anterior : Innervation
Definition
C5-C7
Term
Serratous Posterior Superior : Origin
Definition
Spinous Process C7-T3
Term
Serratous Posterior Superior : Insertion
Definition
Superior border of Ribs 2-5
Term
Serratous Posterior Superior : Action
Definition
Elevate ribs to aid inspiration
Term
Serratous Posterior Superior : Innervation
Definition
T2-T5
Term
Serratous Posterior Inferior : Origin
Definition
T11-L3 (vertebrae)
Term
Serratous Posterior Inferior : Insertion
Definition
Inferior borders of ribs 9-12
Term
Serratous Posterior Inferior: Action
Definition
Depress ribs aiding in expiration
Term
Serratous Posterior Inferior : Innervation
Definition
T9-T12
Term
Subcostalis : Origin
Definition
Angle of ribs
Term
Subcostalis : Insertion
Definition
Angle of ribs 1-2
Term
Subcostalis : Action
Definition
Compress intercostal space to aid in expiration
Term
Subcostalis : Innervation
Definition
T1-T11
Term
Transversus Thoracis : Origin
Definition
Posterior Sternum
Term
Transversus Thoracis : Insertion
Definition
Costal cartilage of ribs 2-6
Term
Transversus Thoracis : Action
Definition
Compress thorax to aid in expiration
Term
Transversus Thoracis : Innervation
Definition
T2-T6
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