Shared Flashcard Set

Details

Muscles
Origin and Insertion + Action
12
Anatomy
Professional
09/05/2008

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

 

 

 

Descending Pectorals

Definition

 

 

Origin: First Sternebra

 

Insertion: Crest of the greater tubercle

 

Action - to adduct when not bearing weight, prevent abduction when weight-bearing

 

 

 

Term

 

 

 

 

Transverse Pectorals

Definition

 

Origin: First to part of 3rd sternebra

 

Insertion: crest of greater tubercle

 

Action: adduct when not wt bearing, prevent abduct when wt. bearing

 

 

 

 

Term

 

 

 

 

Deep Pectorals

 

Definition

 

 

Origin: Ventral Sternum

 

Insertion: Lesser tubercle of the humerus

 

Action: Limb extended - pulls trunk cranially and extends the shoulder joint.  Draw limb caudal and flex shoulder joint. Adduct Limb

Term

 

 

 

 

 

Brachiocephalicus

 

(Cleidobrachialis and Cleidocephalicus (cervicalis and mastoideus), Divided by Clavicular tendon)

Definition

Origin: Clavicular tendon

 

Insertion: Cleiodbrachialis (distal end of humerus), Cleidcephalicus Cervical (occipital bone) Cleidocephalicus Mastoid (temporal bone mastoid)

 

Action:  advance the limb, extend shoulder joint, turn neck/head side to side

 

 

 

Term

 

 

 

 

Sternocephalicus

 

(sternomastoideus and sterno-occipitalis)

Definition

 

Origin - First sternebra (manubrium)

 

Insertion - Mastoid of temporal bone, Nuchal crest of occipital bone

 

Action - to draw head and neck to side

Term

 

 

 

 

Sternohyoideus

Definition

 

 Origin: first sternebra

 

Insertion: basihyoid bone

 

Action: Pull tongue and larynx caudal

 

 

Term

 

 

 

 

Sternothyroideus

Definition

 

Origin: First costal cartilage

 

Insertion: Caudolateral surface of thyroid cartilage

 

Action: draw tongue and larynx caudally

 

 

 

Term

 

 

 

 

Omotransversarius

Definition

 

 

Origin: wing of atlas? and cervical vertebrae

 

Insertion: Distal end of scapular spine

 

Action: advance limb, flex neck laterally

Term

 

 

 

 

 

Trapezius

Definition

 

Origin: Median raphe of neck and supraspinus ligament (C3-T9)

 

 Insertion: Spine of scapula

 

Action: Elevate and abduct the forelimb

 

Term

 

 

 

 

Rhomboideus

 

-Capitis

-Cervicis

-Thoracis

Definition

 

Origin: Nuchal crest of occipital, median raphe, T1-T7

 

Insertion: Dorsal border of scapula

 

 

Action: elevate forelimb, draw scapula against trunk

Term

 

 

 

 

 

Latissimus Dorsi

Definition

 

 

Origin: Lumbar +Last 7-8 Thoracic, last 2 or 3 ribs

 

Insertion: Teres major tuberosity

 

Action: digging (draw free limb caudal), flex shoulder joint 

Term

 

 

 

Serratus ventralis cervicis

 

Serratus ventralis thoracis

Definition

 

Origin: last 5 cervical vertebrae and first 7-8 ribs ventral to their middle

 

Insertion: dorsomedial third of scapula (serrated face)

 

Action: support trunk, depress scapula

 

 

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