Shared Flashcard Set

Details

Shoulder
Muscles and Angles
66
Medical
Professional
08/09/2011

Additional Medical Flashcards

 


 

Cards

Term
Origin of Trapezius
Definition
Occipital bone, C1-7 spinous process via nuchal ligament, T1-12 spinous process
Term

Insertion of Trapezius

Definition
Clavicle (lateral part), Acromion, Scapular spine
Term

Action of Trapezius

Definition

Draw scapula upward

Rotate glenoid cavity inferiorly

Tilt head to same side

Rotate head to opposite side

Draw scapula medially and downward

Steady entire scapula on thorax

 

(Basically: rotation, retraction, elevation, and depression of scapula)

Term

Origin of Sternocleidomastoid

Definition
Manibrium and Clavicle (medial part)
Term

 

Insertion of Sternocleidomastoid

 

Definition
Mastoid process and superior nuchal line
Term

 

Origin of Serratus Anterior

 

Definition
Ribs 1-9
Term

 

Insertion of Serratus Anterior

 

Definition
Superior Angle, Medial Border, and Inferior Angle of Scapula
Term

 

Action of Serratus Anterior

 

Definition

Draw scapula laterally forward

Elevate ribs

Rotate scapula and draw inferior angle laterally forward (rotate glenoid cavity superiorly)

Lower raised arm

Term

 

Origin of Subclavius

 

Definition
Rib 1
Term

 

Insertion of Subclavius

 

Definition
Inferior surface of clavicle
Term

 

Action of Subclavius

 

Definition
Steadies clavicle in sternoclavicular joint
Term

 

Origin of Pectoralis minor

 

Definition
Ribs 3-5
Term

 

Insertion of Pectoralis minor

 

Definition
Coracoid process
Term

 

Action of Pectoralis minor

 

Definition

Draw scapula downward; inferior angle moves posteromedially; lower raised arm, rotate glenoid inferiorly

Assist in respiration

 

(Basically: stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall)

Term

 

Origin of Levator scapulae

 

Definition
Transverse process of C1-4
Term
Insertion of Levator scapulae
Definition
Superior angle of scapula
Term
Action of Levator scapulae
Definition

Draw scapula medially upward while moving inferior angle medially; return raise arm to neutral

Incline neck toward same side

Term
Origin of Rhomboid
Definition

Minor: Spinous process of C6-7

Major: Spinous process of T1-4

Term

Insertion of Rhomboid

Definition
Medial border of scapula
Term

Action of Rhomboid

Definition

Steadies scapula

Draw scapula medially upward

Term

Origin of Supraspinatus

Definition
Supraspinous fossa of scapula
Term

 

Insertion of Supraspinatus

 

Definition
Greater tuberosity
Term

 

Action of Supraspinatus

 

Definition
Abduction
Term

 

Origin of Infraspinatus

 

Definition
Infraspinous fossa of scapula
Term

 

Insertion of Infraspinatus

 

Definition
Greater tuberosity
Term

 

Action of Infraspinatus

 

Definition
External Rotation
Term

 

Origin of Teres minor

 

Definition
Lateral border of scapula
Term

 

Insertion of Teres minor

 

Definition
Greater tuberosity
Term

 

Action of Teres minor

 

Definition

External rotation

Weak Adduction

Term

 

Origin of Subscapularis

 

Definition
Subscapular fossa of scapula
Term

 

Insertion of Subscapularis

 

Definition
Lesser Tuberosity
Term

 

Action of Subscapularis

 

Definition
Internal Rotation
Term

 

Origin of Deltoid

 

Definition
Clavicle (lateral part), Acromion, Scapular spine
Term

 

Insertion of Deltoid

 

Definition
Deltoid tuberosity of humerus
Term

 

Action of Deltoid

 

Definition

Clavicular part: Anteversion, Internal rotation, Adduction

Acromial part: Abduction

Spinal part: Retroversion, external rotation, adduction

Term

 

Origin of Latissimus dorsi

 

Definition
T7-9, Thoracolumbar fascia of all Lumbar and Sacrum, Iliac crest (posterior part), Ribs 9-12, Inferior angle of scapula
Term

 

Insertion of Latissimus dorsi

 

Definition
Lesser tuberosity
Term

 

Action of Latissimus dorsi

 

Definition

Internal Rotation

Adduction

Retroversion

Respiration

Term

 

Origin of Teres major

 

Definition
Inferior angle of scapula
Term
Insertion of Teres major
Definition
Lesser tuberosity
Term
Action of Teres major
Definition

Internal rotation

Adduction

Retroversion

Term
Origin of Pectoralis major
Definition
Clavicle (medial), Sternum, Ribs 2-6 (costal cartilage), Anterior layer of rectus sheath
Term

Insertion of Pectoralis major

Definition
Greater tuberosity
Term

Action of Pectoralis major

Definition

Adduction

Internal rotation

Anteversion

Assist respiration

Term

Origin of Coracobrachialis

Definition
Coracoid process
Term

 

Insertion of Coracobrachialis

 

Definition
Humerus
Term

 

Action of Coracobrachialis

 

Definition
Anteversion, adduction, internal rotation
Term

 

Origin of Biceps brachii

 

Definition

Supraglenoid tubercle of scapula

Coracoid process

Term

 

Insertion of Biceps brachii

 

Definition
Radial tuberosity
Term

 

Action of Biceps brachii

 

Definition

Flexion

Supination

Stabilize humeral head during deltoid contraction

Abduction and internal rotation of humerus

Term
Primary Flexor
Definition
Ant. Deltiod C5 Coracobrachialis   C5-6
Term
Secondary Flexor
Definition
Pectoralis major, Biceps
Term
Primary Extensor
Definition
Latissimusdorsi C6-8, Teres Major C5-6, Posterior Deltoid C5-6
Term
Secondary Extensor
Definition
Teres minor, Long head of Triceps
Term
Primary Abductor
Definition
Middle deltoid C5-6, SupraspinatusC5-6
Term
Secondary Abductor
Definition
Anterior andposterior deltoid, Serratus anterior. 
Term
Primary Adductor
Definition
Pectoralis major C5-T1,                            Latissimusdorsi C6-8
Term
Secondary Adductor
Definition

Teres major

Anterior deltoid

Term
Primary External Rotator
Definition

Infraspinatus C5-6  

Teres Minor C5

Term
Secondary External Rotator
Definition
Posterior deltoid.
Term
Primary internal rotator
Definition
Subscapularis C5-6,

  Pectoralis major C5-T1,               Latissimusdorsi C6-8,

  Teres major C5-6

Term
Secondary Internal Rotator
Definition
Anterior Deltoid
Term
Primary Scapular Elevator
Definition

Trapezius CN XI 

Levator scapulae C3-5

Term
Secondary Scapular Elevators-and primary retractors- 
Definition
Rhomboids
Term
Scapular Protractor
Definition
Serratus anterior C5-7 long thoracic nerve
Term
Action of Sternocleidomastoid
Definition

Tilt head to same side

Rotate head on opposite side

Extend head

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