Upper Extremity Muscles Flashcards by Dylan Becker

What are the ligaments of the elbow

Ulnar collateral ligament, Radial collateral ligament, annular ligament

How well did you know this?

Not at all

Perfectly

What are the proximal row of carpals from lateral to medial

Scaphoid-Lunate-Triquetral- pisifrom

How well did you know this?

Not at all

Perfectly

What are the distal row of carpals from lateral to medial

Trapezium-trapezoid-capitate-hamate

How well did you know this?

Not at all

Perfectly

What is a good mnemonic for the carpal bones

Some Lovers Try Positions That They Can’t Handle

How well did you know this?

Not at all

Perfectly

Muscles of the superficial back and posterior shoulder include (4)

Latissimus Doris, trapezius, Rhomboid Major, Rhomboid Minor

How well did you know this?

Not at all

Perfectly

What is the Origin of latissimus dorsi

SP of T7-T12, Thoracolumbar fascia, iliac crest, ribs 10-12

How well did you know this?

Not at all

Perfectly

What is the insertion of latissimus dorsi

Floor of bicipital groove

How well did you know this?

Not at all

Perfectly

What aer the actions of latissimus Dorsi

Extends, adducts, medial rotation of humerus. Pulls body while climbing. Unilateral lateral flexion, rotation, and extension of thorax

How well did you know this?

Not at all

Perfectly

What nerve innervates Latissimus Dorsi and what segments

thoracodorasal Nerve C6-C8

How well did you know this?

Not at all

Perfectly

What is the vasculature of latissimus dorsi

Thoracodorsal artery

How well did you know this?

Not at all

Perfectly

What is the origin of trapezius

EOP, medial 1/3 of superior nuchal line, nuchal ligament, SP of C7-T12

How well did you know this?

Not at all

Perfectly

What is the insertion of trapezius

Lateral 1/3 of clavicle, acromion, and spine of scapula

How well did you know this?

Not at all

Perfectly

What are the actions of the superior trapezius fibers

Elevation of scapula

How well did you know this?

Not at all

Perfectly

What are the actions of middle trapezius fibers

Retreat the scapula

How well did you know this?

Not at all

Perfectly

What is the action of lower trapezius fibers

Depress the scapula

How well did you know this?

Not at all

Perfectly

What is the action of upper and lower trapezius fibers

Contact to laterally rotate scapula

How well did you know this?

Not at all

Perfectly

When the trapezius fixes the scapula what actions occur

Extension and lateral rotation of head

How well did you know this?

Not at all

Perfectly

What is the innervation (motor+sensory) of trapezius

Motor: Cranial Nerve XI
Sensory: C3 and C4

How well did you know this?

Not at all

Perfectly

What is the vasculature of the trapezius

Transverse cervical or superficial cervical artery

How well did you know this?

Not at all

Perfectly

What is the origin of rhomboid major and minor

Minor: nuchal ligament, SP of C7-T1
Major: SP of T2-T5

How well did you know this?

Not at all

Perfectly

What is the insertion of Rhomboid major and minor

Major: Medial border of scapula above scapular spine
Minor: medial border of scapula from spine to inferior angle

How well did you know this?

Not at all

Perfectly

What is the action of rhomboid major and minor

retraction and medial rotation of scapula

How well did you know this?

Not at all

Perfectly

What is the innervation of rhomboid major and minor

Dorsal scapular nerve C5

How well did you know this?

Not at all

Perfectly

What is the vasculature of rhomboid major and minor

Dorsal scapular artery

How well did you know this?

Not at all

Perfectly

What is the origin of levator scapulae

Posterior tubercle of TP C1-C4

What is the insertion of Levator scapulae

Superior angle of scapula

What is the action of Levator scapulae

Elevates and medial rotation of scapula

What is the innervation of levator scapulae

Dorsal scapular nerve C5, C3 and C4

what is the vasculature of levator scapulae

Dorsal scapular artery

What muscles are innervated by dorsal scapular nerve

Rhomboid major, minor and levator scapulae

Dorsal scapular artery provides vasculature to which muscles

rhomboid major, minor, and levator scapulae

What are the muscles of the posterior shoulder

Deltoid, supraspinatus, Infraspinatus, Teres major and Minor, and Subscapularis

What is the origin of Deltoid

Lateral 1/3 of clavicle, acromion, and spine of scapula

What is the insertion of deltoid

Deltoid tuberosity

What are the 3 parts of the deltoid

Anterior, middle, and posterior parts

What is the action of anterior deltoid

Flexion and medial rotation of arm, horizontal flexion and addiction

What is the action of middle deltoid

Abduction of arm

what is the action of posterior deltoid

Extension and lateral rotation of arm, horizontal abduction and lateral extension

What is the innervation of deltoid

Axillary Nerve (C5,C6)

What is the vasculature of deltoid

Posterior humeral circumflex artery

What is the origin of supraspinatus

Supraspinous fossa of scapula

What is the insertion of supraspinatus

Superior facet of greater tubercle of humerus

What is the action of supraspinatus

Assists deltoid, first 30 degrees of abduction of arm, stabilizes the glenohumeral joint

What is the innervation of supraspinatus

Suprascapular nerve C5

what is the vasculature of supraspinatus

Suprascapular artery

What is the origin of infraspinatus

infraspinous fossa of scapula

what is the insertion of infraspinatus

Middle facet of greater tubercle of humerus

What is the action of infraspinatus

Lateral rotation, stabilizes glenohumeral joint, some extension

What is the innervation of infraspinatus

Suprascapular nerve C5

what is the vasculature of infraspinatus

Suprascapular and circumflex scapular artery

Where does Teres major originate

Posterior surface of inferior angle of scapula

where does Teres major insert

Medial lip of intertubercular groove of humerus

what is the action of Teres major

Adducts and medial rotation of humerus

What is the innervation of Teres major

Lower subscapular nerve C6

what is the vasculature of Teres major

Circumflex scapular artery

Where does Teres minor sit

On top of Teres major

Where does Teres minor originate

Middle part of lateral border of scapula

what is the insertion of Teres minor

Inferior facet of greater tubercle of humerus

what is the action of Teres minor

Lateral rotation of arm, stabilizes glenohumeral joint, lateral extension of flexed arm

what is the innervation of Teres minor

Axillary nerve C5-C6

What is the vasculature of Teres minor

Circumflex scapular artery

What is the origin of subscapularis

Subscapular fossa

What is the insertion of subscapularis

Lesser tubercle of humerus

What is the action of subscapularis

Medial rotation of humerus, stabilizes glenohumeral joint, helps adduct

what is the innervation of subscapularis

Lower and upper subscapular nerves C5-C7

What are the muscles of the rotator cuff

Subscapularis, supraspinatus, infraspinatus, Teres minor

Which muscle is most commonly injured in the rotator cuff

Supraspinatus

Damage to what muscle can cause scapular winging

Serratus anterior

What is the origin of serratus anterior

External, lateral surfaces of ribs 1-8

what is the insertion of serratus anterior

Anterior medial border of scapula

What is the action of serratus anterior

Prostration and external rotation of scapula, helps depress scapula

Serratus anterior innervation is

Long thoracic nerve (C5-C7,c8

Vasculature of serratus anterior is

Lateral thoracic and Thoracodorsal artery

Serratus posterior superior is found

Deep to rhomboids

What is the origin of serratus posterior superior

Ligamentum nuchae, Sp C7-T2

What is the insertion of serratus posterior superior

Upper border of ribs 2-5

What is the action of serratus posterior superior

Elevation of ribs 2-5 (breath in)

What is the innervation of serratus posterior superior

Intercostal nerve 2-5

Where is serratus posterior inferior found

Deep to latissimus dorsi

what is the origin of serratus posterior inferior

SP of T11-12

What is the insertion of serratus posterior inferior

Inferior border of ribs 9-12

What is the action of serratus posterior inferior

Depression of ribs 9-12 (exhalation)

what is the innervation of serratus posterior inferior

Intercostal NN 9-12

What are the origins of pectoralis major

Clavicular: anterior surface of medial half of clavicle Sternal: anterior sternum, costal cartilage of ribs 1-6, aponeurosis of external oblique

What is the insertion of pectoralis major

Lateral lip of intertubercular groove of humerus

what is the action of pectoralis major

Adduction, medial rotation of humerus Brings scapula anterior and inferior

What is the innervation of pectoralis major

lateral and medial pectoral nerves Clavicular: C5-C8 Sternal: C7-C8

What is the vasculature of pectoralis major

Pectoral branch of thoracoacrominal trunk

What is the origin of pectoralis minor

Ribs 3-5,

What is the insertion of pectoralis minor

Coracoid process

What is the action of pectoralis minor

Stabilize scapula, brings it inferior and anterior

What is the innervation of pectoralis minor

Medial pectoral nerve C8-T1

What is teh vasculature of pectoralis minor

Pectoral branch of thoracoacrominal trunk

What is the origin of subclavius

Junction of rib 1 and costal cartilage

What is the insertion of subclavius

Inferior surface of middle 1/3 of clavicle

What is the action of subclavius

Anchors and depresses clavicle

What is the innervation of subclavius

Nerve to subclavius C5

What is the vasculature o subclavius

Clavicular branch of thoracoacrominal trunk

What is the origin of external intercostals

Lower border of ribs 1-11

What is the insertion of external intercostals

Upper border of ribs 2-12

what is the action of external intercostals

Elevation of ribs during inhale

Innervation and vasculature of external intercostals is

Intercostal nerves and intercostal artery

internal intercostals origin is

Superior border of ribs 2-12

Insertion of internal intercostals is

Inferior border of ribs 1-11

Action of internal intercostals is

Depression of ribs during exhalation (forced)

Innervation and vasculature of internal intercostals is

Intercostal nerve and intercosal artery

Innermost intercostals origin is

Found in lower thoracic region internal surface

Insertion of innermost intercostals is

Internal surface of ribs 2-3 below origin

Action of innermost intercostals is

Elevation of ribs to help inhale

innervation and vasculature of innermost intercostals is

Intercostal nerve and intercostal artery

What are the muscle of the posterior arm

triceps brachii and aconeus

Triceps brachii is made up of

Long, lateral, and medial head

Origin of triceps brachii long head is

Infraglenoid tubercle of scapula

Origin of triceps brachii lateral head is

Posterior surface of humerus to radial groove

Origin of triceps brachii medial head is

Posterior humerus inferior to radial groove

Insertion of triceps brachii is

Olecranon process and fascia of forearm

What is the action of triceps brachii

Extension of elbow, Long head: extends and adducts at shoulder. Help stabilize humerus

Long head of triceps brachii innervation is

Axillary nerve C5-C6

lateral and medial head of triceps brachii innervation is

Radial Nerve (C7-C8

What is the vasculature of triceps brachii

Profunda brachii artery

Aconeus origin is

Lateral epicondyle of humerus

Insertion of aconeus is

Lateral olecranon process and proximal posterior ulna

What is the action of aconeus

Helps extend elbow, stabilizes elbow

What is the innervation of aconeus

Radial Nerve (c7-T1)

What is vasculature of anconeus

Profunda brachii, recurrent interosseous artery

Upper Extremity Muscles Flashcards

(125 cards)