Lab Practical 2

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t

t/f what's the origin and insertion of ascending trapezius? spinous processes of T5-T12; upper crest and tubercle of scapular spine

t

t/f what's the origin and insertion of descending trapezius? external occipital protuberance, ligamentum nuchae, and spinous processes of C1-C7; lateral 1/3 of clavicle

t

t/f what's the origin and insertion of latissimus dorsi? inferior angle of scapula, 9th-12th ribs, spinous processes of T7-T12, thoracolumbar fascia, posterior 1/3 of iliac crest; crest of lesser tubercle of humerus and intertubercular groove

t

t/f what's the origin and insertion of transverse trapezius? aponeurosis of spinous processes at T1-T4; medial side of acromion

radial

the ___ nerve innervates triceps brachii, brachioradialis, anconeus, extensor carpi radialis, supinator, extensor digitorum, extensor digit minimi, extensor carpi ulnaris, abductor policies longus, extensor pollicis braves, and extensor indicis; originates from medial and lateral cords

adduction, internal rotation, and flexion of arm; assists in respiration when shoulder is fixed

what are the primary actions and assistant action of pectoralis major?

subclavius

what's the muscle? O: costal cartilage and 1st rib I: acromial end of clavicle PA/AM: draws clavicle downward and forward and elevates 1st rib NS: subclavian nerve BS: clavicular branch of thoracoacromial artery

pectoralis major

what's the muscle? O: medial half of clavicle, manubrium, body of sternum, costal cartilages of 1st-6th ribs, and anterior layer of rectus sheath I: crest of greater tubercle of humerus PM/AM: adduction, internal rotation, and flexion of arm; assists in respiration when shoulder is fixed NS: medial and lateral pectoral nerves and brachial plexus (C5,T1) BS: pectoral branch of thoracoacromial artery, deltoid branch of thoracoacromial artery, anterior intercostal arteries, and perforating branches of internal thoracic artery

rhomboid minor

what's the muscle? O: spinous processes of C7 and T1 and inferior ligament nuchae I: medial margin of scapula inferior to spine NS: dorsal scapular nerve (C4-C5) BS: dorsal scapular artery PM/AM: stabilization, retraction, elevation, and internal rotation of scapula

supraspinatus

what's the muscle? O: supraspinous fossa of scapula I: greater tubercle of humerus NS: suprascapular nerve BS: suprascapular artery PM/AM: abduction of arm

subscapular nerve

what's the nerve supply of subscapularis?

suprascapular nerve

what's the nerve supply of supraspinatus?

subscapular nerve

what's the nerve supply of teres major?

axillary nerve

what's the nerve supply of teres minor?

accessory nerve (CN XI)

what's the nerve supply of trapezius?

acromion, crest of spine of scapula, and lateral 1/3 of clavicle; deltoid tuberosity of humerus

what's the origin and insertion of deltoid?

4th-9th ribs; medial margin of costal surface of scapula

what's the origin and insertion of inferior serratus anterior?

infraspinous fossa of scapula; greater tubercle of humerus

what's the origin and insertion of infraspinatus?

2nd-3rd ribs; medial margin of costal surface of scapula

what's the origin and insertion of intermediate serratus anterior?

external occipital protuberance

what's the origin of descending trapezius muscle? (1 of 3)

external rotation of arm

what's the primary action of infraspinatus?

rotator

___ cuff of shoulder is made up of: subscapularis, supraspinatus, infraspinatus, and teres minor; all of them except the supraspinatus rotate the arm

triangular

___ space is bordered by the teres major inferiorly, long head of triceps laterally, and lower border of teres minor superiorly; through it passes the scapular circumflex artery

quadrangular

___ space is found in the shoulder girdle and is formed by: teres major inferiorly, long head of triceps medially, teres minor posteriorly, subscapularis anteriorly, and surgical neck of humerus laterally; through it pass the: axillary nerve and posterior circumflex humeral artery and vein

lumbar

___ triangle's boundaries are latissimus dorsi and external oblique

t

t/f within triangle of auscultation, intercostal space 6 has no overlying muscles, this area is particularly well suited for auscultation (listening to sounds produced by thoracic organs, particularly the lungs)

musculocutaneous

the ___ nerve innervates coracobrachialis, biceps brachii, and brachialis; originates from lateral cord

axillary

the ___ nerve innervates deltoid and teres minor; originates from posterior cord

ulnar

the ___ nerve innervates flexor carpi ulnaris, flexor digitorum profundus, adductor pollicis, flexor pollicis brevis, palmar interossei, abductor digiti minimi, opponens digiti minimi, dorsal interossei, and 3rd and 4th lumbricals; originates from medial cord

median

the ___ nerve innervates pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, flexor pollicis longus, pronator quadratus, abductor pollicis brevis, opponens, and 1st and 2nd lumbricals; originates from medial and lateral cords

axillary; posterior circumflex humeral

the quadrangular space is found in the shoulder girdle and is formed by: teres major, long head of triceps, teres minor, subscapularis , and surgical neck of humerus and contains the ___ nerve and the ___ ____ ___ artery and vein

scapular circumflex artery

the triangular space (teres major, long head of triceps, and teres minor) contains the ___ ___ ___

latissimus dorsi; trapezius; rhomboid major

three boundaries of triangle of auscultation are ____ ___; ____; and ____ ____

auscultation

triangle of ____ is bounded by latissimus dorsi, trapezius, and rhomboid major

pectoral branch of thoracoacromial artery, deltoid branch of thoracoacromial artery, anterior intercostal arteries, and perforating branches of internal thoracic artery

what are the arteries that supply pectoralis major?

pectoral branch of thoracoacromial artery and deltoid branch of thoracoacromial artery

what are the arteries that supply pectoralis minor?

medial and lateral pectoral nerves (C6-T1)

what are the nerves that supply pectoralis minor?

medial and lateral pectoral nerves and branchial plexus

what are the nerves that supply pectorals major?

long thoracic nerve and brachial plexus (C5-C7)

what are the nerves that supply serratus anterior?

extension, adduction, and internal rotation of arm; aids in respiration

what are the primary actions and assistant action of latissimus dorsi?

pulls scapula medially, forwards, and downwards; aids in respiration

what are the primary actions and assistant action of pectoralis minor?

stabilization, retraction, elevation, and internal rotation of scapula

what are the primary actions of both rhomboid minor and rhomboid major?

draws clavicle downwards, forwards, and elevates 1st rib

what are the primary actions of subclavius?

internal rotation and extension of arm

what are the primary actions of subscapularis?

internal rotation, adduction, and extension of arm

what are the primary actions of teres major?

external rotation and adduction of arm

what are the primary actions of teres minor?

retraction, superior rotation, elevation, and depression of scapula

what are the primary actions of trapezius?

teres major

what muscle is often called the latissimus dorsi's little helper?

dorsal scapular artery

what's the blood supply for both rhomboid minor and rhomboid major?

posterior circumflex humeral artery

what's the blood supply of deltoid?

circumflex scapular artery and suprascapular artery

what's the blood supply of infraspinatus?

thoracodorsal artery

what's the blood supply of latissimus dorsi?

transverse cervical artery and ascending cervical artery

what's the blood supply of levator scapulae?

lateral thoracic artery

what's the blood supply of serratus anterior?

clavicular branch of thoracoacromial artery

what's the blood supply of subclavius?

subscapular artery

what's the blood supply of subscapularis?

suprascapular artery

what's the blood supply of supraspinatus?

circumflex scapular artery and subscapular artery

what's the blood supply of teres major?

circumflex scapular artery and posterior circumflex humeral artery

what's the blood supply of teres minor?

transverse cervical artery

what's the blood supply of trapezius?

upper crest and tubercle of scapular spine

what's the insertion of ascending trapezius muscle?

lateral 1/3 of clavicle

what's the insertion of descending trapezius muscle?

crest of lesser tubercle of humerus and intertubercular groove

what's the insertion of latissimus dorsi muscle?

medial side of acromion

what's the insertion of transverse trapezius muscle?

trapezius

what's the muscle? O: (descending) external occipital protuberance, ligamentum nuchae and spinous processes of C1-C7 O: (transverse) aponeurosis of spinous processes of T1-T4 O: (ascending) spinous processes of T5-T12 I: (descending) lateral 1/3 of clavicle I: (transverse) medial side of acromion I: (ascending) upper crest and tubercle of scapular spine NS: accessory nerve (CN XI) BS: transverse cervical artery PM/AM: retraction, superior rotation, elevation, and depression of scapula

serratus anterior

what's the muscle? O: (superior) 1st and 2nd ribs O: (intermediate) 2nd and 3rd ribs O: (inferior) 4th and 9th ribs I: medial margin of costal surface of scapula NS: long thoracic nerve and brachial plexus (C5-C7) BS: lateral thoracic artery PM/AM: superior external rotation of scapula; draws scapula internally and forwards, lowers the arm from raised position, elevation of ribs

pectoralis minor

what's the muscle? O: 3rd-5th ribs I: coracoid process of scapula PM/AM: pulls scapula medially, forwards, and downwards; aids in respiration NS: medial and lateral pectoral nerves (C6-T1) BS: pectoral branch of thoracoacromial artery and deltoid branch of thoracoacromial artery

deltoid

what's the muscle? O: acromion, crest of spine of scapula, and lateral 1/3 of clavicle I: deltoid tuberosity of humerus NS: axillary nerve BS: posterior circumflex humeral artery PM/AM: abduction of arm; flexion and internal rotation via anterior fibers, external rotation and extension via posterior fibers

teres major

what's the muscle? O: dorsal surface of interior angle of scapula I: crest of lesser tubercle of humerus NS: subscapular nerve BS: circumflex scapular artery and subscapular artery PM/AM: internal rotation, adduction, and extension of arm known as the latissimus dorsi little helper

latissimus dorsi

what's the muscle? O: inferior angle of scapula, 9th-12th ribs, spinous processes of T7-T12, thoracolumbar fascia, posterior 1/3 of iliac crest I: crest of lesser tubercle of humerus and intertubercular groove NS: thoracodorsal nerve BS: thoracodorsal artery PM/AM: extension, adduction, and internal rotation of arm; aids in respiration

infraspinatus

what's the muscle? O: infraspinous fossa of scapula I: greater tubercle of humerus NS: suprascapular nerve (C4-C6) BS: circumflex scapular artery and suprascapular artery PM/AM: external rotation of arm

rhomboid major

what's the muscle? O: spinous processes of T2-T5 I: medial margin of scapula inferior to spine NS: dorsal scapular nerve (C4-C5) BS: dorsal scapular nerve PM/AM: stabilization, retraction, elevation, and internal rotation of scapula

subscapularis

what's the muscle? O: subscapular fossa of scapula I: lesser tubercle of humerus NS: subscapular nerve BS: subscapular artery PM/AM: internal rotation and extension of arm

teres minor

what's the muscle? O: upper 2/3 of lateral margin of scapula I: greater tubercle of humerus NS: axillary nerve BS: circumflex scapular artery and posterior circumflex humeral artery PM/AM: external rotation and adduction of arm

levator scapulae

what's the muscle? O: transverse processes of C1-C4 I: superior angle of medial border of scapula NS: dorsal scapular nerve (C5) BS: transverse cervical artery, ascending cervical artery PM/AM: involved in flexing head and neck laterally

dorsal scapular nerve (C4-C5)

what's the nerve supply for both rhomboid minor and rhomboid major?

axillary nerve

what's the nerve supply of deltoid?

suprascapular nerve (C4-C6)

what's the nerve supply of infraspinatus?

thoracodorsal nerve

what's the nerve supply of latissimus dorsi?

dorsal scapular nerve (C5)

what's the nerve supply of levator scapulae?

subclavian nerve

what's the nerve supply of subclavius?

transverse processes of C1-C4; superior angle of medial border of scapula

what's the origin and insertion of levator scapulae?

3rd-5th ribs; coracoid process of scapula

what's the origin and insertion of pectoralis minor?

spinous processes of T2-T5; medial margin of scapula inferior to spine

what's the origin and insertion of rhomboid major?

spinous processes of C7 and T1 and inferior ligament nuchae; medial margin of scapula inferior to spine

what's the origin and insertion of rhomboid minor?

costal cartilage and 1st rib; acromial end of clavicle

what's the origin and insertion of subclavius?

subscapular fossa of scapula; lesser tubercle of humerus

what's the origin and insertion of subscapularis?

1st-2nd ribs; medial margin of costal surface of scapula

what's the origin and insertion of superior serratus anterior?

supraspinous fossa of scapula; greater tubercle of humerus

what's the origin and insertion of supraspinatus?

dorsal surface of inferior angle of scapula; crest of lesser tubercle of humerus

what's the origin and insertion of teres major?

upper 2/3 of lateral margin of scapula; greater tubercle of humerus

what's the origin and insertion of teres minor?

spinous processes of T5-T12

what's the origin of ascending trapezius muscle?

ligamentum nuchae

what's the origin of descending trapezius muscle (2 of 3)

spinous processes of C1-C7

what's the origin of descending trapezius muscle (3 of 3)

inferior angle of scapula

what's the origin of latissimus dorsi muscle? (1 of 5)

9th-12th ribs

what's the origin of latissimus dorsi muscle? (2 of 5)

spinous processes of T7-T12

what's the origin of latissimus dorsi muscle? (3 of 5)

thoracolumbar fascia

what's the origin of latissimus dorsi muscle? (4 of 5)

posterior 1/3 of iliac crest

what's the origin of latissimus dorsi muscle? (5 of 5)

anterior layer of rectus sheath

what's the origin of pectoralis major (5 of 5)

medial half of clavicle

what's the origin of pectoralis major? (1 of 5)

manubrium

what's the origin of pectoralis major? (2 of 5)

body of sternum

what's the origin of pectoralis major? (3 of 5)

costal cartilages of 1st-6th ribs

what's the origin of pectoralis major? (4 of 5)

aponeurosis of spinous processes of T1-T4

what's the origin of transverse trapezius muscle?

abduction of arm; flexion and internal rotation via anterior fibers, extension and external rotation via posterior fibers

what's the primary action and assistant actions of deltoid?

superior external rotation of scapula, draws scapula internally and forwards, lowers the arms from raised position, and elevates ribs

what's the primary action and assistant actions of serratus anterior?

laterally flexes head and neck

what's the primary action of levator scapulae?

abduction of arm

what's the primary action of supraspinatus?

crest of greater tubercle of humerus

whats the insertion of pectoralis major?


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