Upper Extremity Learning Objectives + Structure Information Flashcards

(62 cards)

1
Q

Latissimus Dorsi bony attachments

A

From lower thoracic spinous processes, thoracolumbar fascia, & iliac crest to the floor of the intertubercular sulus of the humerus

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2
Q

Latissimus Dorsi actions

A

adduction, extension, medial rotation of humerus

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3
Q

Latissimus Dorsi innervation

A

thoracodorsal nerve
spinal segment: C6-C8

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4
Q

Levator Scapulae bony attachments

A

From transverse processes of C1-C4 to the superior angle & superomedial border of the scapula

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5
Q

Levator Scapulae actions

A

elevation & downward rotation of the scapula

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6
Q

Levator Scapulae innervation

A

dorsal scapular nerve (sensory branches of C3-C4)
spinal segment: C4-C5

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7
Q

Pectoralis Major bony attachments

A

from clavicle, costal cartilages, sternum, & aponeurosis of the external oblique to the lateral lip of the intertubercular sulcus of the humerus

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8
Q

Pectoralis Major actions

A

adduction, flexion, & medial rotation (sternocostal portion assists with extension of the flexed arm)

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9
Q

Pectoralis Major innervation

A

medial and lateral pectoral nerves
spinal segment: clavicular head C5-C7, sternocostal head C8-T1

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10
Q

Pectoralis Minor bony attachments

A

from outer surfaces of ribs 3-5 to the coracoid process of scapula

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11
Q

Pectoralis Minor actions

A

anterior tilt of scapula, assists with depression of the shoulder, & forced inspiration

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12
Q

Pectoralis Minor innervation

A

medial and lateral pectoral nerves
Spinal Segment: C5-T1

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13
Q

Rhomboids bony attachments

A

From ligamentum nuchae & spinous processes C7-T1 & T2-T5, to the medial border of the scapula

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14
Q

Rhomboids actions

A

scapular retraction, elevation (upper), downward rotation

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15
Q

Rhomboids innervation

A

dorsal scapular nerve (sensory: direct branches of C3-C4)
Spinal segment: C4-C5

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16
Q

Serratus anterior bony attachments

A

From the outer surfaces & superior borders of upper 8-10 ribs, to the costal surface of the medial border of the scapula

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17
Q

Serratus anterior actions

A

scapular protraction & upward rotation

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18
Q

Serratus anterior innervation

A

long thoracic nerve
spinal segment: C5-C7

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19
Q

Subclavius bony attachments

A

From 1st rib & cartilage to the undersurface of the clavicle

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20
Q

Subclavius actions

A

depresses and stabilizes the clavicle

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21
Q

Subclavius innervation

A

subclavian nerve
spinal segment: C5-C6

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22
Q

Trapezius bony attachments

A

From the superior nuchal line, external occipital protuberance, ligamentum nuchae, & cervical and thoracic spinous processes to the clavicle, acromion, & scapular spine

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23
Q

Trapezius actions

A

scapular elevation (upper), depression (lower), retraction (middle), upward rotation (upper & lower)

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24
Q

Trapezius innervation

A

accessory nerve (Cn XI; motor), C3-C4 sensory
spinal segment: accessory nerve (CN XI), C3-C4 sensory

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25
Intermediate Extrinsic Back Muscles (list)
serratus posterior superior serratus posterior inferior
26
Intrinsic Back Muscles (list)
Intrinsic Superficial (splenius muscles) - splenius capitis - splenius cervicis Intrinsic Intermediate (erector spinae muscles) - spinalis - longissimus - iliocostalis Intrinsic Deep (transversospinales muscles) - semispinalis (semispinalis capitis) - multifidus & rotatores
27
Extrinsic Muscles (general)
Superficial (axioappendicular) - provides limb movement Intermediate (serratus posteriors) - provide respiration/proprioception All muscles are innervated by the anterior rami of the spinal nerve, except the trapezius
28
Intrinsic Muscles (general)
Superficial (splenius) Intermediate (erector spinae) Deep (transversospinales) - All provide vertebral column movement and stabilization - All muscles are innervated by the posterior rami of spinal nerve
29
Trapezius artery
transverse cervical artery
30
Deltoid bony attachments
From the clavicle, acromion, & spine of the scapula to the deltoid tuberosity of the humerus
31
Deltoid actions
flexion & medial rotation (anterior), abduction (primarily middle), extension & lateral rotation, horizontal extension (posterior) of humerus
32
Deltoid innervation
axillary nerve spinal segment: (C5-C6; anterior, middle, & posterior portions)
33
Supraspinatus bony attachments
From the medial 2/3 of the supraspinous fossa to the superior facet of the greater tubercle of the humerus, & to shoulder joint capsule
34
Supraspinatus actions
initiates humeral abduction & laterally rotates humerus; stabilizes glenohumeral joint (reinforces superior aspect of joint capsule)
35
Supraspinatus innervation
suprascapular nerve spinal segment: (C4-C6)
36
Infraspinatus bony attachments
From the medial 2/3 of the infraspinous fossa to the middle facet of the greater tubercle of the humerus & to shoulder joint capsule
37
Infraspinatus actions
lateral rotation of the humerus & stabilizes glenohumeral joint
38
Infraspinatus innervation
suprascapular nerve spinal segment: (C5-C6)
39
Teres Minor bony attachments
From the upper 2/3 of the dorsal surface of the lateral border of the scapula to the inferior facet of the greater tubercle of the humerus & to shoulder joint capsule
40
Teres Minor actions
lateral rotation of humerus; stabilizes glenohumeral joint
41
Teres Minor innervation
axillary nerve spinal segment: (C5-C6)
42
Subscapularis bony attachments
From the subscapular fossa to the lesser tubercle of the humerus
43
Subscapularis actions
medial rotation of the humerus & stabilizes of the glenohumeral joint
44
Subscapularis innervation
upper & lower subscapular nerves spinal segment: (C5-C6)
45
Teres Major bony attachments
from the dorsal surface of inferior angle of scapula & lower 1/3 of the lateral border of the scapula to the medial lip of the intertubercular sulcus of the humerus
46
Teres Major actions
humeral adduction, medial rotation, & extension
47
Teres Major innervation
lower subscapular nerve spinal segment: (C5-C6)
48
Quadrangular Space (location and neurovascular contents)
Superior border= teres minor Inferior border= teres major Medial border= long head of triceps brachii Lateral border= humerus Contains axillary nerve and posterior circumflex humeral artery
49
Scapular notch (neurovascular tracts)
Superior transverse scapular ligament creates bridge superior to notch Suprascapular nerve inferior (under) to the ligament. Suprascapular artery superior (over) to the ligament. Army goes over bridge, navy goes under bridge.
50
Medial border of scapula (neurovascular tracts)
Dorsal scapular nerve and artery descend parallel to each other along the medial border of the scapula on the deep aspect of the rhomboids.
51
Sternoclavicular joint (synovial classification)
On pectoral (shoulder) girdle synovial classification: sellar or saddle
52
Acromioclavicular joint (synovial classification)
On pectoral (shoulder) girdle synovial classification: plane or gliding
53
Glenohumeral joint (synovial classification)
On pectoral (shoulder) girdle synovial classification: ball & socket
54
Scapulothoracic "joint"
On pectoral (shoulder) girdle Function: pseudo joint necessary for full glenohumeral function
55
Coracoclavicular ligament (attachments + function)
Trapezoid (more lateral) - attachment: coracoid process to trapezoid line of clavicle Conoid (more medial) - attachment: coracoid process to conic tubercle of clavicle Function: stabilize AC joint limiting medial displacement, protraction, and elevation
56
Acromioclavicular ligament (attachments + function)
attachments: superior aspect of acromial end of the clavicle to adjacent acromion functions: stabilize AC joint
57
Coracoacromial ligament (attachments + function)
attachments: lateral border of coracoid process to acromion function: prevents the superior displacement of the humeral head by forming the coracoacromial arch
58
Coracohumeral ligament (attachments + function)
attachments: from base of coracoid process to anterior aspect of greater tubercle of humerus functions: reinforces superoanterior aspects of joint capsule
59
Costoclavicular ligament (attachments + function)
attachments: superior aspect of cartilage of first rib to undersurface of clavicle function: stabilizes sternoclavicular joint, limits elevation of clavicle
60
Superior transverse scapular ligament (attachments + function)
attachments: medial edge of scapular notch to coracoid process function: closes off scapular notch
61
Glenoid capsule (attachments)
attachments: circumference of glenoid cavity to anatomical neck of humerus
62
Glenohumeral ligaments (superior, middle, inferior) (attachments + function)
attachments: from upper part of medial margin of glenoid cavity to lesser tubercle & anatomical neck of humerus function: stabilize glenohumeral articulation