Dorso-Scapular POINA's Flashcards
Deltoid - Proximal Attachment
clavicle
acromion
spine of scapula
Deltoid - Distal Attachment
deltoid tuberosity of humerous
Deltoid - Nerve Innervation
axillary nerve C5, C6
Clavicular Part of Deltoid (Anterior) - Muscle Action
arm flexion
arm internal rotation
Acromial Part of Deltoid (Middle) - Muscle Action
shoulder abduction
Spinal Part of Deltoid (Posterior) - Muscle Action
arm extension
arm external rotation
Deltoid - Purposeful Activity
doing yoga poses with arms overhead (all fibers)
reaching for (anterior fibers) & putting on (posterior fibers) a seatbelt
Pectoralis Major - Proximal Attachment
clavicular head -
clavicle
sternocostal head -
sternum
costal cartilages 1-6
external oblique muscles
Pectoralis Major - Distal Attachment
lateral lip of intertubercular sulcus of humerus
Pectoralis Major - Nerve Innervation
lateral & medial pectoral nerves:
clavicular head C5, C6
sternocostal head C7, C8, T1
Pectoralis Major - Muscle Action
humerus adduction
humerus internal rotation
scapular protraction (draws scapula anterior & inferiorly)
arm horizontal adduction
clavicular head - humerus flexion
sternocostal head - humerus extension from flexed position
Pectoralis Major - Purposeful Activity
reaching across the body into an overhead cabinet
putting on a seatbelt
Pectoralis Minor - Proximal Attachment
ribs 3-5
Pectoralis Minor - Distal Attachment
coracoid process
Pectoralis Minor - Nerve Innervation
medial pectoral nerve C8, T1
lateral pectoral nerve (variable)
Pectoralis Minor - Muscle Action
scapular protraction
with scapula fixed.. assists to elevate the thorax during forced inhalation
Pectoralis Minor - Purposeful Activity
taking a deep breath
walking with crutches
Teres Major - Proximal Attachment
posterior scapula
Teres Major - Distal Attachment
medial lip of intertubercular sulcus of humerus
Teres Major - Nerve Innervation
lower subscapular nerve C5, C6
Teres Major - Muscle Action
shoulder adduction
shoulder internal rotation
Teres Major - Purposeful Activity
toileting
perineal care
What are the rotator cuff muscles?
supraspinatis
infraspinatus
teres minor
subscapularis
Supraspinatis - Proximal Attachment
supraspinous fossa
Supraspinatis - Distal Attachment
greater tubercle of the humerus
Supraspinatis - Nerve Innervation
suprascapular nerve C4, C5, C6
Supraspinatus - Muscle Action
stabilizes head of humerus in glenoid cavity
initiates and assists deltoid in abduction of the arm
Supraspinatus - Purposeful Activity
painting overhead
washing your hair
Infraspinatus - Proximal Attachment
infraspinous fossa
Infraspinatus - Distal Attachment
greater tubercle of the humerus
Infraspinatus - Nerve Innervation
suprascapular nerve C5, C6
Infraspinatus - Purposeful Activity
playing racket sports or table tennis
Infraspinatus - Muscle Action
shoulder external rotation
Teres Minor - Proximal Attachment
lateral border of scapula
Teres Minor - Distal Attachment
greater tubercule of humerus
Teres Minor - Nerve Innervation
axillary nerve C5, C6
Teres Minor - Muscle Action
shoulder external rotation
Teres Minor - Purposeful Activity
washing the back of your head
Subscapularis - Proximal Attachment
subscapularis fossa
Subscapularis - Distal Attachment
lesser tubercle of humerus
Subscapularis - Nerve Innervation
upper & lower subscapular nerves C5, C6, C7
Subscapularis - Muscle Action
shoulder internal rotation
Subscapularis - Purposeful Activity
toileting
donning a bra
throwing a baseball
Serratus Anterior - Proximal Attachment
lateral ribs 1-9
Serratus Anterior - Distal Attachment
medial border of scapula
Serratus Anterior - Nerve Innervation
long thoracic nerve C5, C6, C7
Serratus Anterior - Muscle Action
scapular protraction
scapular upward rotation
holds scapula against thoracic wall
Serratus Anterior - Purposeful Activity
pushing open a door