second order deep back

DEEP

what is the function of the supraspinatus?

abducts arm

what is the innervation of the supraspinatus?

suprascapular nerve

what is the proximal attachment for the supraspinatus?

scapula

what is the distal attachment for the supraspinatus?

humerus

what is the function of the infraspinatus?

• laterally rotates arm

• ADducts arm

what is the innervation of the infraspinatus?

suprascapular nerve

what is the function of the serratus anterior?

• agonist in scapula protraction

• superiorly rotates scapula

• stabilizes scapula

what is innervation of the serratus anterior?

long thoracic nerve

what is the function of the subscapularis?

medially rotates arm

what is the innervation of the subscapularis?

subscapular nerves

what is the function of the teres major?

• extends arm

• ADducts arm

• medially rotates arm

what is the function of the serratus posterior superior?

elevates ribs during forced inhalation

what is the function of the serratus posterior inferior?

depresses ribs during forced exhalation

what is the function of the levator scapulae?

• elevates scapula

• inferiorly rotates scapula

what is the function of the splenius capitis?

unilateral action: turns head to same side

what is the function of the splenius cervices?

bilateral action: extends neck

what is the function of the iliocostalis group?

most lateral

• laterally flexes vertebral column

what is the function of the longissimus group?

longest

• laterally flexes vertebral column

what is the function of the spinalis group?

most medial

what is the function of the multifidus group?

(much to cleave)

• rotates vertebral column toward opposite side

what is the function of the rotatores group?

(to revolve)

• rotates vertebral column toward opposite side

what is the function of the semispinalis group?

laterally flexes vertebral column and head