(Superficial / Intermediate Back) Flashcards
Trapezius
PROX. ATTACHMENT
External occipital protuberance
Ligamentum nuchae
Spinous processes C7-T12
DISTAL ATTACHMENT
Clavicle
Acromion
Spine of scapula
ACTION Elevation (upper fibers) Retraction (ER) (middle fibers) Depression (lower fibers)
INNERVATION
Spinal accessory
n. (motor)
C3, C4 (sensory)
SPINAL OR CRANIAL LEVELS (OF NAMED NERVE)
Cranial nerve XI
C3, C4 ventral rami
PARALLELING ARTERY
Superficial branch of transverse
cervical a.
Latissimus
Dorsi
PROX. ATTACHMENT
Spinous process T6-T12
Thoracolumbar fascia (lowerback)
Illiac crest
DISTAL ATTACHMENT
Intertubercle groove
ACTION
Extension
Adduction
Internal (medial) rotation (Acts on humerus)
INNERVATION
Thoracodorsal n.
SPINAL OR CRANIAL LEVELS (OF NAMED NERVE)
C6-C7-C8
PARALLELING ARTERY
Thoracodorsal a.
Levator Scapulae
PROX. ATTACHMENT
Transverseprocesses C1-C4
(superior attachment)
DISTAL ATTACHMENT
Superior angle of scapula (inferior
attachment)
ACTION
Elevation; lateral bending of neck
INNERVATION
Dorsal scapular n.
SPINAL OR CRANIAL LEVELS (OF NAMED NERVE)
Ventral ramus of C5
PARALLELING ARTERY
Dorsal scapular a. (deep branch of transverse
cervical a.)
Rhomboid Minor
PROX. ATTACHMENT
Spinous Processes C7-T1
DISTAL ATTACHMENT
Medial (vertebral) border
ACTION
Retraction (ER)
INNERVATION
Dorsal scapular n.
SPINAL OR CRANIAL LEVELS (OF NAMED NERVE)
Ventral ramus of C5
PARALLELING ARTERY
Dorsal scapular a.
Rhomboid Major
PROX. ATTACHMENT
Spinous processes T2-T5
DISTAL ATTACHMENT
Medial (vertebral) border
ACTION
Retraction (ER)
INNERVATION
Dorsal scapular n.
SPINAL OR CRANIAL LEVELS (OF NAMED NERVE)
Ventral ramus of C5
PARALLELING ARTERY
Dorsal scapular a.
Serratus Posterior Superior
PROX. ATTACHMENT
Spinous processes C7-T3
DISTAL ATTACHMENT
Ribs 2-4
ACTION
Elevate ribs
INNERVATION
Intercostal n. (ventral rami)
Serratus Posterior Inferior
PROX. ATTACHMENT
Spinous Processes T11-L2
DISTAL ATTACHMENT
Ribs 8-12
ACTION
Depress Ribs
INNERVATION
Intercostal n. (ventral rami)
