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26 Cards in this Set

  • Front
  • Back

area of the skin innervated by a single spinal nerve or spinal cord segment

Dermatome

subcutaneous tissue
found b/n the skin and deep fascia
covers most of the body
storage area for most body fat

Superficial fascia

strong, dense connective tissue
located deep to the superficial fascia and contains no fat

Deep fascia

invests (covers) deeper structures such as muscle

Investing layer of the deep fascia
divide muscles into groups
Intermuscular septa

thickening of the deep fascia across tendons of muscles

Retinaculum

Trapezius: origin

Occipital bone
Ligamentum nuchae
Spinous process of C7 - T12


superior nuchal line

Trapezius: insertion
Clavicle (lateral 1/3)
Acromion and spine of scapula
Trapezius: nerve supply
spinal accessory nerve/cranial nerve XI - motor innervation
C3, C4 (ventral primary rami) - pain and proprioception

Trapezius: blood supply

superficial branch of the transverse cervical artery (deep surface)
Trapezius: action
Holds upper limb to trunk
Adducts scapula (middle fibers)
Raises scapula (upper fibers)
Depresses scapula (lower fibers)
Rotates scapula so that the inferior angle is moved laterally or abduction of upper limb above horizontal position

Latissimus dorsi: origin

Spinous process of lower six thoracic vertebrae
Thoracolumbar fascia
Iliac crest and lower 3 or 4 ribs
Latissimus dorsi: insertion
Humerus (intertubercular groove)
Latissimus dorsi: nerve supply
Thoracodorsal nerve (C6, C7, C8 level of spinal cord) from the brachial plexus
Latissimus dorsi: blood supply
Thoracodorsal artery
Latissimus dorsi: action
pulls arm posteriorly (extends arm) and rotates medially
Adducts the arm - extends and medially rotates the humersus at the shoulder joint
a small triangular gap between muscles near the inferior angle of the scapula.
bounded by?
Triangle of auscultation
bounded by: latissimus dorsi, trapezius, and medial border of the scapula
Levator scapulae: origin
Transverse processes of first three or four cervical vertebrae
Levator scapulae: insertion
superior angle of scapula and along its upper medial border
Levator scapulae: blood supply
dorsal scapular artery (branch of axillary a) OR
deep branch of transverse cervical a
Levator scapulae: action
elevates scapula
rotates scapula to move the glenoid cavity and shoulder joint inferiorly
Rhomboid major and minor: origin
spines of lower cervical (C7) and upper thoracic (T1-T5) vertebrae
Rhomboid major and minor: insertion
medial border of scapula
Rhomboid major and minor: blood supply
dorsal scapular artery
Rhomboid major and minor: action
adduct scapula
rotate scapula so the glenoid cavity moves inferiorly

Rhomboid major and minor: nerve

Dorsal scapular nerve (ventral ramus of C5) and some fibers from C4