Extrinisic Muscles of The Back
Superficial Layer of Extrinsic Muscles of the Back
What are Trappezius, Latissimus Dorsi, Rhomboid Major, Rhomboid Minor, Levator Scapulae?
Muscles that belong to superficial posterior axio-appendicular muscle group and deep posterior axio-appendicular muscle group.
What are trapezius and latissimus dorsi?
What are levator scapulae and rhomboids?
What is the skin of your back and intrinsic back muscle
Bones of the back
What are the skull, vertebrae, scapula, clavicle, pelvic bone, humerus, and ribs
Intermediate Layer of Extrinsic Muscles of the Back
What are Serratus Posterior Inferior and Serratus Posterior Superior?
Nerves and arteries of serratus posterior inferior and superior
What are VPR and intercostal nerves?
What are branches of intercostals?
VPR nerve branching senses what
What is skin and muscular of the rest of the body (including extrinsic back muscles)?
Qualities of superficial fascia
Nerve and Artery that supply Rhomboid Major, Rhomboid Minor, and Levator Scapulae
What are the dorsal scapular nerve and artery
*dorsal scapular (brachial plexus) nerve in rhomboids
*dorsal scapular and/or cervical (C3 and C4) in levator scapulae
Actions of the rhomboids
Type of nature of spinal cord
Segmental
Retinaculum and bursa are examples of
What is deep fascia?
All extrinsic back muscles are supplied by the VPR except
What is trapezius? (supplied by CNXI)
Actions of the trapezius
What is rotates scapula to tilt the glenoid cavity superiorlu, elevates (superior part), retracts (middle part) and depresses (inferior part) scapula?
Roots that are communicated on a spinal nerve
What are Dorsal (sensory) and Ventral (motor)?
Fascia of the back
what is thoracolumbar fascia?
Name the structures that surround the inferior lumbar triangle (triangle of Petit)
What are the latissimus dorsi (medial), iliac crest (inferior), oblique (lateral)?
- thin area, no overlapping, can result in a hernia
Actions of serratus posterior superior and inferior
What is elevates ribs 2-5 and depress ribs 9-12?
Number of pairs of spinal nerve and number of types
What are 31 pairs?
What are 8 Cervical, 12 Thoracic, 5 Lumbar, 5 Sacral, and 1 Coccygeal?
Turns into ligamentum nuchae
What is supraspinous?