Back and vertebral column (gross) 11-16-16 Flashcards
The superficial muscles of the back are (5)
- trapezius
- latissimus dorsi
- rhomboid major
- rhomboid minor
- levator scapulae
The definition of superficial back muscles is that they anchor… to…
anchor UL to axial skeleton
Intermediate back muscles function are to
assist respiration
The functions of the deep back muscles are to (2)
- maintain posture
- act on vertebral column (raise and lower spine)
The action of the trapezius muscle is to…
elevate, depress and retract scapula
The trapezius muscle is innervated by… and its blood supply is from…
- accessory nerve (CNXI) and C3, C4
- transverse cervical vessels
The… plexus is the neurovascular supply of the trapezius and is composed of
- subtrapezial
- superficial branch of transverse cervical artery and the accessory nerve (CNXI)
The action of the latissimus doris is…
adduct, extend and medially rotate humerus
The innervation and blood supply of the latissimus dorsi is
thoracodorsal nerve and vessels and intercostal vessels
The action of the elevator scapulae is… and is innervated and supplied by…
- elevate scapula
- C3, C4, and dorsal scapula n. and vessels
The rhomboid major and minor actions are to…. and innervated and supplied by
- retract (adduct) and elevate scapula
- dorsal scapular n. and vessels
Triangle of Auscultation is at the … intercostal space and its Superior, lateral and inferior borders are?
Superior- Trapezius
Lateral- Rhomboid major
Inferior- Latissimus dorsi
Lumber triangle borders, lateral, medial and inferior
Lateral- external oblique
Medial- latissimus dorsi
inferior- iliac crest
