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Back Muscles
Anatomical features of the muscles of the back
40
Anatomy
Graduate
08/29/2014

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Cards

Term
List the muscles of the back from superficial to deep
Definition
Trapezius
Latissimus Dorsi
Rhomboids (major and minor)
Levator Scapulae
Serratus Posterior Superior
Serratus Posterior Inferior
Splenius Capitus and Cervicis
Erector Spinae
Transversospinals
Term
Proximal attachments of the trapezius muscle
Definition
Occipital Bone
Nuchal Ligament
Supraspinous Ligament
Spinous Processes (cervical and thoracic)
Term
Distal attachments of the trapezius muscle
Definition
Spine of the scapula
Acromion process
Lateral clavicle
Term
Vascularization of the trapezius muscle
Definition
Dorsal scapular Artery (branch of subclavian artery)
Transverse cervical artery (branch of subclavian artery)
Term
Innervation of Trapezius
Definition
Cranial Nerve 11 (Accessory Nerve)
Cervical Plexux (ventral primary rami of spinal nerves from C1-C4)
Term
Functions of the Trapezius
Definition
Elevates the scapula
Adducts the scapula
Depresses the scapula
Rotates the scapula upwards
Term
Proximal attachment points of the latissimus dorsi
Definition
Spinous Processes (thoracic and lumbar)
Sacrum (posterior)
Crest of the ilium (posterior)
Term
Distal attachments of the latissimus dorsi
Definition
Medial lip of the biceptal groove of the humerus
Term
Vascularization of the latissimus dorsi
Definition
Thoracodorsal artery and vein (branches of Axillary artery and vein)
Term
Innervation of the latissimus dorsi
Definition
Thoracodorsal nerve (branch of the Brachial Plexus, ventral primary rami of spinal nerves of C5 to T1)
Term
Function of the latissimus dorsi per lecture
Definition
"Waiters tip"
Term
Function of the latissimus dorsi per internet
Definition
extension of the shoulder
adduction of the shoulder,
transverse extension also known as horizontal abduction of the shoulder
Term
Lateral attachments of the Rhomboids (major and minor)
Definition
Veterbral Border of the scapula
Term
Medial attachment of the rhomboids (major and minor)
Definition
spinous processes of cervical and thoracic vertebrae
Term
Medial attachment point of the levator scapulae
Definition
Transverse process of Cervical vertebrae
Term
Lateral attachment of the levator scapulae
Definition
Veterbral Border of the scapula
Term
Medial attachment of the Serratus Posterior Inferior
Definition
Spinous processes of thoracic and lumbar vertebrae
Term
Lateral attachment of the Serratus Posterior Inferior
Definition
Posterior of ribs
Term
Medial attachment of the Serratus Posterior Superior
Definition
Spinous Process of C7 and thoracic vetebrae
Term
Lateral attachment of the Serratus Posterior Superior
Definition
Posterior of ribs
Term
Vascularization of Rhomboids (major and minor)
Definition
dorsal scapular artery
Term
Vascularization of Levator Scapulae
Definition
dorsal scapular artery
Term
Innervation of Levator Scapulae
Definition
dorsal scapular nerve (branch of brachial plexus)
Term
Innervation of Rhomboids (major and minor)
Definition
dorsal scapular nerve (branch of brachial plexus)
Term
Vascularization of Serratus posterior inferior
Definition
branches of intercostal arteries
Term
Vascularization of Serratus posterior superior
Definition
branches of intercostal arteries
Term
Innervation of Serratus posterior inferior
Definition
branches of intercostal nerves
Term
Vascularization of Serratus posterior superior
Definition
branches of intercostal arteries
Term
Function of romboids
Definition
Elevate scapula
Retract the scapula
Term
Function of serratus muscles
Definition
Accessory muscles for breathing
Term
Innervation of Splenius capitis and cervicis
Definition
Dorsal primary rami of spinal nerves in the area
Term
Innervation of Erector Spinae
Definition
Dorsal primary rami of spinal nerves in the area
Term
Innervation of transversospinalis
Definition
Dorsal primary rami of spinal nerves in the area
Term
Vascularization of transversospinalis
Definition
Branches of intercostal arteries in the region
Term
Vascularization of Erector Spinae
Definition
Branches of intercostal arteries in the region
Term
Which muscles are primarily responsible for extension of the back?
Definition
erector spinaae
transversospinalis
Term
Which muscles are primarily responsible for flexion of the back?
Definition
Rectus abdminal.
Psoas major muscle.
Abdominal obliques
Transverse abdominal
Transversospinalis
Term
Which muscles are primarily responsible for lateral bending of the back?
Definition
Abdominal oblique muscles. ,
Transverse abdominal muscles
Transversospinalis
Term
Which muscles are primarily responsible for rotation of the back?
Definition
Abdominal oblique muscles
Transverse abdominal muscles (contralateral)
Transversospinalis
Term
What important structure lies in the suboccipital triangle?
Definition
Vetebral artery
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