Muscles Comprehensive N A

Trapezius

NERVE: Accessory n. (CN XI) | VASCULATURE: Transverse cervical a.

Latissimus dorsi

NERVE: Thoracodorsal n. | VASCULATURE: Thoracodorsal a.

Rhomboid major + Rhomboid minor

NERVE: Dorsal scapular n. | VASCULATURE: Dorsal scapular a.

Levator scapulae

NERVE: Dorsal scapular n. | VASCULATURE: Transverse cervical a.

Splenius capitis + Splenius cervicis

NERVE: Dorsal rami of middle cervical n. | VASCULATURE: Occipital a., deep cervical a.

Semispinalis capitis + Semispinalis cervicis

NERVE: Dorsal rami of cervical spinal n. | VASCULATURE: Occipital a., deep cervical a.

Erector spinae

NERVE: Dorsal rami of respective spinal n. | VASCULATURE: Intercostal and lumbar aa., lateral sacral a.

Multifidus

NERVE: Dorsal rami of spinal n. | VASCULATURE: Occipital a., deep cervical a., intercostal and lumbar aa., lateral sacral a.

Deltoid

NERVE: Axillary n. | VASCULATURE: Thoracoacromial a. (deltoid branch), posterior circumflex humeral a.

Supraspinatus + Infraspinatus

NERVE: Suprascapular n. | VASCULATURE: Suprascapular a.

Teres minor

NERVE: Axillary n. | VASCULATURE: Posterior circumflex humeral a., circumflex scapular a.

Teres major

NERVE: Lower subscapular n. | VASCULATURE: Subscapular a., circumflex scapular a.

Subscapularis

NERVE: Upper & lower subscapular nn. | VASCULATURE: Subscapular a.

Pectoralis major

NERVE: Lateral & medial pectoral nn. | VASCULATURE: Thoracoacromial a. (pectoral branch)

Pectoralis minor

NERVE: Medial pectoral n. | VASCULATURE: Thoracoacromial a. (pectoral branch)

Serratus anterior

NERVE: Long thoracic n. | VASCULATURE: Lateral thoracic a.

Triceps brachii

NERVE: Radial n. | VASCULATURE: Deep brachial a.; posterior circumflex humeral a. (only long head)

Quadrangular space — BOUNDARIES

Teres minor, teres major, humerus, and lateral border of long head of triceps brachii

Quadrangular space — CONTENTS

Axillary n. and posterior circumflex humeral vessels

Triangular space — BOUNDARIES

Teres minor, teres major, and medial border of long head of triceps brachii

Triangular space — LOCATION

Medial to quadrangular space

Triangular space — CONTENTS

Circumflex scapular a. and v.

Posterior internal vertebral venous plexus

Venous plexus located within the vertebral canal

Transverse cervical v.

Transverse cervical vein

Cephalic v.

Cephalic vein

Superior transverse scapular ligament — LOCATION

Found underneath the supraspinatus muscle

Superior transverse scapular ligament — RELATIONSHIP

Suprascapular artery passes above the ligament; suprascapular nerve passes under the ligament

Back and suboccipital region Nerves

Spinal accessory n. (CN XI), C3 and C4 ventral (anterior) rami, Thoracodorsal n., Dorsal scapular n., Greater occipital n. (C2 dorsal/posterior ramus)

Posterior shoulder and arm Nerves

Axillary n., Suprascapular n., Radial n.

Brachial plexus derivatives Nerves

Suprascapular n., Long thoracic n., Lateral pectoral n., Medial pectoral n., Thoracodorsal n. (Middle subscapular n.), Axillary n., Radial n.

Back and suboccipital region

Transverse cervical a. (Superficial branch of transverse cervical a.), Thoracodorsal a., Dorsal scapular a. (Deep branch of transverse cervical a.), Suprascapular a., Occipital a.

Posterior shoulder and arm

Posterior circumflex humeral a., Suprascapular a., Deep artery of arm (deep brachial a., profunda brachii a.)

Pectoral region

Lateral thoracic a., Thoracoacromial a.