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Shoulder Muscles
Anatomical features of the muscles of the shoulder
24
Anatomy
Professional
09/03/2014

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Cards

Term
Describe the two structures in regards to the ligament found in the scapular notch
Definition
The artery runs over the ligament, the nerve goes under
Term
Medial attachment of pectoralis major
Definition
Sternum
medial third of clavicle
Costal cartilage of ribs 2-6
Term
Lateral attachment of pectoralis major
Definition
lateral ridge of inter-tubercular groove
Term
Vascularization of pectoralis major
Definition
Pectoral branches of thoraco-acromial artery (br. Axillary a.)
Term
innervation of pectoralis major
Definition
medial and lateral pectoral nerves
Term
Describe the relationship of the medial and lateral cords of the pectoral nerve to the pectoralis minor muscle
Definition
The medial cord goes through pec minor. The lateral cord is superior to it.
Term
Superior attachment of deltoid
Definition
lateral third of clavicle,
acromion,
scapular spine
Term
Inferior attachment of deltoid muscle
Definition
deltoid tuberosity
Term
Vascularization of the deltoid muscle
Definition
Deltoid branches of thoracoacromial artery,
post humeral circumflex (branch of axillary artery)
Term
innervation of the deltoid muscle
Definition
axillary nerve
Term
Function of the deltoid muscle
Definition
aBduction of the arm.
Term
List the muscles of the shoulder from superficial to deep
Definition
Superficial muscles:
Pectoralis Major
Deltoid
Trapezius
Latissimus dorsi
subclavius

Deep muscles:
Pectoralis Minor
Coricobrachialis
Biceps brachii
Serratus anterior
Rhomboids (Major and minor)
Levator scapulae
Teres major

Muscles of the rotator cuff:
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Term
What are the borders of the quadrangular space?
Definition
Teres Minor
Teres major,
the shaft of the humerus,
the long head of the triceps.
Term
Medial attachment of Pectoralis Minor
Definition
Surface of ribs 3-5
Term
Lateral attachment of pectoralis minor
Definition
Corocoid process
Term
Vascularization of pectoralis minor
Definition
Pectoral branches of the thoraco-acromial artery
Term
Innervation of pectoralis minor
Definition
medial cord of the pectoral nerve
Term
Anterior attachment of serratus anterior
Definition
lateral surface of ribs 1-8
Term
Posterior attachment of serratus anterior
Definition
Vetebral border of scapula (inner surface)
Term
Vascularization of serratus anterior
Definition
lateral thoracic artery
Term
Innervation of serratus anterior
Definition
The long thoracic nerve of bell.
Term
What are the rotator cuff muscles and where are they in relation to the scapula?
Definition
Posterior of scapula:
Supraspinatus
Infraspinatus
Teres minor

Anterior of scapula:
Subscapularis
Term
Vascularization of the rotator cuff
Definition
Subscapular artery
Term
Innervation of the rotator cuff
Definition
Subscapular Nerve
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