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35 Cards in this Set

  • Front
  • Back
What is the Scapula?
AKA- The Shoulder Blade
The Bone that connects the Humerus (arm bone) to the Clavicle (collar bone).
Rough bone that is sort of triangular in shape.
Name components of the Scapula
Spine, Acromion, Glenoid cavity, Coracoid process, Inferior/Superior/Lateral Angles which are attached to the body wall by a heavy musculature.
What is the Clavicle?
AKA-The Collar Bone
It's a long bone that makes up part of the shoulder girdle (pectoral girdle). The only long horizontal bone in the human body.
What does the Clavicle connect with?
It connects the arm (upper limb) to the body (trunk), located directly above the first rib. Medially, it articulates with the manubrium of the sternum (breast-bone) at the sternoclavicular joint. At its lateral end it articulates with the acromion of the scapula (shoulder blade) at the acromioclavicular joint. It has a rounded medial end and a flattened lateral end.
What is the Humerus?
AKA-Long Bone of the Arm (Arm Bone)
It runs from the shoulder to the elbow. It fits between the scapula and the ulna.
What is the Trapezius?
It's a large Superficial Muscle on a person's Back. It is innervated by the accessory nerve (CN 11) and the branches of C3 and C4.
What is the Blood Supply for the Trapezius Muscle?
The Superficial Branch of the Transverse Cervical Artery from the Thyrocervical Trunk from Subclavian.
What are the Rhomboid Muscles?
They are rhombus shaped muscles associated with the Scapula and are chiefly responsible for its Retraction. There are 2 Rhomboid Muscles:
1. Rhomboid Major
2. Rhomboid Minor
What is the origin of the Minor Rhomboidei Muscle?
From the lower part of the ligamentum nuchae and spinous processes C7, T1.
What is the origin of the Major Rhomboidei Muscle?
From the spinous processes of T2-5. It's insertion is on the medial border of the scapula.
What is the Accessory Nerve?
It's a nerve that controls specific muscles of the neck.
It is believed to originate in the brain and is considered a cranial nerve.
What is the Transverse Cervical Artery?
It's a branch of the thyrocervical trunk, running at a higher level than the suprascapular artery.
What is the Latissinus Dorsi Muscle?
It is the large, flat, triangular, dorso-lateral muscle on the trunk, posterior to the arm and partly covered by the spinotrapezius on its median dorsal region.
What is the Levator Scapulae Muscle?
It is situated at the back and the side of the neck.
What is the origin of the Levator Scapulae Muscle?
It originates from the transverse processes of the upper 4 cervical vertebrae.
Where does the Levator Scapulae Muscle insert?
It inserts on the superior angle and the upper part of the medial border of the scapula.
What is meant by "Winging of the Scapula"?
The phrase is used to refer to an individual who appears to have wings on their back, because their long thoracic nerve is damaged and the vertebral border of the scapula protrudes dorsally.
What is the origin of the Latissimus Dorsi Muscle?
The spines of the lower 6 thoracic vertebrae, posterior layer of the thoracolumbar fascia by which it is attached o all the lumbar and sacral spinous processes, to the supraspinous ligaments, and to the posterior part of the crest of the ilium, the lower 4 ribs, and a few fibers from the inferior angle of the scapula.
What is the insertion of the Latissimus Dorsi Muscle?
On its way to insertion it twists sharply around the teres major and is attached to the floor (and/or medial lip) of the intertubercular groover.
What is the innervation of the Latissimus Dorsi Muscle?
The Thoracodorsal Nerve, from the posterior cord of the brachial plexus C 6,7,8
What is the Dorsal Scapular Nerve?
It arises from the brachial plexs, usually from the plexus root of C5.
What does innervation refer to?
The nerve supply, usually to a specific part of the body.
Which muscles participate in the Elevation & Depression of the Scapula?
1. Elevation= the Levator Scapulae & Trapezius
2. Depression= the Serratus anterior & Pectoralis Minor
Which muscles participate in the Protraction & Retraction of the Scapula?
1. Protraction= the Serratus Anterior & Pectoralis Minor
2. Retraction= the Trapezius & Rhomboids
Which muscles participate in the Forward (upward)/Lateral Rotation of the Scapula?
The Trapezius & Serratus Anterior are prime movers
Which muscles participate in the Medial/Downward Rotation of the Scapula?
It is affected by Gravity and is brought about through the action of the Rhomboids, Levator Scapulae and Pectoralis Minor.
What is the Pectoralis Major?
It is a thick, fan-shaped muscle situated at the upper front (anterior) of the chest wall. It makes up the bulk of the chest muscles in males and lies below the breasts of females.
Where does the Pectoralis Major originate?
Approximately medial 2/3 of the Clavicle, Sternum, Upper 6 Costal Cartilages and by a small slip from the Aponeurosis of the External Abdominal Oblique.
Where does the Pectoralis Major insert?
At the Crest of the Greater Tubercle or Lateral Lip of the Intertubercular Groove.
What is the Pectoralis Minor?
It is a thin, triangular muscle situated at the upper part of the chest, beneath the Pectoralis Major.
Where does the Pectoralis Minor originate?
From the 3rd, 4th, and 5th ribs
Where does the Pectoralis Minor insert?
From the Coracoid Process of the Scapula
What is the Serratus Anterior Muscle?
It's a muscle that originates on the surface of the upper eight ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula.
What is the Serratus Posterior Superior Muscle?
It's a thin, quadrilateral muscle, situated at the upper and back part of the thorax.
What is the Serratus Posterior Inferior Muscle?
It's a muscle that lies at the junction of the thoracic and lumbar regions. It arises from the vertebrae T11 through L3 and runs superolaterally to attach to the lower border of the 9th through 12th ribs.
It is situated at the junction of the thoracic and lumbar regions: it is of an irregularly quadrilateral form, broader than the serratus posterior superior muscle, and separated from it by a wide interval.