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Anatomy-EXB106L Q#1
Quiz #1 info
| Question | Answer |
|---|---|
| Origin Of: Pectoralis Major Muscle | Clavicle,, sternum, ribs 1-6 |
| Origin Of: Latissimus Dorsi Muscle | Spinous Process of thoracic, lumbar an sacral verebrae, iliac crest |
| Origin Of: Teres Major Muscle | Inferior Angle of Scapula |
| Origin Of: Deltoid Muscle | lateral 1/2 of clavicle, acromion, scapular spine |
| Origin Of: Coracobrachialis Muscle | Coracoid process |
| Origin Of: Supraspinatus Muscle | Supraspinous fossa of scapula |
| Origin Of: Infraspinatus Muscle | Infraspinous fossa of scapula |
| Origin Of: Teres Minor Muscle | Lateral Border of scapula |
| Origin Of: Subscapularis Muscle | Subscapular fossa of scapula |
| What four muscles contribute to the rotater cuff? (in order) | 1. Supraspinatuus Muscle, 2. Infraspinatus Muscle, 3. Teres Minor Muscle, 4. Subscapularis Muscle. |
| Origin Of: Trapezius Muscle | Occipital bone, spines of C7- T12 |
| Origin Of: Rhomboid Minor Muscle | Spinous Process of C7 and T1 |
| Origin Of: Rhomboid Major Muscle | Spinous Proccesses of T2-T5 |
| Origin Of: Levator Scapulae Muscle | Transverse Processes of C1-C4 |
| Origin Of: Pectoralis Minor Muscle | Ribs 3-5 |
| Origin Of: Serratus Anterior Muscle | Lateral Surface of Ribs 1-8 |
| Insertion Of: Pectoralis Major Muscle | Intertubercular Groove of Humerus |
| Insertion Of: Latissimus Dorsi Muscle | Intertubercular Groove of Humerus |
| Insertion Of: Teres Major Muscle | Inferior angle of Scapula |
| Insertion Of: Deltoid Muscle | Deltoid Tuberosity of Humerus |
| Insertion Of: Coracobrachialis Muscle | Medial Side of Humeral Shaft |
| Insertion Of: Supraspinatus Muscle | Greater Tubercle of Humerus |
| Insertion Of: Infraspinatus Muscle | Greater Tubercule of Hummerus |
| Insertion Of: Teres Minor Muscle | Greater Tubercule of Hummerus |
| Insertion Of: Subscapularis Muscle | Lesser Tubercle of Hummerus |
| Insertion Of: Trapezius Muscle | Clavicle, scapular spine, acromion |
| Insertion Of: Rhomboid Minor Muscle | Medial Border of the scapula at the base of the scapular spine |
| Insertion Of: Rhomboid Major Muscle | Medial Border Of the scapula below the scapular spine |
| Insertion Of: Levator Scapulae Muscle | Medial Border of the scapula above the scapular spine |
| Insertion Of: Pectoralis Minor Muscle | Coracoid process of scapula |
| Insertion Of: Serratus Anterior Muscle | Anterior surface of medial border of scapula |
| Main Actions of: Pectoralis Major Muscle (on arm) | ADduction, flexion, medial rotation |
| Main Actions of: Latissimus Dorsi Muscle (on arm) | ADduction, extension , medial rotation |
| Main Actions of: Teres Major Muscle (on arm) | ADduction, Medial Rotation |
| Main Actions of: Deltoid Muscle (on arm) | ABduction (15-90 degrees, can help with all actions on arm EXCEPT aDduction |
| Main Actions of: Coraccobrachialis Muscle (on Arm) | aDduction, flexion |
| Main Actions of: Supraspinatus Muscle (on arm) | aBduction (0-15 degrees) |
| Main Actions of: Infraspinatus Muscle (on arm) | aDuction, lateral rotation |
| Main Actions of: Teres Minor Muscle (on arm) | aDduction, lateral rotation |
| Main Actions of: Subscapularis Muscle (on arm) | aDduction, Medial Rotation |
| Main Actions of: Trapezius Muscle (on scapula) | retraction, medial and lateral rotation, elevation, depression, extension of the neck |
| Main Actions of: Rhomboid Minor Muscle (on scapula) | retraction, medial rotation |
| Main Actions of: Rhomboid Major Muscle (on scapula) | retraction, medial rotation |
| Main Actions of: Levator Scapulae Muscle (on scapula) | elevation, medial rotation |
| Main Actions of: Pectoralis Minor Muscle (on scapula) | protraction, scapular stabilization |
| Main Actions of: Serratus Anterior Muscle (on scapula) | Lateral rotation, protraction, holds scapula against ribcage |
| Innervation of: Pectoralis Major Muscle | Medial and lateral Pectoral Nerve |
| Innervation of: Latissimus Dorsi Muscle | Thoracodorsal Nerve (Middle subscapular Nerve) |
| Innervation of: Teres Major Muscle | Lower subscapular Nerve |
| Innervation of: Deltoid Muscle | Axillary Nerve |
| Innervation of: Coracobrachialis Muscle | Musculocutaneous Nerve |
| Innervation of: Supraspinatus Muscle | Suprascapular Nerve |
| Innervation of: Infraspinatus Muscle | Suprascapular Nerve |
| Innervation of: Teres Minor Muscle | Axillary Nerve |
| Innervation of: Subscapularis Muscle | Upper and Lower Subscapular |
| Innervation of: Trapezius Muscle | Cranial Nerve XI |
| Innervation of: Rhomboid Minor Muscle | Dorsal Scapular Nerve |
| Innervation of: Rhomboid Major Muscle | Dorsal Scapular Nerve |
| Innervation of: Levator Scapulae Muscle | Dorsal Scapular Nerve |
| Innervation of: Pectoralis Minor Muscle | Medial Pectoral Nerve |
| Innervation of: Serratus Anterior | Long Thoracic Nerve |
| The Dorsal Scapular Nerve Innervates: | Teres Minor M., Teres Major M., Levator Scapulae M. |
| The MEDIAL Pectoral Nerve innervates: | Pectoralis Minor M., pectoralis Major M. |
| The LATERAL pectoral Nerve innervates: | Pectoralis Major M. ONLY |
| The long thoracic Nerve innervates: | Serratus Anterior M. |
| The thoraccodorsal Nerve innervates: | Latissimus Dorsi M. |
| The suprascapular Nerve innervates: | Supraspinatus M., Infraspinatus M. |
| The Axillary Nerve innervates: | Deltoid M., Teres Minor M. |
| The Musculocutaneous Nerve innervates: | Coracobrachialis M. |
| The Lower Subscapular Nerve innervates: | Teres major M., Subscapularis M. |
| The Upper Subscapularis Nerve innervates: | Subscapularis M. |
| The Cranial Nerve XI innervates: | Trapezius |
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