Proximal UL Muscles ANA2 (1) PDF

Proximal Upper Limb Muscles & ANA Lab 2 Dr. Emily S. Ho © 2024 Emily S. Ho Knowing is not enough, we must apply. Willing is not enough, we must do. ~Bruce Lee Overview ▢ Shoulder Girdle and Elbow Joints ▢ Axioappendicular, shoulder...

Proximal Upper Limb Muscles & ANA Lab 2 Dr. Emily S. Ho © 2024 Emily S. Ho Knowing is not enough, we must apply. Willing is not enough, we must do. ~Bruce Lee Overview ▢ Shoulder Girdle and Elbow Joints ▢ Axioappendicular, shoulder, and arm muscles structure ▢ Glenohumeral, elbow, and forearm joint function © 2024 Emily S. Ho ▢ Forearm muscles structure ▢ Wrist, Extrinsic Finger and Thumb function ▢ Lab2 – Forearm cutouts Shoulder Girdle Joints Shoulder Girdle 3 Joints 1. sternoclavicular 2. acromioclavicular 3. glenohumeral 1 Articulation 1. scapulothoracic Source: ECA7  Photo and Reference: A. Agur OCT1152Y 2020 Sternoclavicular and Acromioclavicular Joints 1. Coracoclavicular ligament 2. Coracoacromial ligament Acromioclavicular joint (plane, multiaxial) A 2 1 Anterior view B Sternoclavicular joint (saddle, multiaxial)  Glenohumeral Joint 7 Ball and socket, multiaxial 5 6 Subacromial bursa 4 2 1 1. Glenoid fossa Head of Glenoid 3 fossa 2. Glenoid labrum humerus 2 3. Tendon of long head 3 biceps 4. Coracoid process 5. Acromion 7 6. Coracoacromial ligament Dark purple = joint cavity 7. Joint capsule coronal view sagittal view Photo and Reference: A. Agur OCT1152Y 2020  Photo and Reference: A. Agur OCT1152Y 2020 Scapulothoracic Articulation Posterior view Superior view Posterior view  Scapulohumeral Rhythm Photo ECA7 Elbow Joints  Photo and Reference: A. Agur OCT1152Y 2020 Elbow Joint 2. Radiohumeral joint uniaxial, pivot 3 Joints 3. Proximal radioulnar joint 1. humeroulnar uniaxial, pivot 2 2. humeroradial 1 3. proximal radioulnar 3 1. Humeroulnar joint hinge, uniaxial Medial view Anterior view  Photo and Reference: A. Agur OCT1152Y 2020 Elbow Joint Lateral view Medial view Carrying Angle Valgus Va gus Photo ECA7  Structure: Axioappendicular Muscles  Photo ECA7 Axioappendicular Muscles - Anterior ▢ pectoralis major ▢ Clavicular Head ▢ Sternal Head ▢ pectoralis minor ▢ serratus anterior  Photo ECA7 Axioappendicular Muscles - Posterior ▢ Trapezius ▢ Upper (Descending) ▢ Middle ▢ Lower (Ascending) ▢ Rhomboid ▢Major ▢Minor ▢ Latissimus dorsi  Photo and Reference: A. Agur OCT1152Y 2020 Anterior and Posterior Axillary Fold  Structure: Shoulder Muscles  Photo ECA7 Deltoid Muscle ▢ Deltoid ▢ Anterior ▢ Middle ▢ Posterior  Photo ECA7 Rotator Cuff Muscles ▢ Supraspinatus ▢ Infraspinatus ▢ Teres Minor ▢ Subscapularis  Structure: Arm Muscles  Photo ECA7 Arm Muscles ▢ Biceps brachii ▢Short head ▢Long head ▢ Coracobrachialis ▢ Brachialis  Photo ECA7 Arm Muscles ▢ Triceps brachii ▢ Lateral ▢ Long ▢ Medial  Function: Glenohumeral Muscles  Photo ECA7 Glenohumeral Flexion PM (C) D (A) C www.clinicalanatomy.ca  Photo: A. Agur OCT1152Y 2022 Glenohumeral Extension D (P) T L www.clinicalanatomy.ca  Photo ECA7 Glenohumeral Abduction Middle deltoid Supraspinatus: first 15 degrees 15 degrees M  Photo ECA7 Glenohumeral Adduction  Photo ECA7 Glenohumeral Internal and External Rotation  Function: Scapulothoracic Muscles  Photo ECA7 Scapulothoracic Elevation and Depression Illustration modified  Photo ECA7 Protraction and Retraction  Upward and Downward Rotation Glenohumeral Glenohumeral elevation adduction and extension  Function: Elbow Muscles  Photo ECA7 Elbow Flexion biceps brachii: supination brachialis: any forearm position brachioradialis: neutral forearm brachioradialis Photo and Reference: A. Agur OCT1152Y 2022  Photo ECA7 Elbow Extension triceps brachii  Structure: Forearm Muscles  Photo ECA7 Forearm Compartments  Structure: Anterior Forearm Muscles (Flexors)  Photo ECA7 Anterior: Superficial Lateral to Medial Pronator teres Flexi carpi radialis Palmaris longus Flexi carpi ulnaris  Photo ECA7 Anterior: Intermediate Flexor digitorum superficialis  Photo ECA7 Anterior: Deep Lateral to Medial flexor digitorum profundus flexor pollicis longus pronator quadratus  Structure: Posterior Forearm Muscles (Extensors)  Photo ECA7 Posterior: Superficial (Radial Side) brachioradialis extensor carpi radialis longus abductor pollicis longus extensor carpi radialis brevis extensor pollicis brevis  Photo ECA7 Posterior: Superficial (Mid and Ulnar Side) extensor digitorum extensor digiti minimi extensor carpi ulnaris  Photo ECA7 Posterior: Deep supinator abductor pollicis longus extensor pollicis brevis extensor pollicis longus extensor indicis  Photo ECA7 Posterior: 6 Synovial Sheaths Photo and Reference: A. Agur OCT1152Y 2022  Function: Forearm Muscles  Photo ECA7 Pronation Palms down pronator teres pronator quadratus  Photo ECA7 Supination biceps brachii supinator  Photo ECA7 Wrist Flexion and Extension flexor carpi radialis extensor carpi radialis longus flexor carpi ulnaris extensor carpi radialis brevis Radial Deviation (abduction) extensor carpi ulnaris Ulnar Deviation (adduction)  Photo ECA7 flexor digitorum superficialis Extrinsic Finger Flexion flexor digitorum profundus Flexes all joints that the tendon crosses PRIMARY: PIPJ flexion PRIMARY: DIPJ flexion Photo: Hoppenfeld (1976) Photo: Hoppenfeld (1976)  Photo ECA7 Extrinsic Thumb Flexion, Extension, and Abduction extensor pollicis brevis extensor pollicis longus Photo: https://www.youtube.com/wa tch?v=e2-edwERjg0 abductor pollicis longus MP Extension CMC Palmar Abduction CMC Extension flexor pollicis longus Extrinsic Finger Extensors extensor digitorum extensor indicis extensor digiti minimi Recap: Upper Limb Proximal Muscles Concept Structure and Function Shoulder Girdle and acromioclavicular, sternoclavicular, glenohumeral, scapulothoracic articulation, Elbow Joints humeroradial, humeroulnar, proximal radioulnar joints Axioappendicular pectoralis major, pectoralis minor, serratus anterior, latissimus dorsi, trapezius, rhomboids, (levator scapulae) Shoulder supraspinatus, infraspinatus, teres minor, subscapularis, and deltoid Arm biceps brachii, brachialis, coracobrachialis, triceps brachii Anterior Forearm flexor pollicis longus, flexor digitorum profundus, flexor digitorum superficialis, pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris Posterior Forearm abductor pollicis longus, extensor pollicis brevis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor pollicis longus, extensor indicis, extensor digitorum, extensor digiti minimi, extensor capri ulnaris Questions? Reflections? Feedback? © 2024 Emily S. Ho  Assignment Due Dates ▢Sept 23 1 pm ANA Lab 2: Forearm Cut-outs 2 file uploads – group attendance, forearms ▢Sept 30 9 am Formative Anatomy Quiz 3 ▢ Sept 30 12pm Discussion Forum, MSK Study Aid – Respond to 1 post and provide a reflection on how you will use this study aid ANA Lab 2 Dr. Emily S. Ho © 2024 Emily S. Ho Active and Experiential Learning Study Group Assignment 1% Three (3) Activities 1) Anterior Forearm Muscle Cutouts - PHOTO SUBMISSION 2) Posterior Forearm Muscle Cutouts – PHOTO SUBMISSION 3) Forearm Surface Anatomy (Optional) Activity 1 & 2: Forearm Cutouts ☐Step1: Cut-out Muscles ☐Step 2: Layer them on 2D Radius and Ulna ☐Step 3: Layer them on partner/self ☐Step 4: Superficial Layer = surface anatomy ▢ Step 5: Upload 2 picture files (group cutouts) Name file: UTSG10.Lab2.1 and UTSG10.Lab2.2 Questions? Reflections? Feedback? © 2024 Emily S. Ho