Lesson 6 - Arms Flashcards
Hand Bones
8 Carpals – wrist bones
5 Metacarpals
14 Phalanges – same as feet
Metacarpal Phalengeal Joint
Joint where metacarpals and phalanges meet aka “knuckles”
Wrist Joint
Radius + Carpals
Forearm Bones
- Radius - lateral bone (anatomical position) on the same side as the thumb. This forearm bone rotates around the ulna.
- Ulna - medial bone (anatomical position) on the same side as pinky. This forearm bone does not rotate.
Olecranon
Name of elbow joint – bony landmark on the ulna
Supination / Pronation
Anatomical positioning and rotation of forearm (2 positions)
Humerus
Bone of upper arm
Glenohumeral Joint
= Head of Humerus + Scapula
“Shoulder joint”
Elbow Joint
= Radius + Ulna + Humerus
Pectoral Girdle
= 2 clavicle + 2 scapula
Scapular Landmarks
4 Fossa (indentations in the bone)
- Supraspinous – above spine
- Infraspinous – below spine
- Subscapular – front of scapula (anterior view)
- Glenoid - lateral part of scapula; part of glenohumeral joint
Acromioclavicular Joint
= scapula (acromion) + clavicle
Sternoclavicular Joint
= sternum + clavicle
Hand Muscles & Location
Flexors - Anterior
Extensors - Posterior
Thenar Eminence - Thumb Side (muscles of thumb pad)
Hyothenar Eminence - Pinky side
Wrist & Forearm Muscles
Flexors
Extensors
Retinaculum - Supports tendons during movement and forms “carpal tunnel”
Biceps Brachii (actions)
- Flexes Elbow Joint.
- Flexes Shoulder Joint
- Supinates Forearm
Triceps Brachii (actions)
- Extends Elbow Joint
- Extends Shoulder Joint.
Attaches to Olecranon
Shoulder Musculotendinous Cuff - She Always brings Interesting Little Things Like Special Moments
Deep to shoulder joint movers. All actions affect glenohumeral joint.
Supraspinatus - Abducts
Infraspinatus - Lateral rotation
Teres Minor - Lateral rotation
Subscapularis - Medial roation
S.Ab.I.L.T.L.S.M
Major Movers of Shoulder Joint - Do People Make Love During The Movies?
All actions affect glenohumeral joint.
Deltoid - FLAbME
Flexion, Lateral rotation, Abduction, Medial rotation, Extension
Pectoralis Major - FAdME
Flexion, Adduction, Medial rotation, Extension
Latissimus Dorsi - AdME
Adduction, Medial rotation, Extension
Teres Major - AdME
Adduction, Medial rotation, Extension
