Bones and Landmarks
Muscles
More Muscles OIAN
Actions
Other
100

This flat bone connects the humerus to the clavicle and has a prominent ridge or spine on its posterior surface.

Scapula 

100

This muscle is on the Lateral Side of the upper arm

Deltoid
100

Teres Major OIA

O: Inferior Angle of Scapula

I Leser Tubercle of Humerus

A: Shoulder extension, adduction, medial rotation

100

Type of Joint  and Actions of the Glenhumeral Joint (aka Shoulder joint)

Joint Type: Ball and Socket Joint

Actions :

Shoulder Flexion/ Extension

Shoulder Abduction/Adduction

Shoulder Medial/Lateral Rotation

100

What Nerve is associated with the Deltoid Muscle

Axillary Nerve

200

This shallow depression on the scapula articulates with the head of the humerus.

Glenoid fossa (or cavity)

200

Name the SITS Muscles or Rotary Cuff Muscles

Supraspinatus

Infraspinatus

Teres Minor


Subscapularis

200

Subscapularis OIA

O: Supscapular Fossa of anterior scapula
I: Lesser tubercle of humerus

A: Shoulder Medial Rotation, stabilizes humerus


200

Actions of the Scapula

Depression/Elevation

Protractrion/ Retraction

200

This end of the clavicle articulates with the acromion of the scapula.

Acromion End

300

Describe what makes up the Pectoral Girdle

and where those articulate with each other

Scapula + Clavicle

The arcomion end of the clavicle articulates with the Acromion Process of the Scapula

300

This Muscle is inferior to the Rhomboid Minor

and its action is to retract the scapula 

Rhomboid Major

300

Posterior Head/ Thorax
Levator Scapulae OIA

O: Transverse Process of (C1-C4)

I: Medial Border of Scapula
A: Scapular elevation

(Remember Levator sounds like elevator to lift scapula)

300

Example Question

what muscle action  of the scapula is required to throw a punch?

Protraction 

(think projectile forward like you throw your arm forward in a punch)

300

Which two muscles retract the scapula?

Rhomboid Major

Rhomboid Minor

400

Identify the landmark between the Greater and Less tubercle of the humerus

Intertubercle Groove

400

Muscle originates on ribs 1-8  it inserts on the medial border of scapula and its main action is scapular Protraction

Serratus Anterior

(remember serraded or jagged look from attatchment to all the ribs)

400

Latissimus Dorsi OIAN

O: Spinous Processes of T7-L5 and Iliac Crest

I: Intertubercular Groove of the Humerus 

Action: Shoulder Extension Adduction and Medial Rotation

(Strong Gladiator big Back muscle Idk Sounds like gladiator name) 

400
Actions of the Pectoralis Major on the Anterior side of the thorax

Shoulder adduction and medial rotation

400

Where does the Latissimus Dorsi Insert?

The Intertubercular Groove of the Humurus 

500

Identify this land mark on the humerous this raised area serves as the attachment site for the deltoid muscle.

Deltoid Tuberosity

500

Anterior Thorax

OIAN of the Coracobrachialis

O: coracoid process of scapula

I:  Shaft of Humerus

A: Shoulder Flexion and Adduction

N: Musculocutaneous Nerve

500

OIAN of Trapezius

O : Occipital Bone, Spinous Processes of Thoracic Vertebrae (C7-T12)

I:Acromion, Spine of Scapula, Clavicle

A: Scapular Retraction, Elevation, Stability

500

What SITS muscle does Lateral Rotation of the Shoulder and Stabilizes the Humerus

Infraspinatus

500

The Acromion Process of the scapula is on which al side of the scapula 


lateral and posterior side