Humerus & Shoulder RAD 1 Info Flashcards
What forms the shoulder girdle?
Clavicle and scapula
What does the shoulder girdle connect?
The upper limb to the trunk
The humerus is considered part of the ________ but not the ________
- Upper limb
- Shoulder girdle
What bone is considered a long bone?
Clavicle
What is classified as a flat bone?
Scapula
The clavicle has a _____ and _______
- Body
-Two extremities
The clavicle is _______ for strength
Doubly curved
What does the clavicle serve as?
A fulcrum for arm movements
What is part of the clavicle laterally to medially?
- Acromial extremity
- Body
- Sternal extremity
The scapula has _____ surface, ____ borders, and ____ angles
- 2
- 3
- 3
What is seen on the Anterior surface of the scapula?
- Lateral border
- Medial border
- Body
- Subscapular fossa
- Superior angle
- Superior border
- Scapular notch
- Coracoid process
- Acromion
- Neck
- Glenoid cavity
What is seen on the Posterior surface of the scapula?
- Medial border
- Inferior angle
- Lateral border
- Lateral angle
- Neck
- Glenoid cavity
- Acromion
- Coracoid process
- Scapular notch
- Superior border
- Superior angle
- Supraspinous fossa
- Crest of spine
- Infraspinous fossa
What is seen on the lateral surface of the scapula?
- Acromion
- Superior angle
- Coracoid process
- Glenoid surface
- Anterior surface
- Inferior angle
- Lateral border
- Posterior surface
- Spine
Whats another word for the intertubercular groove?
Bicipital groove
What does the intertubercular groove seperate?
The greater tubercle and the lesser tubercle
The lesser tubercule is located on the ______ of the humerus and just below the ______
- Anterior surface
- Anatomic neck
The greater tubercle is located on the ______ of the humerus and just below the ______
- Lateral side
- Anatomic neck
What does the greater tubercle contain that the lesser tubercle doesnt?
Three flattened impressions for muscle insertions
What area of the proximal humerus is a common fracture site?
Surgical neck
What area of the proximal humerus is the surgical neck located?
Just below the lower tubercles
Where is the anatomic neck located on the proximal humerus?
Just below the head
The anatomic neck is _____ & ______
- Narrow
- Constricted
Where is the head of the proximal humerus located?
On the superomedial aspect of the humerus
The head of the humerus is ______, ______, & _______
- Large
- Smooth
- Rounded
What is seen on the anterior aspect of the proximal humerus?
- Greater tubercle
- Intertubercular (bicipital) groove
- Surgical neck
- Body
- Lesser tubercle
- Anatomic neck
- Head
How many articulations are there in the shoulder girdle?
3
Whats another name for the scapulohumeral joint?
Glenohumeral joint
What does the scapulohumeral joint articulate?
The glenoid cavity and the humeral head
What does the Acromioclavicular joint articulate?
The acromion process of the scapula and the acromial extremity of the clavicle
What does the sternoclavicular joint articulate?
The sternal extremity of the clavicle with the manubrium and the 1st rib cartilage
What kind of joint is the scapulohumeral classified as?
A synovial, ball & socket joint
What kind of joint is the Acromioclavicular classified as?
Synovial gliding joint
What kind of joint is the Sternoclavicular classified as?
Synovial double gliding joint
Which joint is the only bony union between the upper limb and trunk?
Sternoclavicular joint
