Anatomy of the Scapula

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What is the primary function of the scapula as a lateral strut?

To extend the elbow joint

To flex the shoulder joint

To resist pressure in the direction of its length (correct)

To rotate the humerus

What is the surface of the scapula that faces the ribs?

Subscapular Fossa (correct)

Subclavian Groove

Infraspinous Fossa

Supraspinous Fossa

What is the attachment point for the Conoid Ligament on the scapula?

Subclavian Groove

Trapezoid Line

Conoid Tubercle (correct)

Spine of Scapula

Which borders of the scapula are adjacent to the vertebrae?

Medial and Lateral Borders Signup and view all the answers

What is the function of the scapula in relation to reaching and climbing?

It increases shoulder joint mobility Signup and view all the answers

What is the shape of the scapula?

Flat, triangular bone Signup and view all the answers

What is the shape of the Costoclavicular Ligament?

Rhomboid Signup and view all the answers

What is the function of the Coracoacromial Ligament?

To provide support to the Head of the Humerus Signup and view all the answers

What type of joint is the Acromioclavicular Joint?

Plane Synovial Signup and view all the answers

What is the Glenoid Labrum?

A fibrous ring surrounding the rim of the glenoid fossa Signup and view all the answers

What is the degree of freedom in the Glenohumeral Joint?

Three degrees Signup and view all the answers

What is the function of the Bursa?

To reduce friction between two structures Signup and view all the answers

Which carpal bone occupies the central position at the wrist?

Capitate Signup and view all the answers

Which structure provides attachment for the Flexor Carpi Ulnaris?

Pisiform Signup and view all the answers

Which carpal bone is most frequently dislocated?

Lunate Signup and view all the answers

What is the function of the Fovea?

Provides attachment for the Fibrocartilaginous Disc Signup and view all the answers

What is the shape of the Pisiform bone?

Pea-shaped Signup and view all the answers

What is the proximal articulation of the Metacarpals?

With the Carpal Bones Signup and view all the answers

What type of joint is the Carpometacarpal Joint (Thumb) classified as?

Synovial Saddle Signup and view all the answers

Which metacarpal bones form the Carpometacarpal Joint (Fingers)?

2nd and 5th Metacarpal Signup and view all the answers

What is the shape of the articular surface of the Head of the Metacarpal?

Biconvex Signup and view all the answers

How many degrees of freedom does the Metacarophalangeal Joint have?

Two Signup and view all the answers

What is the characteristic of the Shaft of the Metacarpal?

Slightly curved with palmar concavity Signup and view all the answers

How many phalanges are present in each finger, excluding the thumb?

Three Signup and view all the answers

What is the attachment site of the medial and collateral ligaments?

Metacarpals to phalanges Signup and view all the answers

What occurs when the joints are flexed in terms of the points of attachment of the medial and collateral ligaments?

A longer distance Signup and view all the answers

What is the orientation of the Flexor Retinaculum?

Horizontal (mediolateral direction) Signup and view all the answers

What is the function of the Flexor Retinaculum?

To form a tunnel for the tendons Signup and view all the answers

What is the attachment site of the Transverse Carpal Ligament?

Pisiform and Hook of Hamate medially and Scaphoid laterally Signup and view all the answers

What is the function of the Extensor Retinaculum?