Upper Extremity Bones Flashcards

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Questions and Answers

What is the head of the humerus?

The elbow joint

A ligament in the arm

A bone that connects to the shoulder (correct)

The largest bone in the arm

What is the trochlea of the humerus?

The pulley-shaped landmark at the distal medial end that articulates with the ulna.

What is the capitulum?

A round knob-like process on the lateral distal humerus.

What is the olecranon fossa?

A large depression on the posterior and inferior part of the arm where the ulna fits during elbow extension. Signup and view all the answers

What is the radial fossa?

A small depression on the anterior, lateral, and inferior portion of the humerus. Signup and view all the answers

What is the coronoid fossa?

An anterior depression that receives part of the ulna when the forearm is flexed. Signup and view all the answers

Where is the head of the radius located?

At the very top of the radius. Signup and view all the answers

What is the radial tuberosity?

A small prominence on the proximal end of the shaft of the radius for tendon attachment. Signup and view all the answers

What is the styloid process of the radius?

A large distal projection on the lateral side of the radius. Signup and view all the answers

What does the head of the ulna articulate with?

The ulnar notch of the radius. Signup and view all the answers

What is the styloid process of the ulna?

A pointed lateral projection at the distal end of the bone forming the lateral portion of the wrist. Signup and view all the answers

What forms the bony prominence of the elbow?

The olecranon process. Signup and view all the answers

What is the coronoid process of the ulna?

A site of muscle attachment that articulates with the coronoid fossa of the humerus. Signup and view all the answers

What is the trochlear notch?

The deep fossa that receives the trochlea of the humerus during elbow flexion. Signup and view all the answers

What is the radius?

The outer forearm bone. Signup and view all the answers

What is the acromion?

A specific part of the scapula. Signup and view all the answers

What is the coracoid process?

A specific part of the scapula. Signup and view all the answers

What is the glenoid cavity?

A specific part of the scapula. Signup and view all the answers

Study Notes

Humerus

Head of the Humerus: Ball-shaped proximal end connecting to the shoulder.
Trochlea: Pulley-shaped medial condyle at the distal end that articulates with the ulna.
Capitulum: Round knob-like projection on the lateral distal end of the humerus.
Olecranon Fossa: Large posterior depression allowing the ulna to fit during elbow extension.
Radial Fossa: Small anterior-lateral depression accommodating the head of the radius when the elbow is flexed.
Coronoid Fossa: Anterior depression above the trochlea, receiving part of the ulna during forearm flexion.

Radius

Head of Radius: Proximal end of the radius, articulating with the humerus.
Radial Tuberosity: Proximal prominence on the shaft for bicep muscle tendon attachment.
Styloid Process: Large distal projection on the lateral side, noticeable as the wrist bump under the thumb.

Ulna

Head of Ulna: Distal end that articulates with the ulnar notch of the radius.
Styloid Process of Ulna: Pointed lateral projection at the distal end, contributing to wrist bone structure.
Olecranon Process: Forms the bony prominence of the elbow.
Coronoid Process: Site for muscle attachment and articulates with the coronoid fossa of the humerus.
Trochlear Notch: Deep fossa that receives the trochlea of the humerus during elbow flexion.

Scapula

Spine: Key feature of the scapula, prominent ridge on the posterior aspect.
Acromion: Extension of the scapula spine, forming the highest point of the shoulder.
Coracoid Process: Nearest to the shoulder joint, serving as an attachment point for ligaments and tendons.
Supraspinous Fossa: Depression above the spine for muscle attachment.
Infraspinous Fossa: Area below the spine, providing another surface for muscle attachment.
Subscapular Fossa: Anterior surface of the scapula, involved with muscle attachment for the subscapularis.
Glenoid Fossa: Cavity where the head of the humerus articulates, forming the shoulder joint.

Other Upper Extremity Bones

Clavicle: Acts as a strut to connect the arm to the body trunk.
Carpals: Eight wrist bones, including scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, and hamate.
Metacarpals: Five bones forming the middle part of the hand.
Phalanges: Bones in the fingers, categorized into proximal, middle, and distal phalanges.

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Description

Explore the essential bones of the upper extremity with these informative flashcards. Each card features a specific bone and its detailed definition, making it perfect for quick study sessions or deepening your anatomical knowledge. Ideal for students and professionals alike.