Questions and Answers
What is the head of the humerus?
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?
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What is the radial fossa?
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What is the coronoid fossa?
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Where is the head of the radius located?
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What is the radial tuberosity?
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What is the styloid process of the radius?
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What does the head of the ulna articulate with?
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What is the styloid process of the ulna?
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What forms the bony prominence of the elbow?
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What is the coronoid process of the ulna?
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What is the trochlear notch?
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What is the radius?
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What is the acromion?
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What is the coracoid process?
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What is the glenoid cavity?
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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.
