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Questions and Answers
What is the largest bone of the upper extremity?
What is the largest bone of the upper extremity?
- Scapula
- Radius
- Humerus (correct)
- Ulna
The humerus consists of two ridges: the lateral and medial supracondylar ridge.
The humerus consists of two ridges: the lateral and medial supracondylar ridge.
True (A)
Name the three sections of the humerus.
Name the three sections of the humerus.
Upper end, shaft, lower end
The ______ notch is one of the three notches in the scapula.
The ______ notch is one of the three notches in the scapula.
Match the following parts of the scapula with their categories:
Match the following parts of the scapula with their categories:
Which of the following is NOT a surface of the humeral shaft?
Which of the following is NOT a surface of the humeral shaft?
The carrying angle of the elbow typically measures between 160° and 165°.
The carrying angle of the elbow typically measures between 160° and 165°.
Name one fossa present at the lower end of the humerus.
Name one fossa present at the lower end of the humerus.
The _______ is a structure that is important for elbow flexion and is located at the lower end of the humerus.
The _______ is a structure that is important for elbow flexion and is located at the lower end of the humerus.
Match the following anatomical structures with their descriptions:
Match the following anatomical structures with their descriptions:
Flashcards
Humeral Shaft Surfaces
Humeral Shaft Surfaces
The humeral shaft has three surfaces: anterior medial, anterolateral, and posterior.
Coronoid Fossa
Coronoid Fossa
A depression on the humerus that accommodates the coronoid process of the ulna.
Radial Fossa
Radial Fossa
A depression on the humerus that receives the head of the radius.
Olecranon Fossa
Olecranon Fossa
A deep depression on the posterior humerus that accommodates the olecranon process of the ulna during elbow extension.
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Capitulum
Capitulum
A rounded articular surface of the humerus that articulates with the radius.
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Trochlea
Trochlea
A spool-like articular surface of the humerus that articulates with the ulna.
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Medial Epicondyle
Medial Epicondyle
A bony projection located on the medial (inside) aspect of the distal humerus.
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Lateral Epicondyle
Lateral Epicondyle
A bony projection located on the lateral (outside) aspect of the distal humerus.
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Spiral Groove (Humerus)
Spiral Groove (Humerus)
A groove on the posterior surface of the humerus that houses the radial nerve.
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Surgical Neck
Surgical Neck
A constricted area of the humerus just distal to the greater tubercle.
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Elbow Fixed
Elbow Fixed
The elbow position where it does not move.
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Carrying Angle
Carrying Angle
The angle of the forearm in relation to the upper arm.
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Humerus
Humerus
The longest and largest bone in the upper arm.
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Upper End of Humerus
Upper End of Humerus
The top part of the humerus, containing head, neck, and tuberosities.
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Head (Humerus)
Head (Humerus)
Rounded top part of the humerus.
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Anatomical Neck
Anatomical Neck
Narrow region directly below the head of the humerus.
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Greater Tuberosity
Greater Tuberosity
Large bump on the humerus' lateral side.
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Lesser Tuberosity
Lesser Tuberosity
Smaller bump on the humerus' medial side.
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Intertubercular Groove
Intertubercular Groove
Groove between the greater and lesser tubercles.
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Surgical Neck
Surgical Neck
Narrow area just below the tubercles, prone to fracture.
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Lateral Supracondylar Ridge
Lateral Supracondylar Ridge
A ridge on the lateral side of the distal humerus.
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Medial Supracondylar Ridge
Medial Supracondylar Ridge
A ridge on the medial side of the distal humerus.
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Scapula
Scapula
Shoulder blade bone.
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Scapular Notch
Scapular Notch
Indent in the superior border of the scapula.
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Spine (Scapula)
Spine (Scapula)
Ridge that runs across the scapula.
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Glenoid Notch
Glenoid Notch
Indent in the scapula where the humerus attaches.
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Notch for Circumflex Scapular Artery
Notch for Circumflex Scapular Artery
A notch on the inferior scapula, allowing a blood vessel to pass through.
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Infraglenoid Tubercle
Infraglenoid Tubercle
A bump on the scapula, below the glenoid cavity.
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Supra Glenoid Tubercle
Supra Glenoid Tubercle
A bump on the scapula, above the glenoid cavity.
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Scapula
- 3 notches
- Suprascapular notch
- Spina glenoid notch
- Notch for circumflex scapular artery
- 3 tubercles
- Tubercle of the infraglenoid
- Supra glenoid tubercle
Glenoid Cavity
- Humerus
- Is the longest and largest bone of the upper extremity
- The humerus is the skeleton of the arm
- The humerus is divided into upper end, shaft, lower end
- The upper end of the humerus consists of:
- Head
- Anatomical neck
- Greater tuberosity
- Lesser tuberosity
- Intertubercular groove
- Surgical neck
- Humeral shaft
- The upper end of the humerus consists of:
- The humerus has 3 borders
- The humerus has 2 ridges (lateral supracondylar ridge, medial supracondylar ridge)
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