Chapter 8.2 The Upper Limb Flashcards by Ben Wudke

Q

How many bones form the arm?

A

1 (humerus)

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Q

Proximal articulation of humerus?

A

Glenoid cavity of scapula

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Q

Distal articulations of humerus?

A

Radius + ulna

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Q

Name the two proximal tubercles.

A

Greater tubercle, lesser tubercle

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Q

What lies between the tubercles?

A

Intertubercular (bicipital) groove

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Q

Most common fracture site of humerus?

A

Surgical neck

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Q

Deltoid attachment site?

A

Deltoid tuberosity

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Q

What nerve runs in radial groove?

A

Radial nerve

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Q

Distal condyles of humerus?

A

Trochlea (ulna), capitulum (radius)

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Q

Posterior distal fossa?

A

Olecranon fossa

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Q

Anterior distal fossae?

A

Coronoid fossa (medial), radial fossa (lateral)

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Q

Bones of the forearm?

A

Radius (lateral) + ulna (medial)

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Q

What connects radius and ulna?

A

Interosseous membrane

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Q

Main elbow bone?

A

Ulna

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Q

Ulna processes forming hinge?

A

Olecranon + coronoid

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Q

What fits into humeral trochlea?

A

Trochlear notch (ulna)

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Q

When elbow is extended, what locks?

Study These Flashcards

A

Olecranon → olecranon fossa

Q

Lateral ulna feature for radius?

Study These Flashcards

A

Radial notch

Q

Distal ulna projections?

Study These Flashcards

A

Head + styloid process

Q

Proximal radius shape?

Study These Flashcards

A

Spool-shaped head

Q

Radius articulation with humerus?

Study These Flashcards

A

Capitulum

Q

Biceps attachment on radius?

Study These Flashcards

A

Radial tuberosity

Q

Primary wrist bone?

Study These Flashcards

A

Radius

Q

Function of radius rotation?

Study These Flashcards

A

Moves hand (pronation/supination)

Colles’ fracture involves which bone?

Distal radius

Three regions of the hand?

Carpus, metacarpus, phalanges

How many carpal bones?

8

Carpal bones (proximal → distal)?

Scaphoid, lunate, triquetrum, pisiform / trapezium, trapezoid, capitate, hamate

Mnemonic for carpals?

Sally Left The Party To Take Carmen Home

Which carpals form wrist joint?

Scaphoid + lunate

Most fractured carpal?

Scaphoid

Number of metacarpals?

5 (I–V)

Which metacarpal is most mobile?

I (thumb)

What forms knuckles?

Metacarpal heads

How many phalanges per finger?

3 (proximal, middle, distal)

Which digit lacks middle phalanx?

Thumb (pollex)

Digits numbered from?

I (thumb) → V (little finger)

What forms the carpal tunnel?

Carpal concavity + ligament

Main nerve in tunnel?

Median nerve

Cause of carpal tunnel syndrome?

Nerve compression from inflammation/overuse

Main symptoms?

Numbness, tingling, weak thumb, night pain

Basic treatments?

Splint, NSAIDs, surgery