Long Bones -Forearm Flashcards

1
Q

label the radius

A

refer to the long bones pp

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2
Q

name each part of the radius (5 points)

A
  • radial Head
    -radial Neck
  • Radial tuberosity – bicep
  • Shaft
  • Styloid process
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3
Q

describe the proximal radio-ulna joint ?

A
  • Radial head articulates with proximal ulna
    (radial head also artiulate with captiulum)
  • radial notch – radius rotates here allowing pronation and supination
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4
Q

the proximal articulation of the radius with the humorous is knows as …

A

elbow joint

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5
Q

how can you visualise the proximal ulna ?

A

put hands in position of a cobra

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6
Q

name the skin of the cobra on the proximal ulna ?

A

-Olecranon process: projection of bone extends proximally forming back of the trochlear notch

  • skin of snake
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7
Q

name the belly of the cobra on the proximal ulna ?

A

Trochlear notch: Wrench shaped, articulates with trochlea of humerus

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8
Q

name the wrist part on the proximal ulna ?

A

Coronoid process: ridge of bone projects outwards anteriorly forming front part of trochlear notch

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9
Q

name the thumb part of the proximal ulna ?

A

Radial notch: lateral surface of trochlear notch articulates with head of radius

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10
Q

what does the capitiulum artiulate with ?

A

articulates with head ofradius (the Malteser

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11
Q

what does the trochea articulte with ?
(funny rectangle shape on humerous)

A

articulates proximal ulna

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12
Q

what does the coronoid fossa on the humerous receive… (anterior)

A

Coronoid fossa – receives coronoid process of ulna during flexion

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13
Q

what does the olecranon fossa accommodate…

A

Olecranon fossa – accommodates olecranon during extension (easy to see in a ap elbow)

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