Long Bones -Forearm

Question 1

label the radius

Answer 1

refer to the long bones pp

Question 2

name each part of the radius (5 points)

Answer 2

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

Question 3

describe the proximal radio-ulna joint ?

Answer 3

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

Question 4

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

Answer 4

elbow joint

Question 5

how can you visualise the proximal ulna ?

Answer 5

put hands in position of a cobra

Question 6

name the skin of the cobra on the proximal ulna ?

Answer 6

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

• skin of snake

Question 7

name the belly of the cobra on the proximal ulna ?

Answer 7

Trochlear notch: Wrench shaped, articulates with trochlea of humerus

Question 8

name the wrist part on the proximal ulna ?

Answer 8

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

Question 9

name the thumb part of the proximal ulna ?

Answer 9

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

Question 10

what does the capitiulum artiulate with ?

Answer 10

articulates with head ofradius (the Malteser

Question 11

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

Answer 11

articulates proximal ulna

Question 12

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

Answer 12

Coronoid fossa – receives coronoid process of ulna during flexion

Question 13

what does the olecranon fossa accommodate…

Answer 13

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