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620: Clinical Human Anatomy > Arm Information > Flashcards

Flashcards in Arm Information Deck (18)
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1
Q

3 Bones of the Elbow complex

A
  • Humerus
  • Radius
  • Ulna
2
Q

What are the 3 ligaments of the elbow complex?

A
  • Radial (Lateral) Collateral Ligament
  • Ulnar (Medial) Collateral Ligament
  • Annular Ligament
3
Q

What are the 2 joints of the elbow complex?

A

Radioulnar Joint and Humeroulnar Joint

4
Q

What are the movements that happen at each of the two joints of the elbow complex?

A

Supination and Pronation at the Radioulnar Joint

Flexion and Extension at the Humeroulnar Joint

5
Q

Which is higher the trochlea or capitulum?

A

The capitulum on the lateral side

6
Q

What is the tissue membrane between the radius and ulna?

A

Interosseous membrane

7
Q

What does the ulnar collateral ligament connect?

A

The humerus to the ulna on the medial side

8
Q

What does the radial collateral ligament connect?

A

The humerus to the annular ligament on the lateral side where the capitulum of the humerus articulates with the radius

9
Q

What does the annular ligament do?

A

It straps the radius against the ulna

10
Q

When it comes to the radius and the ulna what rotates around what?

A

Radius pivots around ulna

11
Q

Valgus vs. Varus Forces

A

In a varus alignment, the distal segment deviates medially with respect to the proximal segment

In a valgus alignment, the distal segment deviates laterally with respect to the proximal segment.

12
Q

Cubitus Valgus in Males = __ degrees

Cubitis Valgus in Females = __ degrees

A

10

13

13
Q

Adecreased carrying angle, also known as a “Gunstock Deformity” is called what?

A

Cubital varus

14
Q

What is cubital varus usually due to?

A

An improperly reduced supracondylar fracture or epiphyseal abnormality during growth

15
Q

What is nursemaids elbow?

A

Pulling on the head of the radius that results in it moving inferiorly from the annular ligament

16
Q

What are the 3 nerves of the elbow joint?

A
  • Radial
  • Ulnar
  • Median
17
Q

What is dinner fork deformity?

A

Type fracture in which the distal part of radius is pushed backwards or the proximal part of radius is pushed forward that results from falling and landing on the palm of the hand

18
Q

What is a Smith’s fracture?

A

Type fracture in which the distal part of radius is pushed backwards or the proximal part of radius is pushed forward that results from falling with a pronated arm