3.1.2. Intermediate Musles of the Anterior Forearm Flashcards Preview

3rd Year - MSK Upper Limb Anatomy > 3.1.2. Intermediate Musles of the Anterior Forearm > Flashcards

Flashcards in 3.1.2. Intermediate Musles of the Anterior Forearm Deck (14)
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1
Q

What are the Categories of the Muscles of the Anterior Compartment of the Forearm?

A
  1. Superficial
  2. Intermediate
  3. Deep
2
Q

What are the General Actions of the Muscles of the Anterior Compartment of the Forearm?

A
  1. Flexors of the Wrist
  2. Flexors of the Fingers
  3. Pronators of the Forearm
3
Q

What is the Only Intermediate Muscle of the Anterior Compartment of the Forearm?

A

Flexor Digitorum Superficialis

4
Q

Is the Flexor Digitorum Superficialis always classed as an Intermediate Muscle of the Anterior Compartment of the Forearm?

A

No, it is sometimes classified as a Superficial Muscle of the Anterior Compartment of the Forearm

5
Q

Where is the Intermediate Muscles of the Anterior Compartment of the Forearm located?

A

Between the:

  1. Superficial Muscles of the Anterior Compartment of the Forearm
  2. Deep Muscles of the Anterior Compartment of the Forearm
6
Q

How many Heads does the Flexor Digitorum Superficialis have?

A

2

7
Q

Where do the 2 Flexor Digitorum Superficialis Heads Originate from?

A
  1. Medial Epicondyle of the Humerus

2. Radius

8
Q

Why is the Flexor Digitorum Superficialis a good Anatomical Landmark?

A

The Median Nerve and Ulnar Artery pass between the 2 Heads, and then Travel Posteriorly

9
Q

What happens to the Muscle as it travels?

A

It Splits into 4 Tendons

10
Q

Where do the 4 Tendons of the Flexor Digitorum Superficialis attach Distally?

A

Middle Phalanges (Phalanx) of the 4 Fingers

11
Q

What are the functions of the Flexor Digitorum Superficialis?

A
  1. Flexion of the Metacarpophalangeal Joints at the 4 Fingers
  2. Flexion of the Proximal Interphalangeal Joints at the 4 Fingers
  3. Flexion of the Wrist
12
Q

Can the Flexor Digitorum Superficialis act on the Distal Interphalangeal Joints?

A

No, only on the Proximal Interphalangeal Joints

13
Q

What Muscle acts on the Distal Interphalangeal Joints?

A

Flexor Digitorum Profundus

14
Q

What is the innervation of the Flexor Digitorum Superficialis?

A

Median Nerve

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