3.4.3. Adductor Muscle Compartment Flashcards

1
Q

What are the 2 Groups, which the Muscles that act on the Hand, can be Divided into?

A
  1. Extrinsic Muscles

2. Intrinsic Muscles

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2
Q

Where are the Extrinsic Muscles of the Hand located?

A
  1. Anterior Compartment of the Forearm

2. Posterior Compartment of the Forearm

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3
Q

What are the functions of the Extrinsic Muscles of the Hand?

A
  1. Control Crude Movements

2. Produce a Forceful Grip

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4
Q

Where are the Intrinsic Muscles of the Hand located?

A

Within the Hand itself

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5
Q

What is the function of the Intrinsic Muscles of the Hand?

A

Fine Motor Control of the Hand

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6
Q

What are the 5 Muscle Compartments, of the Intrinsic Muscles of the Hand?

A
  1. Thenar Muscle Compartment
  2. Hypothenar Muscle Compartment
  3. Adductor Compartment
  4. Lumbricals and Long Flexor Tendons (Central) Compartment
  5. Interossei Compartment
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7
Q

How many Muscles are in the Adductor Muscle Compartment?

A

1

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8
Q

What is the name of the Muscle in the Adductor Muscle Compartment?

A

Adductor Pollicis

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9
Q

How is the Adductor Pollicis described?

A

A Large, Triangular Muscle

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10
Q

How many Heads does the Adductor Pollicis have?

A

2

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11
Q
  1. What passes Anteriorly, in the Space Between the 2 Heads of the Adductor Pollicis?
  2. What does this form?
A
  1. Radial Artery

2. Deep Palmar Arch

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12
Q

Where does the Adductor Pollicis Originate from?

A
  1. One Head Originates from the Third Metacarpal
  2. One Head Originates from:
    a) Capitate
    b) Adjacent Areas of the Second and Third Metacarpals
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13
Q

Where does the Adductor Pollicis attach distally?

A

Base of the Proximal Phalanx of the Thumb

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14
Q

What is the function of the Adductor Pollicis?

A

Adduction of the Thumb

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15
Q

What innervates the Adductor Pollicis?

A

Deep Branch of the Ulnar Nerve

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