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MSK Upper Limb Anatomy > Brachial Plexus > Flashcards

Brachial Plexus Flashcards

1
Q

Brachial plexus begins in what region?

A

Cervical

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2
Q

Brachial Plexus is formed by what rami?

A

Ventral C5-T1

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3
Q

The Axillary Nerve is made up of which nerve roots?

A

C5 and C6

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4
Q

The Musculocutaneous Nerve is made up of what nerve roots?

A

C5-C7

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5
Q

The Radial Nerve is made up of what nerve roots?

A

C5-T1

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6
Q

The median nerve is made up of what nerve roots?

A

C6-T1

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7
Q

What nerve roots form upper trunk of brachial plexus?

A

C5 and C6

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8
Q

Which roots of brachial plexus contribute to lower trunk?

A

C8 and T1

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9
Q

Which nerve root forms middle trunk of brachial plexus?

A

C7

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10
Q

Which artery and vein are the trunks of brachial plexus closely related to?

A

Axillary Artery and Vein

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11
Q

The division of the brachial plexus trunks form how many cords of brachial plexus in axilla?

A

Three

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12
Q

Injury to upper trunk causes what type of Palsy?

A

Erb’s Palsy

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13
Q

How does Erb’s palsy present?

A

Waiter’s Tip appearance of Upper Limb - Medial Rotation of Arm with Wrist Flexion

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14
Q

Which group of muscles are affected in Erb’s palsy?

A

C5-6

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15
Q

Injury to lower trunk of arm causes what type of palsy?

A

Klumpke’s palsy

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16
Q

Klumpke’s palsy presents how

A

Intrinsic Muscles of Hand (Claw Hand, Flexors of Wrist and Flexor Muscles of Fingers

17
Q

Erb and Klumpke’s palsies are commonly caused by what type of injury?

A

Shoulder Dystocia at Birth or following trauma

18
Q

How many main terminal branches are in brachial plexus from the cords?

A

5

19
Q

Which nerves comes from posterior cord in brachial plexus?

A

Axillary and Radial

20
Q

Which nerve comes from lateral cord in brachial plexus?

A

Musculocutaneous

21
Q

Which nerve comes from medial cord in brachial plexus?

A

Ulnar

22
Q

Which nerve comes from both lateral and medial cord in brachial plexus?

A

Median

MSK Upper Limb Anatomy (35 decks)

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