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AAO Exam 2 Questions with
Detailed Verified Answers
Erb's Palsy Ans: Arm hangs by side with shoulder extension
Elbow cannot flex (elbow extended)
Arm medially rotated
Forearm pronated
wrist flexed.
Waiter's tip
Loss of sensation over deltoid (C5) and lateral upper limb (C6).
Stinger or Burner Syndrome Ans: occur following a stretch or
compression injury to BP from a blow to the head or shoulder.
Symptoms: immediate burning pain, prickly paresthesia from neck,
numbness, a brief paralysis of arm
Saturday Night Palsy Ans: Radial Nerve becomes compressed as it
spirals around mid-humerus
Pectorals Major Innervation Ans: Lateral and Medial Pectoral
Nerve
Pectoralis Minor Innervation Ans: Medial Pectoral Nerve
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Brachial Plexus (BP) injuries of young infant with waiter's tip
symptoms Ans: Arm hangs down with hand turned backwards.
Paralysis of Shoulder and Arm muscles
Ulnar Nerve Sensory Ans: Skin over medial surface of the hand
through the superficial arch
Median Nerve Sensory Ans: Anterolateral surface of hand
Radial Nerve Sensory Ans: No Sensory
C7 spinal cord injury would impact which muscles Ans: Triceps /
Hands
T1 spinal cord injury would impact which muscles Ans: Upper Torso
Weakness in the serratus anterior would cause weakness where
Ans: Shoulder
Scapular Winging
Injury to Long thoracic nerve
The position of the scapula when throwing overhead Ans: upward
rotation
Hand position when holding a small cube Ans: pinch grip
Hand position when holding a small cube and there is difficulty
holding it (why)? Ans: Median Nerve: No Thumb opposition
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C5 spinal cord injury allows for holding objects because of what
action Ans: Anterior Cord Syndrome maybe ?
Levator Scapulae Motions Ans: Elevate Scapula
Rhomboid Major Motions Ans: Elevate Scapula
ADduct Scapula
Rhomboid Minor Motions Ans: retracts the scapula when trapezius
is contracted
elevate medial border of the scapula medially and upward,
working in tandem with the levator scapulae muscle to rotate the
scapulae downward.
Force couple Ans: Occurs when 2 or more forces act in different
directions resulting in a turning effect
Merry-Go Round effect
What muscles are actively involved : Force couple Ans: Upper
Trap pulls up and In
Lower Trap pulls down
Serratus Anterior Pulls Out
Combined Effect= Shoulder Rotation
Tenderness of the coracobrachialis over the coracoid process—
what does this ligament look like. Ans: Coracoid Syndrome???
AAO Exam 2 Questions with
Detailed Verified Answers
Erb's Palsy Ans: Arm hangs by side with shoulder extension
Elbow cannot flex (elbow extended)
Arm medially rotated
Forearm pronated
wrist flexed.
Waiter's tip
Loss of sensation over deltoid (C5) and lateral upper limb (C6).
Stinger or Burner Syndrome Ans: occur following a stretch or
compression injury to BP from a blow to the head or shoulder.
Symptoms: immediate burning pain, prickly paresthesia from neck,
numbness, a brief paralysis of arm
Saturday Night Palsy Ans: Radial Nerve becomes compressed as it
spirals around mid-humerus
Pectorals Major Innervation Ans: Lateral and Medial Pectoral
Nerve
Pectoralis Minor Innervation Ans: Medial Pectoral Nerve
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Brachial Plexus (BP) injuries of young infant with waiter's tip
symptoms Ans: Arm hangs down with hand turned backwards.
Paralysis of Shoulder and Arm muscles
Ulnar Nerve Sensory Ans: Skin over medial surface of the hand
through the superficial arch
Median Nerve Sensory Ans: Anterolateral surface of hand
Radial Nerve Sensory Ans: No Sensory
C7 spinal cord injury would impact which muscles Ans: Triceps /
Hands
T1 spinal cord injury would impact which muscles Ans: Upper Torso
Weakness in the serratus anterior would cause weakness where
Ans: Shoulder
Scapular Winging
Injury to Long thoracic nerve
The position of the scapula when throwing overhead Ans: upward
rotation
Hand position when holding a small cube Ans: pinch grip
Hand position when holding a small cube and there is difficulty
holding it (why)? Ans: Median Nerve: No Thumb opposition
, Page | 3
C5 spinal cord injury allows for holding objects because of what
action Ans: Anterior Cord Syndrome maybe ?
Levator Scapulae Motions Ans: Elevate Scapula
Rhomboid Major Motions Ans: Elevate Scapula
ADduct Scapula
Rhomboid Minor Motions Ans: retracts the scapula when trapezius
is contracted
elevate medial border of the scapula medially and upward,
working in tandem with the levator scapulae muscle to rotate the
scapulae downward.
Force couple Ans: Occurs when 2 or more forces act in different
directions resulting in a turning effect
Merry-Go Round effect
What muscles are actively involved : Force couple Ans: Upper
Trap pulls up and In
Lower Trap pulls down
Serratus Anterior Pulls Out
Combined Effect= Shoulder Rotation
Tenderness of the coracobrachialis over the coracoid process—
what does this ligament look like. Ans: Coracoid Syndrome???
