HSU PA Human Anatomy Exam 1 Questions & Answers 2024/2025
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HSU PA Human Anatomy
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HSU PA Human Anatomy
HSU PA Human Anatomy Exam 1 Questions & Answers 2024/2025
How is the scapula attached to the trunk? - ANSWERSMuscles mostly by serratus, and it is attached to the skeleton by the sternoclavicular joint
Which of the rotator cuff muscles medial rotates the shoulder joint? - ANSWERSsubscapular...
HSU PA Human Anatomy Exam 1
Questions & Answers 2024/2025
How is the scapula attached to the trunk? - ANSWERSMuscles mostly by serratus, and it is attached to
the skeleton by the sternoclavicular joint
Which of the rotator cuff muscles medial rotates the shoulder joint? - ANSWERSsubscapularis
What nerve innervates the infraspinatus muscle? - ANSWERSSuperscapular nerve c5-c6
In addition to movement of the shoulder joint, what is a key function of the rotator cuff muscles? -
ANSWERSStabilize the glenohumeral joint.
If the superscapular nerve is damaged, what movement(s) of the shoulder would be affected? -
ANSWERSLateral rotation and initiation of abduction (damages the supraspinatus m)
In abducting the arm, what muscle raises the arm to the horizontal position? What nerve is involved? -
ANSWERSDeltoid m; axillary n
Rotator cuff injuries most commonly involve which rotator cuff muscle or tendon? -
ANSWERSSuperspinatous
How is the clavicle often broken? - ANSWERSFalling on the outstretched hand. occurs in older people
At what anatomic landmark does the subclavian artery become the axillary artery? - ANSWERS1st rib
What is the largest branch of the axillary artery? What are its two major branches? -
ANSWERSSubscapular; scapular circumflex and thoracodorsal
, To insure survival of the upper limb (especially the hand) where can the axillary artery be ligated during
an emergency procedure following a traumatic bullet-induced tear in the axillary artery just below the
clavicle? - ANSWERSAnywhere proximal to subscapular.
What is the name for the most common upper brachial plexus injury? - ANSWERSHerbs palsy - during
birth or falls.
What is the name of the highest axillary lymph nodes within the axilla? - ANSWERSApical lymph nodes.
How does lymph from the axilla enter the circulation? - ANSWERSAxillary lymph nodes Drain into the
subclavian vein
What results in a Colles' fracture? - ANSWERSFx of the distal radius when fall with outstretched arm,
most common in age greater than 50
What vein is commonly used for venipuncture? Where is it located? - ANSWERSMedial cubital,
superficial to the cubital fossa
What is the primary (and most powerful) supinator of the forearm? - ANSWERSBiceps brachii
Name the main flexor of the forearm. - ANSWERSbrachialis
Name the divisions of the brachial artery where it splits at the region of the cubital fossa. -
ANSWERSRadial and ulnar
List the nerves and their neuromuscular relationships in the forearm. - ANSWERSradian n- 6.5 flexor
muscles
ulnar n - 1.5 flexor muscles
What is the characteristic clinical sign of a radial nerve injury at the level of the radial groove of the
humerus? - ANSWERSwrist drop
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