Shoulder Girdle
Glenohumeral Joint
'Elbow' Joint
Unit 2 Questions
Unit 2 Questions
100

The acromioclavicular joint is classified as a _____ type of diarthrotic articulation.      

Gliding
100

All skeletal muscles eliciting motion at the glenohumeral joint are innervated by nerves in the _____ plexus.      

brachial

100

What 'elbow' muscle may be referred to as the "hitchhiker's muscle"?

brachioradialis

100

The prime agonist of humeroulnar extension

triceps brachii

100

Which rotator cuff muscle is a prime agonist of glenohumeral internal rotation?      

subscapularis

200

Describe the relationship of the rhomboids to the trapezius.

Rhomboids are deep to the trapezius

200

Describe scapular movement during glenohumeral flexion.

Elevated

Upwardly rotated

Abducted
200

The proximal and distal radiolunar joints are classified as _____ type of diarthrotic articulations.      

pivot

200

The humeroradial joint is a _____ type of diarthrotic articulation.

gliding

200

Identify the 5 articulations of the shoulder girdle complex

acromioclavicular

sternoclavicular

coracoclavicular

scapulothoracic

glenohumeral

300

Which scapular muscle assists in elevating the ribs during inspiration?

pectoralis minor

300

Identify the muscles of the rotator cuff

supraspinatus

infraspinatus

teres minor

subscapularis

300

Describe the specific articulating structures of the humeroulnar joint.

humeral trochlea + ulnar trochlear fossa

300

The ligament that stabilizes the radial head against the radial notch of the ulna.

annular ligament

300

Identify two resistance exercises particularly effective for strengthening the scapular protractors.

Bench press

Push up

Chest fly

400

Describe the effect of habitual poor postures related to seated desk work & cell phone use on scapular muscles. (i.e. what muscle group is tight and weak?)

Scapular protractors become tight

Scapular retractors become weak

400

Which glenohumeral joint actions occur in the transverse plane?

horizontal abduction and adduction

internal and external rotation

400

Define and describe (angle) the carrying angle

Lateral deviation of the forearm from the upper arm in anatomic position

5-15 degrees

400

Describe scapular movement during glenohumeral abduction.

elevated 

upwardly rotated


400

"Hammer curls," in which the radioulnar joint is in a neutral position, emphasizes which elbow flexor?      

brachioradialis

500

Identify two resistance exercise effective for strengthening the scapular retractors.

Row ('lawnmower pull')

Chin ups, pulls ups

Parallel bar dips

Reverse fly

500

Identify the prime agonists of GH horizontal abduction

deltoid - middle and posterior

latissimus dorsi*

infraspinatus

teres minor

500
Identify the actions of the biceps brachii at the 'elbow'

humeroulnar flexion

radioulnar supination

500

Frontal raises, barbell overhead presses, and parallel bar dips are examples of which glenohumeral movement?

Glenohumeral flexion

500

Identify two resistance exercises effective in strengthening glenohumeral abductors.

lateral raises

upright rows

dumbbell overhead press

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