Midterms Quizzes Flashcards
Muscle that is not attached to humerus:
Supraspinatus
Pectoralis Major
Pectoralis Minor
Teres Major
Pectoralis Minor
External Rotator of the shoulder
Infraspinatus
This is known to be the broadest muscle of the back
Latissimus Dorsi
Muscles with a greater ___________ of pull will be effective in pulling the scapula up or down.
Vertical angle
Strong adductor of the shoulder
Deltoid
Innervation of the serratus anterior
long thoracic nerve
one of the muscles that connects the shoulder girdle to the humerus
supraspinatus
one of the muscles that connects the trunk to the humerus
pectoralis major
Responsible for shoulder retraction
trapezius and rhomboids
rotator cuff muscles are composed of the following except:
teres major
muscles the inserts to the greater tubercle except:
supraspinatus
infraspinatus
teres minor
subscapularis
subscapularis
what portion of this (DELTOID) muscle acts on shoulder flexion
anterior
TRUE or FALSE: The cubital angle of males are greater than of females
false
On average, women had a greater valgus angulation than men by about 2 degrees. Two studies using a large sample of healthy subjects have shown that, regardless of gender, valgus angle is greater on the dominant arm (Neumann)
The ligament that is part of the MCL that does not provide significant articular stability.
Transverse fibers
TRUE or FALSE: The Interosseous Membrane of the forearm is taut during distraction forces
false (distraction forces: relaxed)
The ligament that wraps around the head of the radius
Annular Ligament
This is a common injury among toddlers & preschoolers that occurs when the ligament holding the radius in place at the elbow joint slips, causing the end of the radius to shift out of position
Nursemaid’s elbow
Pulled elbow
TRUE or FALSE: Valgus force will stress the ulnar collateral ligament
TRUE
Closed-packed position of the humeroulnar joint
full extension of the elbow (congruent ung articulating structure)
It acts as a supinator in extreme pronation
Brachioradialis (elbow flex, from full pronation to supinate, from full supination to pronate)
True about olecranon bursitis:
Miner’s elbow
Student’s elbow
Draftsman’s elbow
All of these
None of these
All of these
Passive Insufficiency of the triceps brachii will limit what motion?
Elbow flexion
How much stronger of a supinator is the biceps brachii when positioned at 90 degrees?
4x more than the supinator