UPPER EXTREMITY Flashcards
Sternoclavicular jt is what type of joing?
a. Synovial ball and socket
b. Synovial double plane jt
c. Saddle
d. B and C
e. AOTA
A biker fell on his left shoulder during sports event. After medical examination, it was reported that the athlete’s shoulder was separated. Pain and swelling was noted at the point of the shoulder accompanied by a “step off deformity”. What might have caused this deformity?
a. Torn costoclavicular lig
b. torn acromioclavicular lig
c. torn coracohumeral lig
d. Both a and b
e. both B and C
what type of jt is GH jt?
a. synovial ball and socket
b. universal
c. spheroidal
d. A and B
e. AOTA
Which of the ffg is prevented by the coracoacromial lig?
a. upward translation of humeral head
b. ER
c. Downward translation of humeral head
d. Inferior subluxation
Which of fg provide (-) translatory force?
i. Supraspinatus
ii. Deltoids
iii. Infraspinatus
iv. Subscapularis
v. Teres minor
a. i, iii, v
b. i, ii, iv, v
c. i and ii
d. iii, iv, v
e. NOTA
A person is carrying a 12kg bag with one hand. which of the ffg is/are responsible for keeping the humeral head apposed to the glenoid cavity
a. biceps
b. AOTA
c. teres minor
d. deltoid
e. triceps
which statements are correct about the ABD of arm and shoulder
- high translatory force of the deltoid may cause jamming of the humeral head at the coracoacromial arch, thus ITS muscle need to contract simultaneously to provide inferior translator force to complete shoulder abduction
- Abduction is produced by means of the deltoid and supraspinatus mm working together
- ER of the humerus accompanies complete abduction
- Several mm acts as force couple to attain shoulder abduction
a. 1,2,3
b. 1,3
c. 2,4
d. 4
e. AOTA
Which of the ffg statements correctly describe abduction of the arm at the shoulder?
- rotator cuff mm depress the head of the humerus during shoulder abduction to prevent impingement of the humerus on the acromion
- IR of humerus accompanies complete abduction
- abduction is produced by means of the deltoid and supraspinatus mm working together
- ER of humerus accompanies complete abduction
- Abduction is more powerful in the position of ER than in the position of IR
a. 1,2,3,4
b. 1,2,4
c. 1,3,4,5
d. 1,4,5
Trapz and serratus anterior
a. act synergistically in abduction
b. Act as synergist in upward rotation and antagonists in protraction and retraction
c. act as synergist in retraction and antagonists in upward and downward rotation
d. Act as synergists in upward rotation and antagonists in depression
Which of the following statements do not apply to elbow flexion ROM
a. it has hard end feel on contact of mm between arm and FA
b. Contact of the mm between FA and arm can stop the motion
c. subjects with little soft-tissue have hard endfeel
d. Normal variation is between 120-160 deg
Elbow flexor tested when FA is supinated
a. Pronator teres
b. biceps brachii
c. brachialis
d. Brachioradialis
e.Anconeus
Contraction of brachioradialis during resisted elbow flexion exemplifies what class of lever?
a. class 1
b. class 2
c. class 3
d. NOTA
The 50 yo F pt presented with R-U fx (fx of both radius and ulnar). ROM exercises are very important since this FA movement may be affected which may lead to difficult hand fxn. Which FA mvmt are these?
a. wrist FD and PF
b. Pronate-supinate
c. Flexion-extension
d. Radial and ulnar deviation
the ffg applies to radio-ulnar articulation except the:
a. prox jt lies within the capsule of elbow jt
b. axis of motion is represented proximally by a line through the center of head of ulna and distally through the center of head of radius
c. radius rotate in relation to the ulna due to the connection between them
d. 1 DOF allows pronation-supination only
The annular ligament at the elbow facilitates which of the ffg motions?
a. ext. of elbow
b. pronation of FA and flex of elbow
c. supination of FA and flex of elbow
d. Pronation and supination of FA
