Musculoskeletal

Question 1

what is the strongest ligament that passively suspends the scapula from the clavicle?

Answer 1

the coracoclavicular ligament
- has two components to it

Question 2

what is the function of the coracohumeral ligament?

Answer 2

suspends the humerus from the scapula when the arm is adducted

Question 3

what ligament primarily prevents superior dislocation of the humerus?

Answer 3

the coracoacromial ligament
the coracoacromial arch

Question 4

latissimus dorsi 1º and 2º movements?

Answer 4

adducts humerus
- internal rotation of humerus

Question 5

what is the origin of the long head of the triceps brachii

Answer 5

the infraglenoid tubercle

Question 6

which muscles are on the lateral lip, medial lip and floor of the intertubercular groove?

Answer 6

Lat dorsi - floor
Teres major - medial
pectoralis major - lateral

Question 7

what two muscles of the extensor compartment don’t originate from the common extensor tendon?

Answer 7

brachioradialis
ECRL

Question 9

what are the outcropping muscles?

Answer 9

EPB and APL

Question 10

lunate and scaphoid articulate with?

Answer 10

the capatate and the distal end of the radius

Question 11

triquetral articulates with?

Answer 11

fibrocartilage articular disk, pisiform and hamate

Question 12

which carpal is the longest?

Answer 12

capatate

Question 13

FDS acts on the ______ joint, while FDP acts on the _____ joint

Answer 13

proximal interphalangeal
distal interphalangeal

Question 14

____ holds the radius onto the ulna distally, and ____ does this proximally

Answer 14

pronator quadratus
annular ligament

Question 15

what provides grip strenght?

Answer 15

flexor compartment

Question 16

free limb=?

Answer 16

arm, forearm, hand

Question 17

the glenohumeral joint is reinforced anteriorly and inferiorly by what?

Answer 17

three weak thickenings of the articular capsule - the glenohumeral ligaments
- and subscapularis

Question 18

how many joints are in the wrist?

Answer 18

3

Question 19

where does the radial/lateral collateral ligament attach?

Answer 19

from the lateral epicondyle to the annular ligament

Question 20

list the wrist joints from most to least movement

Answer 20

radio-carpal (wrist joint proper)
mid-carpal
carpo-metacarpal apart from thumb

Question 21

describe the acromioclavicular joint

Answer 21

relatively loose, but strengthened superiorly and inferiorly by capsular acromioclavicular ligaments

Question 22

what four ligaments are a part of the sternoclavicular joint?

Answer 22

• anterior and posterior sternoclavicular ligaments
• costoclavicular ligaments
• interclavicular ligaments

Question 23

what is the insertion of pec minor

Answer 23

the coracoid process

Question 24

subclavius

Answer 24

from costal cartilage of first rib to subclavian groove

Question 25

what do subclavius and pec minor do

Answer 25

depress the scapula

Question 26

where does FCU insert?

Answer 26

on the pisiform and the base of the 4th and 5th metacarpals

Question 27

in which muscle do the thin parts superiorly rotate the scapula?

Answer 27

the trapezius