Anatomy: The Upper Limb Flashcards
What makes up the shoulder girdle
clavicle scapula sternoclavicular joint acromioclavicular joint glenohumeral joint
What is the function of the labrum
increases capture of the humeral head and increases stability
name the rotator cuff muscles
supraspinatous
infraspinatous
teres minor
subscapularis
Where is the origin of the supraspinatous
supraspinous fossa
Where is the insertion of the supraspinatous
the greater tuberosity of the humerous
What innervates the supraspinatous
the suprascapular nerve (C5/C6)
What is the function of the supraspinatous
abducts the arm
Name the following of the infraspinatous:
- origin
- insertion
- innervation
- function
- infraspinous fossa
- greater tuberosity of the humerous
- suprascapular nerve
- externally rotates the arm
Name the following about the teres major:
- origin
- insertion
- innervation
- function
dorsal surface of lateral border of scapula
- greater tuberosityof the humerous
- axillary (C5 and 6)
- externally rotates arm
Subscapularis:
- origin
- insertion
- innercaion
- function
- anterior surface of scapula
- lesser tuberosity of humerous
- upper and lower subscapular nerve (C5/6)
- internally rotates arm
Deltoid:
Origin-clavicle, acromion, spine of scapula
Insertion- deltoid tuberosity of humerous
Innervation- axillary
- Adbucts the arm
Where is the origin of the short head of the biceps brachii
coracoid process
Where is the origin of the long head of the biceps brachii
labrum/glenoid
Where does the biceps insert
tuberosity of the radius
What innervates the biceps
musculocutaneous nerve
What is the function of the biceps
flexes elbow
supinates forearm
where is the site of insertion for all of the extensor muscles of the forearm
lateral epicondy
Which compartment is the extensor compartment of the forearm in
the dorsal compartment
Where is the site of insertion for all of the flexor muscles of the forearm
the medial epicondyle of the humerous
which compartment is the flexor muscles of the forearm
the volar compartment
Name the carpal bones
From thumb- Scaphoid, Lunate, Triquetral, Pisiform
From thumb- trapezium , trapezius, capitate, hamate
What muscles move the thumb
the thenar muscles
Name the three muscles of the thumb
- Opponens pollicis
- Flexor pollicis brevis
- Abductor Pollucis brevis
What nerve supplies the muscles of the thumb
median
