Dissection 18 Flashcards
What is the innervation of the rhomboid muscles?
dorsal scapular nerve
What is the innervation to the levator scapulae?
dorsal scapular nerve
Which muscle is the “hugging muscle”?
pectoralis major
What are the anterior muscles of the SC joint?
serratus anterior and pec minor
What are the posterior muscles of the SC joint?
rhomboids, levator scapulae, and trap
What muscles of the glenohumeral joint are twin functionally?
lat dorsi and teres major
What innervates the infra and supraspinatus muscles?
suprascapular
What innervates the subscapularis muscle?
middle and lower subscapular nerve
The axillary nerve runs with what artery?
posterior humeral circumflex
The lower subscapular nerve runs with what artery?
circumflex scapular
What artery does the radial nerve run with?
deep branchial artery
What are the anterior muscles of the glenohumeral joint?
biceps brachii, deltoid, coracobrachialis, and pec major
What are the posterior muscles of the glenohumeral joint?
triceps brachii, deltoid, lat dorsi, teres major
What are the handcuff muscles?
lat dorsi and teres major
The lat dorsi is innervated by what nerve?
thoracodorsal nerve
What is the teres major innervated by?
lower subscapular nerve
what is the deltoid muscle innervated by?
the axillary nerve
what is the brachilais innervated by?
musculocutaneous
What is the brachioradialis innervated by?
radial nerve
What are the two muscles that do abduction of the GH joint?
deltoid and supraspinatus
What are the two muscles that do lateral rotation of the SC joint?
serratus anterior and trap
What is the function of the musculocutaneous nerve?
motor to the anterior arm and cutaneous innervation to the lateral forearm
what muscle does the musculocutaneous nerve pierce?
coracobrachialis
What is the main extensor of the elbow joint?
triceps brachii
what posterior compartment muscle is a flexor of the elbow joint
brachioradialis
What muscle is the “handshake” muscle
brachioradialis
which compartment of the supinators found in?
posterior
which compartment of the pronators found in
anterior
What artery supplies the posterior forearm?
deep brachial
What are some examples of intracapsular ligaments?
the cruciate ligaments of the knee
The only articulation between the pectoral girdle and the trunk is which joint?
The SC joint
What 3 types of movements does the SC joint allow?
elevation/depression, protraction/retraction, and medial/ lateral rotation
dislocation of the SC joint usually occurs in what direction?
anterior
what two joints are called the shoulder girdle joints?
the SC and the AC
dislocation of which joint results in shoulder separation?
AC (and the coracoclavicular)
What movements occur around the glenohumeral joint?
flexion/extension, adduction/abduction and medial/lateral rotation
In which direction do shoulder dislocations usually occur?
inferiorly
The proximal radioulnar joint causes movement in which direction?
supination and pronation
what movement does the humeroradial joint allow?
supination/pronation and extension/flexion
The elbow is most often dislocated in which direction?
posterior
which SITS tendon is most often torn?
supraspinatus
flexors attach to the ______ epicondyle of the humerus
medial
