constitution of nerve
motor innervation
m. teres minor
sensor innervation
muscular function
M. DELTOIDEUS
it lifts the arm to the horizontal – see modificated examination of abduction
at muscular test. The restricted abduction in the shoulder joint at the
compressive syndrome of n. axillaris can seem as a picture of a
frozen shoulder – a passive motility is not restricted!!
(M. supraspinatus, m. trapezius, m. biceps brachii and scapular muscles
can partly substitute the function of the deltoid muscle. But more serious
disorders of n. axillaris prejudice the function of the arm in a radical
way.
symptom
 | atrophy of the deltoid muscle which distinctly changes a configuration of the shoulder |
| weakness of strength at the examination of abduction horizontally |
causes
a strong impact on the shoulder, often luxation or subluxation of the shoulder joint (at following immobilization - paralysis of a nerve can be unrecognized)
pain
is not there
disorder of sensitiveness
shedding of sensation is little notable
