Upper Limb Flashcards
how many muscles in pectoral girdle?
7
how many ant pec girdle muscles?
3
how many post pec girdle muscles?
4
name 3 ant pec gridle muscles
- subclavius
- serratus ant
- pec minor
name 4 post pec girdle muscles
- trapezius
- levator scapulae
- rhomboid major
- rhomboid minor
how many shoulder muscles
8
what are the 2 compartments in the shoulder?
extrinsic and instrinsic
how many extrinsic shoulder muscles?
2
how many instrinsic shoulder muscles?
6
where is the rotator cuff?
instrinsic shoulder
name 2 extrinsic shoulder muscles
- lattisimus dorsi
2. pec major
name 6 instrinsic shoulder muscles
- infraspinatus
- supraspinatus
- subscapularis
- teres minor
- teres major
- deltoid
how many arm muscles?
4
what are the compartments in the arm?
anterior and posterior
what muscles is in the posterior arm?
triceps brachii
what are the 3 heads of the triceps brachii?
long
medial
lateral
what are the 3 anterior arm muscles
- biceps brachii
- coracobrachialis
- brachialis
what are the 2 heads of the biceps brachii?
long
short
how many muscles in forearm; numbers in each compartment
19 ; 413 353
name anterior superficial forearm muscles
PFPF
- pronater teres
- flexor carpi radialis
- palmaris longus
- flexor carpi ulnaris
name anterior intermediate forearm muscle
flexor digitorum superficialis
name anterior deep forearm muscles
- flexor digitorum profundus
- flexor pollicus longus
- pronater teres
name posterior superficial forearm muscles
- extensor digitorum
- extensor digitorum minimi
- extensor carpi ulnaris
name posterior deep forearm muscles
- supinator
- abductor pollicus longus
- extensor pollicus longus
- extensor pollicus brevis
- extensor indicis
name posterior radialis forearm muscles
- extensor carpi radialis longus
- extensor carpi radialis brevis
- brachioradialis
Origin of subclavius
border between costochondral cartilage and rib 1
origin of pec minor
ribs 3-5 and deep fasica from intercostal spaces
insertion of subclavius
medial 1/3 of inferior clavicle
insertion of pec minor
coracoid process - the medial border and upper surface
action of subclavius
steadies clavicle at sternoclavicular joint
action of pec minor
draws scapula downwards and protracts it
what muscle assists in respiration?
pec minor
innervation of pec minor
Medial pectoral nerve (C5-T1)
The subclavius nerve supplies the subclavius muscle. What are the vertebrae it includes?
C5, C6
3 parts of serratus ant?
superior, intermediate and inferior
Motor nerve supplying trapezius?
accessory nerve CN XI (11)
function of rhomboid minor
elevates and retracts scapula
origin of levator scapulae?
transverse process of C1-C5
Which 3 muscles does the dorsal scapular nerve supply?
- rhomboid minor
- rhomboid major
- levator scapulae
3 nerves supply the levator scapulae,one is the dorsal scapular nerve. what are the others?
spinal nerves C3-C4
function of levator scapulae?
elevates scapula
function of serratus ant (All)
protraction and rotation of scapula.
keeps medial border and inf angle of scapula close to thoracic wall.
origin of inferior serratus ant?
ribs 3-9
function of superior trapezius
draws scapula obliquely upward, rotating glenoid cavity
function of middle trapezius?
draws scapula medially
function of ascending trapezius
draws scapula medially downward
what does the long thoracic nerve supply ? C5-C7
serratus ant
origin of superior serratus ant?
ribs 1-2
insertion of superior trapezius?
lateral clavicle
insertion of rhomboid minor?
medial border of scapula at the root of scapular spine
the spinous processes of T1-T4 are the origin of what pec girdle muscle?
rhomboid major
origin of inferior trapezius?
spinous processes T5-T12
insertion of rhomboid major
medial border of scapula - from the root of scapular spine to the inferior angle
sensory innervation of trapezius?
C3-C4
function of rhomboid major
elevates and retracts scapula
insertion of serratus ant?
costal surface of medial border of scapula
insertion of inferior trapezius?
scapular spine
insertion of middle trapezius
acromion
origin of trapezius?
occipital bone, spinous processes C1-C7
Origin of intermediate serratus ant?
rib 2
insertion of levator scapulae?
medial border of scapula - superior to the root of scapular spine at the superior angle
origin of rhomboid minor
spinous processes C6-C7
origin of middle trapezius?
spinous processes T1-T4