Back and Shoulders Flashcards
Where do extrinsic back muscles originate from/ insert?
vertebral column/ upper limb land
What are the 2 bones in the pectoral girdle?
clavicle/ scapula
What is another word for scapula?
shoulder blade
What is another word for clavicle?
collarbone
What are the scapulo-humeral (intrinsic shoulder) muscles?
suprapsinatus
infraspinatus
teres minor
subscapularis
deltoid
teres major
What are the posterior axio-appendicular muscles? (thoraco-appendicular)?
superficial- trapezius/ latissimus dorsi
deep- levator scapulae/ rhomboid minor + major
What are the 4 muscles in rotator cuff?
supraspinatus
infraspinatus
teres minor
subscapularis
What is an the incomplete bony ring that functions for attachment/ support of upper limb?
pectoral girdle
What is the T-shaped bone medial chest?
sternum
What is the top part of the sternum?
manubrium
What is the large bone in the arm?
humerus
What does pectoral girdle look like?
horseshoe
What is the top edge/ bony structure on scapula?
acromion
What is the prominent ridge of bone on the posterior surface of scapula?
spine of scapula
What muscle originates from horseshoe?
deltoid
What muscle inserts in horseshoe?
trapezius
What is the broad area on the anterior side of scapula?
subscapular fossa
What is situated on the lateral part of the superior border of the scapula? next to coracoid process of scapula
suprascapular notch
What is the small hook-like structure on lateral edge of the superior anterior portion of the scapula?
coracoid process of scapula
What does the spine of scapula flatten out laterally into?
acromion
What is the broad area on inferior posterior side of scapula?
infraspinous fossa
What is the broad area on superior posterior side of scapula?
supraspinous fossa
What part of the scapula articulates with the head of the humerus?
glenoid cavity
What passes through the suprascapular notch/ by the suprascapular ligament?
suprascapular nerve/ artery
What is located between the greater/ lesser tubercles of the proximal humerus?
intertubercular groove
What is the midway rounded prominent structure distally down humerus? (not elbow)
deltoid tubersosity
What are the bony projections of proximal humerus?
greater/ lesser tubercles (bigger/ smaller)
Where does the trapezius originate?
base of skull
nuchal ligament
spinous processes C7-T12
Where does trapezius insert?
lateral 1/3 of clavicle
acromion
spine of scapula
What muscle is responsible for elevation/ retraction/ depression of scapula?
trapezius
What happens to the glenoid cavity when trapezius rotates scapula?
goes up