Shoulder and Arm: Bones and Muscles Flashcards
What are the main shoulder and arm bones/
Stermun, clavicle, scapula, humerus
T/F- Clavicle contains bone marrow
True
Medial part of clavicle is anteriorly ____ and lateral part is ______
A) convex, concave
B) concave, convex
C) flat, narrow
D) narrow, flat
A) convex, concave
T/F- Clavicle has a medullar cavity
False- it doesnt
T/F- Clavicle is a long bone
True
Where is the common location of a clavicle fracture?
Midshaft
Where does the sternal and acromion end of clavicle attach to?
Sternal- manubrum of sternum
Acromial- acromion process
Inferior glenoid tubercle is where the ______ attach
triceps long head
Capitulum is where the _____ attaches and trochlea is where _____ attaches
A) ulna, radius
B) radius, ulna
C) carpal, metacarpal
D) metacarpal, carpal
B) Capitulum- radius; Trochlea- ulna
Humerus bone undergoes ______ ossificationj
Endochondral
What are the most potential fracture sites of humerus? What can be damaged when u fracture each of these sites?
Surgical neck (humeral circumflex artery) midshaft (radial nerve along with deep brachial artery), supracondylar region (median nerve and brachial artery) medial epicondyle (ulnar nerve)
What are the superficial back muscles?
Trapezius and lattisimus dorsi
Where does the trapezius insert?
Spine of scapula
what are the borders of the triangle of auscultation
lattisimus dorsi, trapezius, medial border of scapula
T/F-nerve supply of rhomboids comes from brachial plexsus
True