topic 7 and 8 Flashcards
upper arm
brachium
lower arm or forearm
antebrachium
upper limb consist of what bones
humerus, ulna, radius, carpal bones, metacarpal bones, and phalanges
what is the single bone of the upper arm or brachium
the humerus
what are the 2 bones of the antebrachium
ulna and radius
explain the positions of the ulna and radius in anatomical position
radius is lateral side and ulna medial side
explain the appedicular skeleton
includes all of the limb bones, plus the bones that unite each limb with the axial skeleton
the scapula and clavicle makes up the
pectoral girdle
what is the pectoral girdle
the bones that each upper limb to the axial skeleton form the girdle
what is the end of the clavicle that is thicker
the sternal end
what is the sternal end
forms a very stable joint with the manubrium of the sternum (sternoclavicular joint)
what is the flat end of a clavicle
acromial end
what is the acromial end
forms a joint with the acromion of the scapula (acromioclavicular joint).
which end of the clavicle is less stable
the acromial end
clavicle landmarks
sternal end, acromial end, shaft, conoid tubercle, subclavian groove
what attaches and what does the conoid tubercle do
the conoid ligament attaches here. It is one of the 2 ligaments that make up the coracoclavicular ligaments. It helps stabilize the scapula to the clavicle
explain the subclavian groove
an indent that runs along the underside (inferior aspect) of the clavicle, this is where the muscle subclavius attaches
scapula landmarks
medial (vertebral) border, lateral (axillary) border, superior border, superior angle, inferior angle, spine of the scapula
fossa of the scapula
supraspinous fossa, infraspinous fossa, subscapular fossa, glenoid fossa/cavity, suprascapular notch
processes of the scapula
coracoid process, acromion process
tubercles of the scapula
supraglenoid tubercle, infraglenoid tubercle
muscle that orginates in the fossas of the scapula
supraspinous fossa - supraspinatus
infraspinous fossa - infraspinatus
subscapular fossa - subscapularis
what attaches at the coracoid process
“PBC” pectoralis minor
short head of the BICEPS brachii
coracobrachialis
what attaches at the acromion process
attachment sites for the deltoid and trapezius muscles
explain the glenoid fossa/cavity
depression that forms scapular portion of the glenohumeral joint or shoulder joint
this joint is least stable joint in the body and dislocations are common
what attaches at supraglenoid tubercle and infraglenoid tubercle
long head of biceps brachii attach at supra and long head ofm triceps brachii atttach
what runs through the suprascapular notch
the suprascapular nerve
a projection or outgrowth of bone
process
a depression in the bone
fossa
small, roundish outgrowths of bone
tubercle
larger than tubercles, less round and more varied in shape
tuberosity
indentation or divot in the bone
notch
