Lab 4 Flashcards
appendicular skeleton upper appendage
clavicle, scapula, humerus, radius, ulna, carpals, metacarpals, phalanges
sternoclavicular joint
sternal end of the clavicle and sternum, single joint between the axial skeleton and the upper limb
sternoclavicular joint type
saddle joint
acromioclavicular joint
acromial end of the clavicle and acromion of scapula
acromioclavicular joint type
fixed joint
coracoid process
scapula; attachment for the biceps brachii as well as other muscles of the shoulder
acromion
scapula; joins the scapula to the clavicle
spine of the scapula
a ridge that separates the posterior surface into supraspinous fossa and infraspinous fossa
subscapular fossa
the entire concave anterior surface faces the ribs
glenoid cavity
connection to the head of the humerus in this shallow cavity of the scapula
motions of the scapula
protraction, retraction, elevation, depression
protraction of scapula
reaching for something in front of you, results in scapula moving laterally
retraction of scapula
when you pull your scapula toward the center of your back (row), scapula moves medially
elevation of scapula
occurs when shrugging the shoulders, scapula moves superiorly
depression of scapula
inferior movment of scapula
tubercles of the humerus
greater and less tubercle
intertubercular groove
canal between the greater and less tubercle of the humerus
anatomical neck of humerus
at the epiphyseal plate that separates the head of the humerus from its diaphysis
surgical neck of humerus
inferior to anatomical neck, more commonly fractured
glenohumeral joint
glenoid cavity of scapula and humerus
glenohumeral joint type
ball and socket joint
flexion
making space smaller
extension
making space larger
adduction
moving toward the body
abduction
moving away from the body
trochlea
medial, articulate with ulna
capitulum
lateral, articulates with radius
olecranon fossa
posterior surface of humerus, allows for the full extension of the elbow joint