5 joints Flashcards
What are the 3 main types of joints?
fibrous
cartilaginous
synovial
name 3 kinds of fibrous joints
skull sutures
syndesmoses
gomphosis
Name 2 kinds of cartilaginous joints
primary - hyaline cartilage (normally a temporary joint during bone growth)
secondary - fibrous capsule, articular surface coated by hyaline cartilage
name 6 common features of synovial joints
bone ends have articular cartilage capsule joint cavity inner surface of capsule lined with synovial membrane ligaments wide range of movements
name 3 ligaments in the shoulder
acromioclavicular
coracoacromial
coracoclavicular
What is the pec major innervated by?
lateral and medial pectoral nerves
Why is the deltoid innervated by?
axillary nerve
What is the trapezius innervated by?
accessory nerve
latissimus dorsi innervation?
thoracodorsal nerve
Which 4 muscles make up the rotator cuff of the shoulder?
subscapularis
supraspinatus
infraspinatus
teres minor
What are the articulations between the radius and humerus, and ulna and humerus?
trochlea - coronoid process
capitulum - radial head
which nerve is often damaged in shoulder dislocations?
axillary nerve
What elbow ligaments are there?
medial ligament holds ulna
lateral and annular ligaments hold radius
What muscles extend the elbow?
triceps brachii - arising from 3 heads
assissted by anconeus (forearm)
What muscles flex the elbow?
biceps brachii
brachialis
(also brachioradialis in forearm)
