Origin and Insertion Flashcards
Sternocleidomastoid
O: sternum and clavicle
I: temporal bone (mastoid process)
F: flexes head from side-to-side and rotates it
Rectus abdominus
O: pubis crest
I: xiphoid process and inferior ribs
F: flexes the trunk
supraspinatus
O: posterior of scapula
I: greater tubercle of humerus
F: abducts shoulder and stabilizes the shoulder joint
pectoralis
O: clavicle, sternum, ribs
I: humerus (intertubuler groove)
F: internal rotation, adduction and flexion of arm
brachioradialis
O: medial condyle of humerus
I: styloid process of radius
F: flexes elbow
Rhomboid (major and minor)
O: cervical and thoracic vertebrae
I: scapula
F: helps with retracting and rotating the scapula
Rectus femoris
O: ilium
I: tibia tuberosity
F: flexes the hip
Tibialis anterior
O: tibia
I: metatarsals
F: dorsiflexion of foot
Soleus
O: fibula
I: calcaneus
F: helps us stand
Splenius
O: cervical and thoracic vertebrae
I: temporal and occipital bone and cervical vertebrae
F: rotates neck and head
Longisissmus
O: lumbar, cervical and thoracic vertebrae
I: temporal bone (mastoid process)
F: extends laterally and flexes spine and head
Biceps brachii
O: scapula
I: radius
F: flexes elbow and rotates arm
Triceps brachii
O: scapula and humerus
I: ulna
F: extension of elbow
Latisimuss dorsi
O: iliac crest, sacrum and thoracic vertebrae
I: humerus
F: extends elbow and rotates shoulder
supinator (top of radius)
O: lateral epicondyle of humerus
I: radius
F: supinates forearm
