Torso
What is the action of the transversalis (aka transverse abdominis)?
Pulls abdominal wall back into visceral cavity (cinches the waist)
Which muscle's primary action is to elevate the scapula?
Levator scapulae
Name two muscles that perform shoulder extension.
Posterior deltoid
Latissimus dorsi
Teres major
Teres minor
Infraspinatus
Triceps brachii
Which muscle performs elbow extension?
Triceps brachii
What is the action of the erector spinae muscles? (Name at least 2)
Extension, lateral flexion, and rotation of ALL THREE regions of the spine
Name two muscles that act to adduct the scapula.
Rhomboids
Upper, middle, and lower trapezius
Which two shoulder muscles work together to perform shoulder abduction?
Supraspinatus and middle deltoid
What is the action of the flexor carpi ulnaris?
flexion and ulnar deviation of the wrist
Name the origin and insertion of the rectus abdominis.
Proximal Attachment/Origin: Pubic crest
Distal Attachment/Insertion: Xiphoid process of sternum and costal cartilage
What is the action of the two spleni (splenius cervicus and splenius capitus)? Name at least two.
Cervical extension, lateral flexion on one side, and rotation to the same side
Which muscle is sometimes called the "lat's little helper" and performs the same actions as the lattisimus dorsi.
Teres major
Name two muscles that perform elbow flexion.
Biceps brachii
Brachioradialis
Brachialis
Pronator teres
Flexor carpi radialis
Right internal oblique
Left external oblique
Name 2 muscles that work to tilt the head to the right (aka right lateral flexion). Be specific if it is the right or the left muscle.
Right sternocleidomastoid
Right spleni (splenius cervicus and splenius capitus)
Three scaleni acting together
Name the four muscles of the rotator cuff.
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Name two muscles that perform wrist extension.
Extensor carpi ulnaris
Extensor carpi radialis longus and brevis
Extensor digitorum
Extensor indicis
Extensor digiti minimi
Name two muscles that contract eccentrically to control the motion of the torso when reaching down to pick an object up off of the ground.
Erector spinae
Multifidis
Semispinalis
Two spleni (splenius cervicus and splenius capitus)
Name the origin and insertion of the strenocleidomastoid.
Proximal Attachment/Origin: Medial clavicle and sternum (two heads)
Distal Attachment/Insertion: Mastoid process of temporal bone
Name three muscles that are activated in order to perform a push-up and the actions of these muscles. (these can be muscles of the shoulder, scapula, or elbow)
Pectoralis major (Shoulder flexion, adduction, and inward rotation)
Latissimus dorsi (adduction, and inward rotation)
Anterior deltoid (shoulder flexion)
Teres major (inward rotation)
Subscapularis (internal rotation)
Serratus anterior (Scapular abduction and upward rotation)
Triceps brachii (elbow extension)
Name two muscles that work when wrapping your hand around an object.
Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollicis longus