Question | Answer |
Orbicularis Oculi | closes eye |
masseter | elevates mandible |
temporalis | elevates mandible |
digastric | depresses mandible and elevates hyoid during swallowing |
sternocleidomastoid | flexes neck and rotates head |
omohyoid | depresses hyoid after swallowing |
sternohyoid | depresses hyoid after swalling |
external oblique | compresses abdomen, flexes and rotates trunk |
internal oblique | compresses abdomen, flexes and rotates trunk |
transversus abdominis | compresses abdomen |
rectus abdominis | compresses abdomen, flexes trunk |
diaphragm | flattens downward to expand thoracic cavity for inspiration |
external intercostals | pull ribs out and up to expand thoracic cavity for inspiration |
internal intercostals | draw ribs together and in to decrease thoracic cavity for expiration |
pectoralis minor | depresses and moves scapula anteriorly |
serratus anterior | rotates scapula to point glenoid cavity upward |
trapezius | elevates clavicle and scapula, adducts scapula, or depress scapula |
levator scapulae | elevates scapula |
rhomboid major | adducts scapula |
rhomboid minor | adducts scapula |
pectoralis major | flexion and adduction at shoulder |
latissimus dorsi | extension and adduction at shoulder |
deltoid | abduction at shoulder |
supraspinatus | abduction at shoulder |
infraspinatus | lateral rotation at shoulder |
teres minor | lateral rotation at shoulder |
teres major | medial rotation at shoulder |
subscapularis | medial rotation at shoulder |
triceps brachii | extension at elbow |
biceps brachii | flexion at elbow |
brachialis | flexion at elbow |
brachioradialis | flexion at elbow |
pronator teres | pronates forearm |
supinator | supinates forearm |
flexor carpi radialis | flexion and abduction at wrist |
palmaris longus | flexion at wrist |
flexor carpi ulnaris | flexion and adduction at wrist |
extensor carpi radialis longus | extension and abduction at wrist |
extensor carpi radialis brevis | extension and abduction at wrist |
extensor digitorum | extension at finger joints and wrist |
extensor carpi ulnaris | extension and adduction at wrist |
psoas major | flexion at hip |
iliacus | flexion at hip |
gluteus maximus | extension at hip |
gluteus medius | abduction at hip |
tensor fasciae latae | tenses iliotibial tract to support the knee joint |
adductor longus | adduction at hip |
adductor magnus | adduction at hip |
gracilis | adduction at hip |
sartorius | flexion and lateral rotation at hip, flexion at knee = ("crossing leg") |
rectus femoris | flexion at hip, extension at knee |
vastus lateralis | extension at knee |
vastus medialus | extension at knee |
vastus intermedius | extension at knee |
biceps femoris | extension at hip, flexion at knee |
semimebranosus | extension at hip, flexion at knee |
semitendinosus | extension at hip, flexion at knee |
gastrocnemius | plantar flexion at ankle |
soleus | plantar flexion at ankle |
tibialis anterior | dorsiflexion at ankle |