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Muscles antomy
names of the muscles and classifications
Question | Answer |
---|---|
Trapezius | moves the scapula and extends the head |
Latissimus dorsi | pulls arms down forcefully |
Gluteus Maximus | Extends and rotates the thigh |
Gracilis | Adducts and rotates the thigh |
Rectus femoris | Flexes the hip and extends the leg at the knee |
Biceps femoris | Flexes leg at the knee and extends the thigh |
semitendonosus | Flexes leg at the knee and extends the thigh |
frontalis | moves the forehead and eyebrows |
zygomaticus major | used for smiling |
orbicularis oris | used for kissing |
occipitalis | draws the scalp backwards |
sternocleidomastoid | turns the head to the side or to the chest |
Deltoid | abducts,roatates,and extends the arm |
pectoralis major | adducts and rotates the arm |
external obliques | beds the vertebral column laterally |
Rectus abdominum | Flexes vertebral column and the ab's |
linea alba | white fibrous band covering the abdomen |
Triceps brachii | flexes arm |
Biceps brachii | flexes arm |
Extensor digitorum | extends the hand and fingers |
Brachioradialis | flexes the forearm |
Sartorius | flexes the knee; crosses the legs |
Adductor longus | adducts the leg |
Quadriceps femoris | extends leg at the knee |
Gastrocnemius | Plantar flexes the foor |
Soleus | plantar flexes the foot |
Achilles tendon | attaches gastrocnemius to calcaneus |
Extensor digitorum longus | dorsiflexes and everts foot |
Tibialis anterior | Dorsiflexes and inverts the foot |
Cardiac Muscles | found in the heart, striated and involuntary |
Smooth Muscles | found in many internal organs and blood vessels, involuntary is not striated |
Skeletal Muscles | found on the skeletal system are voluntary and are striated |
Synergists | work together |
Antagonist | do opposite actions |
Fixators | stabalize the origin of the prime mover |
How are muscles named? | Direction,Size,Shape,Action,Number of origins,and Location |