| A | B |
|---|
| Origin | Attached to the immovable or less movable bone |
| Insertion | This is the point attched to the movable bone |
| Body | Fleshy part of the muscle |
| Tendon | Anchors muscle to bone |
| Prime mover | The muscle that has the major responsibility for causing a particular movment |
| Antagonist | Muscle that opposes or reverses a movement |
| Synergist | The helper muscles |
| Fixators | Specialized synergists |
| Frontalis | Moves the eyebrows and eyelids |
| Orbicularis oculi | Runs in circles around the eyes |
| Orbicularis oris | The kissing muscle |
| Buccinator | Compresses the cheek |
| Zygomaticus | The smiling muscle |
| Masseter | Closes the jaw by elevating the mandible |
| Temporalis | Acts as a synergist of the masseter in closing the jaw |
| Platysma | Pulls the corners of the mouth inferiorly, depresses the mandible |
| Sternocleidomastoid | Flexes and extend the neck |
| Pectoralis major | Adducts and flexes the humerus |
| Intercostal muscles | Elevate and depress the ribs |
| Rectus abdominis | Flexes the vertebral column, compresses the abdomen |
| External and internal obliques | Flexes and rotates the vertebral column, bend the trunk laterally |
| Transversus abdominis | Compresses the abdominal contents, deepest of the abdominal wall |
| Trapezius | Extends the neck, adducts the humerus, stabilizes the scapula |
| Latissiumus dorsi | Superficial muscle, extends and adducts the humerus |
| Erectors spinae | Found under the lats, extends the back |
| Deltoid | Superficial muscle of the shoulder that abducts the humerus |
| Flexor carpi | Flexes the writst |
| Flexor digitorum | Found on the anterior aspect of the forearm |
| Extensor carpi | Found on the lateral aspect of the forearm |
| Extensor digitorum muscles | Found on the posterior aspect of the forearm |
| Biceps brachii | Flexes the elbow and supinates the forearm |
| Triceps brachii | Extends the elbow, delivers a punch |
| Gluteus maximus | Superficial muscles of the hip that forms the buttocks |
| Gluteus medius | Abducts the thigh, helps steady the pelvis during walking |
| Iliopsoas | Helps keep the upper body from falling backward when standing erect |
| Adductors | Adducts the thigh |
| Sartorius | Flexes the thigh |
| Rectus femoris | Flexes the hip, crosses the hip and knee joints |
| Hamstrings | Found on the posterior thigh |
| Tibialis anterior | Dorsiflexes and inverts the foot |
| Fibularis (Peroneus) muscles | Plantar flex and evert the foot |
| Gastrocnemius | Plantar flexes the foot and flexes the knee |
| Soleus | Does the majority of plantar flexion of the foot, found deep to the Gastrocnemius |
