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Muscle Fuctions
Anatomical Names of Muscles and Their Functions
| Question | Answer |
|---|---|
| Frontalis | Wrinkles forehead and elevates eyebrow |
| Corrugator supercilii | Draws eyebrow to midline |
| Orbicularis oculi | Closes eye |
| Orbicularis oris | Closes mouth |
| Buccinator | Compresses cheek |
| Zygomaticus | Elevates corner of mouth |
| Risorius | Draws corner of mouth laterally |
| Mentalis | Protrudes lower lip |
| Platysma | Depresses mandible and lower lip |
| Massetar | Elevates mandible |
| Temporalis | Elevates mandible |
| Sternocleidomastoid | Rotates head, flexes neck |
| Trapezius | Extends neck, moves scapula |
| Digastric | Opens mouth, elevates hyoid |
| Mylohyoid | Elevates hyoid and floor of mouth |
| Geniohyoid | Elevates hyoid and protracts tongue |
| Stylohyoid | Elevates retracts tongue |
| Sternohyoid | Depresses hyoid |
| Sternothyroid | Depresses thyroid cartilage |
| Thyrohyoid | Depresses hyoid bone, elevates larynx |
| External intercostals | Elevates ribs (inspiration) |
| Internal intercostals | Depresses ribs (expiration) |
| Rectus abdominis | Flexes vertebral column, compresses abdomen |
| External oblique | Compresses abdomen, lateral trunk rotation |
| Internal oblique | Compresses abdomen, lateral trunk rotation |
| Transversus abdominis | Compresses abdomen, lateral trunk rotation |
| Serratus anterior | Pull scapula forward and down |
| Levator scapulae | Elevates scapula |
| Rhomboideus major & minor | Adducts scapula |
| Pectoralis major | Flexes, adducts, and rotates arm medially |
| Pectoralis minor | Depresses and protracts scapula |
| Deltoid | Abducts arm |
| Latissimus dorsi | Extends, adducts, and rotates arm medially |
| Teres major | Extends, adducts, and rotates arm medially |
| Teres minor | Rotates arm laterally |
| Biceps brachii | Flexes forearm |
| Brachialis | Flexes forearm |
| Brachioradialis | Flexes forearm |
| Pronator teres | Pronates forearm |
| Supinator | Supinates forearm |
| Triceps brachii | Extends forearm |
| Flexor carpi radialis | Flexes and abducts hand |
| Flexor carpi ulnaris | Flexes and adducts hand |
| Palmaris longus | Flexes hand and digits |
| Extensor carpi radialis longus | Extends and abducts hand |
| Extensor carpi ulnaris | Extends and adducts hand |
| Extensor digitorum | Extends hand and digits |
| Gluteus maximus | Extends and rotates thigh laterally |
| Gluteus medius | Abducts and rotates thigh medially |
| Gluteus minimus | Abducts and rotates thigh medially |
| Tensor fasciae latae | Abducts and rotates thigh medially |
| Adductor longus | Flexes, adducts, and rotates thigh medially |
| Adductor brevis | Flexes, adducts, and rotates thigh |
| Adductor magnus | Flexes, adducts, and rotates thigh |
| Gracilis | Flexes leg, adducts thigh |
| Sartorius | Flexes leg and thigh, abducts and rotates thigh laterally |
| Biceps femoris | Flexes leg, extends and laterally rotates thigh |
| Semimembranosus | Flexes leg, extends and medially rotates thigh |
| Semitendinosus | Flexes leg, extends and medially rotates thigh |
| Rectus femoris | Extends leg and flexes high |
| Vastus medialis | Extends leg |
| Vastus lateralis | Extends leg |
| Vastus intermedius | Extends leg |
| Gastrocnemius | Plantar flexes foot, flexes leg |
| Soleus | Plantar flexes foot |
| Peroneus longus | Plantar flexes and everts foot |
| Peroneus brevis | Plantar flexes and everts foot |
| Peroneus tertius | Dorsiflexes and everts foot |
| Tibialis anterior | Dorsiflexes and inverts foot |
| Flexor digitorum longus | Flexes toes |
| Extensor digitorum longus | Extends toes |
Created by:
scar29
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