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muscles
muscles functions,
| Question | Answer |
|---|---|
| Supports abdominal viscera against cavity; stabilizes vertebral column during heavy lifting. Maintains posture | External Abdominal Oblique |
| Deep to the external intercostals | Internal Intercostals |
| Superficial to the internal intercostals | External intercostals |
| Dome shaped muscle that separates thoracic and abdominal cavities | Diaphragm |
| Inferior to the hyoid; function to depress the hyoid bone and larynx during swallowing and speech | Infrahyoid Muscles |
| Muscles superior to the hyoid; run from hyoid to the mandible; form the floor of the mouth, help open jaw and move hyoid bone. | Suprahyoid Muscles |
| Draws lower lip and angle of mouth downward in expressions of horror or surprise | Platysma |
| Compresses cheek against cheek and gums, directs food between molars, retracts cheeks from teeth when mouth is closing. | Buccinator |
| Elevates and protrudes lower lip in drinking, pouting, wrinkles skin of chin | Mentalis |
| Draws angle of mouth laterally and downward | Depressor Anguli Oris |
| Elevates upper lip, exposes upper teeth in smiling or sneering | Zygomaticus Minor |
| Draws angle of mouth upward and laterally in laughing, smiling | Zygomaticus Major |
| Opens lips, elevates upper lip in sneering | Levator Labii Superioris |
| Closes lips, puckers lips in kissing, developed in humans for speech | Orbicularis Oris |
| Widens nostrils | Nasalis |
| Draws eyebrows medially and downward in frowning and concentration | Corrugator Suppercilii |
| Closes eyelids | Orbicularis Oculi |
| Elevates eyebrows, wrinkles forehead | Frontalis |
| Tendons of the following muscles unite to form the calcaneal (Achilles) Tendon. This is the strongest tendon in the body. | Gastrocnemius Soleus |
| The muscles of the leg are formed from a group of crural muscles tightly bound by fasciae that compresses them. Return blood from the legs to the heart. Muscles acting on the foot | Extensor Digitorum Longus Tibialis Anterior |
| Anterior Neck | Suprahyoid Infrahyoid |
| Posterior Neck | Trapezius Sternocleidmastoid |
| Their tendons can be felt as prominent cords on both sides of the popliteal fossa | (Hamstring Muscles) Bicep Femoris Semitendinosus Semimembranous |
| Longest muscle in the body | Sartorius |
| Most powerful muscle in the body | (Qudriceps Femoris) rectus femoris vastus lateralis vastus medialis vastus intermedius |
| Muscles acting on the thigh | lliopsoas sartorius gluteus maximus gracilis gluteus medius adductors |
| The extensor group (posterior) | Extensor carpi radialis longus extensor carpi ulnaris extensor digitorum |
| The flexor group (anterior) | Flexor carpi radialis flexor carpi ulnaris palmaris longus |
| Muscles that move the forearms | Brachialis Biceps brachii Brachioradialis Triceps Brachii |
| Reinforces the joint capsule and holds the head of the humorus in the gleaned cavity "SITS" | Rotator Cuff |
| Muscles that move the arm | Pectorals Major Deltoid Latissimus dosi Supraspinatus and teres minor teres major |
| Muscles that move the scapula | Serratus anterior trapezius rhomboideus minor rhomboidues major |
| Erector Spinae | run vertically for the entire length of the back from the cranium to the sacrum |
| Transverse abdominal | compresses abdominal contents |
| Internal abdominal oblique | Same as external abdominal oblique |
Created by:
cdixon10
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