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Emily Taylor
Chapter 15 axial muscles
| Term | Definition |
|---|---|
| What are the main functions of the axial muscles? | Support and movement of head, neck, vertebral column; assist in respiration, facial expression, and abdominal compression. |
| Name the muscle that closes the eyelid. | Orbicularis oculi |
| Which muscle is the main chewing muscle? | Masseter |
| What does the sternocleidomastoid muscle do? | Rotates and flexes the head. |
| Name the three muscles in the erector spinae group. | Spinalis, Longissimus, Iliocostalis. |
| What is the primary muscle used in breathing? | Diaphragm |
| Which muscle group compresses the abdominal contents? | Transversus abdominis. |
| What is the function of the levator ani? | Supports pelvic organs and maintains continence. |
| Name the facial muscles used in facial expression. | Frontalis, Orbicularis oculi, Zygomaticus major, Orbicularis oris |
| What are the muscles of the vertebral column? | Spinalis, Longissimus, Iliocostalis |
| Synergists | Muscles that work together |
| Antagonists | Muscles that oppose each other |
| Fixators | Stabilize the orgin of the prime mover. |