Atlas (C1) vs Gluteus maximus
| Property | Atlas (C1) | Gluteus maximus |
|---|---|---|
| Latin Name | Atlas | Musculus gluteus maximus |
| Type | Bone | Muscle |
| Body System | Skeletal | Muscular |
| Body Region | Spine | Hip |
| Function | The first cervical vertebra that supports the skull. Allows nodding movements (flexion and extension) of the head at the atlanto-occipital joint. | The largest and most powerful muscle in the body. Primary extensor and lateral rotator of the hip. Essential for standing from a seated position, climbing stairs, running, and maintaining upright … |
| Clinical Significance | Jefferson fractures (burst fractures of the atlas) result from axial loading. Atlanto-occipital dislocation is usually fatal. Congenital anomalies include atlas assimilation (occipitalization). | Gluteus maximus weakness (Trendelenburg gait) results from inferior gluteal nerve injury. Gluteal muscle atrophy occurs with prolonged immobility. The muscle is used in myocutaneous flap surgery for pressure ulcer coverage. |
| FMA ID | 12519 | 22314 |
Full structure pages
Atlas (C1)
Atlas
Ring-shaped and unusual in lacking both a vertebral body and a spinous process, the atlas is the first cervical vertebra and supports the skull. Its structure consists of anterior and posterior arches joined by two …
Gluteus maximus
Musculus gluteus maximus
The largest and most powerful muscle in the body, the gluteus maximus forms the prominence of the buttock and serves as the primary extensor and lateral rotator of the hip. It is essential to rising …