The spelling of the word "vertebra magna" may seem daunting, but it can be broken down into its individual syllables. The first word, "vertebra," is pronounced as "vur-tuh-bruh" with the stress on the second syllable. The second word, "magna," is pronounced as "mag-nuh" with the stress on the first syllable. When these two words are combined, the stress remains on the second syllable of "vertebra," making the full pronunciation "vur-tuh-bruh mag-nuh." This term refers to a large vertebra in the spine.
Vertebra magna, also known as C1 or the atlas, is a term used in anatomy to refer to the first cervical vertebra in mammals, including humans. It is an integral component of the vertebral column, situated at the topmost position of the spine, just underneath the skull. It serves as the primary support for the cranium and facilitates the articulation between the skull and the vertebral column.
The vertebra magna possesses distinct anatomical characteristics that differentiate it from other vertebrae in the spinal column. It lacks a body and possesses a ring-like structure, featuring an anterior arch and a posterior arch connected by two lateral masses. The anterior arch supports the skull, while the posterior arch forms the spinal canal through which the spinal cord passes.
This vertebra's specialized structure allows for the unique movement and articulation required for the anatomical connections between the skull and the spinal column. It provides essential support and stability to the head, allowing for various head movements like flexion, extension, and lateral rotation.
Furthermore, the vertebra magna serves as an attachment site for vital ligaments and muscles involved in maintaining the stability and flexibility of the head and neck. Ligaments such as the transverse and alar ligaments contribute to the stability of the skull, while muscles like the sternocleidomastoid and scalene muscles are responsible for head and neck movements.
Overall, the vertebra magna plays a crucial role in the structural integrity and functionality of the head and neck, facilitating vital movements and providing essential support for the skull.
Sacrum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "vertebra" comes from Latin, where it means "joint" or "knuckle". It is derived from the Latin verb "vertere", meaning "to turn".
The word "magna" also comes from Latin, meaning "great" or "large". It is the feminine form of the adjective "magnus".
When combined, "vertebra magna" literally translates to "great joint" or "large knuckle" in Latin. It is commonly used in medical terminology to refer to a particular type of spinal abnormality or bone deformity.