Ramus
Ramus refers to a part of a bone that forms an angle with the rest, especially the ascending part of the lower jaw that makes a joint at the temple. It can also refer to a branch, such as a branch of a blood vessel or nerve.
Anatomy[edit | edit source]
In anatomy, the term "ramus" denotes a part of a bone that forms an angle with the rest of the structure. It is used in several contexts:
- Ramus of mandible: The vertical part of the lower jaw that projects upward to meet the temporal bone at the temporomandibular joint.
- Ramus of pubis: The part of the pubic bone that extends backward from the body of the pubis and meets the ilium and ischium to form part of the acetabulum.
- Superior pubic ramus: The superior extension of the pubic bone that forms a portion of the obturator foramen.
- Inferior pubic ramus: The inferior extension of the pubic bone that forms a portion of the obturator foramen.
Neurology[edit | edit source]
In neurology, "ramus" refers to a branch of a nerve or blood vessel. For example:
- Ramus communicans: A nerve branch that connects two primary nerve trunks.
- Posterior ramus of spinal nerve: The smaller branch of a spinal nerve that serves the deep muscles and skin of the back.
- Anterior ramus of spinal nerve: The larger branch of a spinal nerve that serves the anterior and lateral muscles and the skin of the body.
See also[edit | edit source]
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