What is a Ramus on a bone?
What is a Ramus on a bone?
Ramus – The curved part of a bone that gives structural support to the rest of the bone. Examples include the superior/inferior pubic ramus and ramus of the mandible.
What does mandibular Rami mean?
A mandibular ramus is a quadrilateral process projecting upward and backward from the posterior part of the body of the mandible and ending on the other side at the temporomandibular joint in a saddle-like indentation (called the sigmoid notch) between the coronoid and condylar processes.
What is the function of the Ramus?
Two vertical portions (rami) form movable hinge joints on either side of the head, articulating with the glenoid cavity of the temporal bone of the skull. The rami also provide attachment for muscles important in chewing.
Does Ramus mean root?
ramus (n.) in anatomy, “a branch or branching part,” 1803, from Latin ramus “a branch, bough, twig,” from earlier *radmo- and cognate with radix “root,” from PIE root *wrād- “branch, root.” This is the old reconstruction, which de Vaan, after some hesitation, finds justified.
What are anterior Rami?
One of the primary branches of a spinal nerve that supplies the lateral and ventral portions of the body wall, limbs, and perineum.
What bone of these has a body and two Rami?
The mandible is made up of the following parts: the body and two rami. The body is the anterior portion of the mandible and is bound by two surfaces and two borders. The body ends and the rami begin on either side at the angle of the mandible, also known as the gonial angle.
What is ventral and dorsal Rami?
The dorsal and ventral rami contain nerves that provide visceral motor, somatic motor, and sensory information, with the dorsal ramus feeding the dorsal trunk (skin and muscles of the back), and the ventral ramus feeding the ventral trunk and limbs through the ventrolateral surface.
What is Ramus in spinal nerve?
The dorsal ramus (Latin for branch, plural rami ) is the dorsal branch of a spinal nerve that forms from the dorsal root of the nerve after it emerges from the spinal cord. The spinal nerve is formed from the dorsal and ventral rami.
What is the difference between spinal nerve roots and spinal Rami?
Roots divide into: Dorsal (posterior), which carries sensory fibers. Ventral (anterior), which carries motor fibers. Rami – originate from mixed spinal nerve, so they carry motor and sensory fibers.
What is the superior pubic Rami?
The superior pubic ramus is the upper of the two rami. It forms the upper edge of the obturator foramen. It extends from the body to the median plane where it joins with the ramus of the opposite side. It consists of an inner flattened part and a narrow outer prismoid portion.
What is the meaning of Rami?
[rā′məs] pl. a small branchlike structure extending from a larger one or dividing into two or more parts, such as a branch of a nerve or artery or one of the rami of the blood vessel or nerve.
What is the plural of the medical term ramus?
[L.] plural of ramus. rami communicantes. bundles of nerve fibers connecting a sympathetic ganglion to spinal nerve; categorized as gray rami (unmyelinated postganglionic fibers) or white rami (myelinated preganglionic fibers).
What are the risk factors for a fractured Rami?
Other common risk factors for suffering a fractured pubic rami may include: Excessive or repetitive kicking during sports such as football, rugby and martial arts. Performing excessive weight bearing activities during pregnancy. Weaknesses in gluteals, pelvic or core stabilisers.
What is an ischiopubic ramus?
inferior extension from body of pubic bone that meets with the ramus of the ischium to form the ischiopubic ramus.