Sinus Rectus (Noun)
Meaning
An unpaired sinus of the dura mater.
Classification
Nouns denoting body parts.
Examples
- The sinus rectus is located in the midline of the posterior cranial fossa and is unique in that it does not have a corresponding sinus on the opposite side of the brain.
- The dura mater encloses a venous channel, the sinus rectus, which receives blood from the superior sagittal sinus and drains it into the confluence of the sinuses.
- Between the left and right transverse sinuses is the confluence of sinuses, which also includes the sinus rectus in its structure.
- From the posterior aspect of the sinus rectus, small dural sinuses extend to the margins of the foramen magnum and communicate with the vertebral veins.
- Anatomically, the sinus rectus is located near the posterior part of the corpus callosum, surrounded by the falx cerebri, a fold of dura mater.