Examples of foramina in the following topics:
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- The human skull has numerous holes known as foramina through which cranial nerves, arteries, veins, and other structures pass.
- Foramina inside the body of humans and other animals typically allow muscles,
nerves, arteries, veins, or other structures to connect one part of the body
with another.
- The human skull has numerous foramina
through which cranial nerves, arteries, veins, and other structures pass.
- The
skull bones that contain foramina include the frontal, ethmoid, sphenoid,
maxilla, palatine, temporal, and occipital lobes.
- Foramina of cribriform plate: Located in
the ethmoid bone, it allows the passage of the olfactory nerve.
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- CSF flows from the lateral ventricles via the foramina of
Monro into the third ventricle, and then into the fourth ventricle via the cerebral
aqueduct in the brainstem.
- From there, it passes into the central canal of the
spinal cord and into the cisterns of the subarachnoid space via three small
foramina: the central foramen of Magendie and the two lateral foramina of
Luschka.
- The aqueduct between the third and fourth ventricles
is very small, as are the foramina.
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- One or two main diaphyseal nutrient arteries enter the shaft obliquely through one or two nutrient foramina leading to nutrient canals.
- Except for a few with double or no foramina, 90% of long bones have a single nutrient foramen in the middle third of the shaft.
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- Each nerve emerges in two divisions: one division
through the anterior sacral foramina and the other
division through the posterior sacral foramina.
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- The intervertebral foramina that facilitate
access to the spinal cord for nerves and vessels.
-
- Between each
pair of vertebrae are two small openings called intervertebral foramina through which the spinal
nerves exit.
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- Dorsal roots and ventral roots come together and exit the intervertebral foramina as they become spinal nerves.