What is Tentorial tear?

What is Tentorial tear?

Definition. Disruption of the tentorium cerebelli incurred during delivery. [ from NCI]

What is the tentorium of the brain?

The tentorium cerebelli, the second-largest dural reflection, is a crescent-shaped dura fold that extends over the posterior cranial fossa, separating the occipital and temporal cerebral hemisphere from the cerebellum and infratentorial brainstem [1,6]. This dural reflection has a free and fixed margin.

Where does the FALX cerebri attach?

crista galli
The falx cerebri is relatively thin anteriorly where it attaches to the crista galli of the ethmoid bone, but is broader posteriorly where it attaches to the superior surface of the tentorium cerebelli inferiorly 1,2.

What lies directly above tentorium?

The upper surface of the tentorium is continuous with the dura of the floor of the middle cranial fossa. In the midline, the tentorium is attached to the other major partition, the falx, which we’ll add to the picture. This is the falx. Its full name is falx cerebri.

Where does the tentorium attach?

The tentorium is a tent-shaped duplicated fold of meningeal dura that attaches to the sphenoid bone anteriorly, the petrous temporal bone laterally, and the squamous part of the occipital bone posteriorly.

What are falx cerebri made of?

Anatomical terms of neuroanatomy The falx cerebri, also known as the cerebral falx, is a large, crescent-shaped fold of meningeal layer of dura mater that descends vertically in the longitudinal fissure between the cerebral hemispheres of the human brain.

Why is falx cerebri important?

The falx cerebri separates the cerebral hemispheres and houses the dural sinuses, into which the blood and cerebrospinal fluid drain. The function of the falx cerebri may be to constrain the brain and limit its displacement and rotation inside the cranium. …

Is occipital lobe supratentorial?

The image below shows a side (lateral) view of the tentorium cerebelli – an extension of the dura matter that separates the cerebellum from the bottom (inferior) portion of the occipital lobes. Tumors below the tentorium are called infratentorial and those above are called supratentorial.

Is the brain stem supratentorial?

The supratentorial area contains the cerebrum, lateral ventricle, third ventricle, choroid plexus, hypothalamus, pineal gland, pituitary gland, and optic nerve. The posterior fossa/infratentorial area contains the cerebellum, tectum, fourth ventricle, and brain stem (pons and medulla).

What is supratentorial compartment?

The supratentorial compartment includes the cerebral hemispheres and the sellar, pineal, and diencephalic regions, whereas the infratentorial compartment includes the midbrain, pons, medulla, and cerebellum.

What is cerebellar tentorium?

The cerebellar tentorium or tentorium cerebelli (Latin for “tent of the cerebellum”) is an extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.

What does falx cerebri attach to?

What is a partially or completely torn ACL?

A partially or completely torn ACL is a common injury among athletes. Complete ACL tears are usually treated by sports medicine physicians and orthopedic surgeons with an ACL reconstruction surgery, in which the torn ligament is replaced with a tissue graft to mimic the natural ACL.

What is an ACL surgery?

ACL surgery is a repair or reconstruction of the anterior cruciate ligament (ACL). The ACL is an important soft-tissue structure in the knee that connects the femur to the tibia. A partially or completely torn ACL is a common injury among athletes.

What is an ACL sprain called?

ACL injury An ACL injury is a tear or sprain of the anterior cruciate (KROO-she-ate) ligament (ACL) — one of the strong bands of tissue that help connect your thigh bone (femur) to your shinbone (tibia).

Can You exercise with a torn ACL?

An ACL injury happens when you overstretch or tear the ACL ligament in the knee. You may need surgery or extensive rehabilitation to recover from this injury. Exercises you can do at home can help you while you wait for surgery or work on your rehabilitation.