Crus cerebri

Crus Cerebri is a part of the brain anatomy, specifically the brainstem. It is a white matter tract that connects the cerebral cortex to the pons and is a part of the cerebral peduncle.

Anatomy

The crus cerebri, also known as the cerebral peduncle, is located on each side of the midbrain and is divided into two parts: the front part is the cerebral crus (crus cerebri) and the back part is the tegmentum. The cerebral crus contains the large ascending and descending nerve tracts that run to and from the cerebrum.

Function

The main function of the crus cerebri is to connect the forebrain and the hindbrain. It carries motor fibers from the cortex to the pons and spinal cord. These fibers are involved in voluntary motor function, motor function planning, and the coordination of eye movements.

Clinical Significance

Damage to the crus cerebri can result in a variety of neurological disorders, including Weber's syndrome and cerebral palsy. Weber's syndrome is a midbrain stroke syndrome that can cause a variety of symptoms, including paralysis on the side of the body opposite to the lesion and cranial nerve deficits. Cerebral palsy is a group of disorders that affect movement and muscle tone or posture, often caused by damage to the developing brain during pregnancy or childbirth.

See Also

• Brainstem
• Cerebral cortex
• Pons
• Weber's syndrome
• Cerebral palsy

References

Crus cerebri Resources
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