The pontine tegmentum is all the material dorsal from the basilar pons to the fourth ventricle. Along with the dorsal surface of the medulla, it forms part of the rhomboid fossa – the floor of the fourth ventricle.

What is the tegmentum of pons?

The pontine tegmentum is all the material dorsal from the basilar pons to the fourth ventricle. Along with the dorsal surface of the medulla, it forms part of the rhomboid fossa – the floor of the fourth ventricle.

Is the tegmentum in the pons or midbrain?

The tegmentum (from Latin for “covering”) is a general area within the brainstem. The tegmentum is the ventral part of the midbrain and the tectum is the dorsal part of the midbrain.

What are the 3 parts of the midbrain?

The midbrain is the topmost part of the brainstem, the connection central between the brain and the spinal cord. There are three main parts of the midbrain – the colliculi, the tegmentum, and the cerebral peduncles.

What does the tectum and tegmentum do?

tectum: The dorsal part of the midbrain, responsible for auditory and visual reflexes. tegmentum: The ventral portion of the midbrain, a multisynaptic network of neurons involved in many unconscious homeostatic and reflexive pathways.

What does the tegmentum contain?

The tegmentum of the medulla contains the medullary reticular formation, together with cranial nerve nuclei and ascending tracts. It also includes a number of ‘vital centres’ which subserve cardiorespiratory functions and airway-protective reflexes (e.g. cough, sneeze, gag).

What is the role of the tegmentum?

Tegmentum. Reticular formation: This highly diverse and integrative area contains a network of nuclei responsible for many vital functions including arousal, consciousness, sleep-wake cycles, coordination of certain movements, and cardiovascular control.

What is the tectum of midbrain?

The region of the midbrain posterior to the cerebral aqueduct is called the tectum, which means “roof” in Latin. The tectum consists primarily of the superior and inferior colliculi. The area of the midbrain anterior to, or in front of, the cerebral aqueduct is called the tegmentum.

What is the function of tegmentum?

What is the main function of tegmentum?

What happens if the tegmentum is damaged?

Damage to the brainstem tegmentum is known to cause coma, the most radical disturbance of consciousness. However, it has remained unclear which nuclei within the tegmentum are crucial for the maintenance of consciousness in humans.