What is tectum in Latin?
From Latin tēctum (“roof”), from tegō (“I cover”), cognate with Ancient Greek τέγος (tégos, “roof; any covered room of a house”).
What is the difference between tegmentum and tectum?
As nouns the difference between tegmentum and tectum is that tegmentum is the ventral portion of the midbrain, divided from the tectum by the cerebral aqueduct and the periaqueductal grey while tectum is (anatomy) the dorsal portion of the midbrain, containing the superior colliculus and inferior colliculus.
What is the tegmentum in psychology?
n. (pl. tegmenta) the central core of the midbrain and pons. It contains sensory and motor tracts passing through the midbrain and also several nuclei, including the oculomotor nucleus, red nucleus, and subthalamic nucleus.
What is the main function of 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 optic tectum?
The optic tectum (superior colliculus in mammals) is a highly conserved midbrain nucleus of vertebrates that typically receives retinal input and directs the eyes and body toward salient visual features.
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.
Where is the tectum and tegmentum?
the midbrain
The tegmentum is the ventral part of the midbrain and the tectum is the dorsal part of the midbrain. It is located between the ventricular system and distinctive basal or ventral structures at each level.
Where is the tectum located in the brain?
midbrain
The tectum (Latin for roof) is the dorsal side of the midbrain. The position of the tectum is contrasted with the tegmentum, which refers to the region in front of the ventricular system, or floor of the midbrain. It is involved in certain reflexes in response to visual or auditory stimuli.
What is the tegmentum of the brain?
The tegmentum is the ventral part of the midbrain and the tectum is the dorsal part of the midbrain. It is located between the ventricular system and distinctive basal or ventral structures at each level.
What is the tectum of the brain?
Anatomically, the tectum is that portion of the mesencephalon, or midbrain, sitting between the hindbrain and the forebrain. The name is the Latin word for roof and reflects the view of early anatomists that the tectum formed a roof over the fluid-filled cerebral aqueduct and the tegmentum.
Where is the tectum of the brain?
Anatomically, the tectum is that portion of the mesencephalon, or midbrain, sitting between the hindbrain and the forebrain. The name is the Latin word for roof and reflects the view of early anatomists that the tectum formed a roof over the fluid-filled cerebral aqueduct and the tegmentum.
What is the tegmentum?
The tegmentum (from Latin for “covering”) is a general area within the brainstem. It is located between the ventricular system and distinctive basal or ventral structures at each level.
What is the tegmentum of the midbrain?
tegmentum (plural tegmentums or tegmenta) The ventral portion of the midbrain, divided from the tectum by the cerebral aqueduct and the periaqueductal grey. Containing the following nuclei: red nucleus, substantia nigra, ventral tegmental area.
What is the tegmentum of a leaf bud?
Tegmentum, teg-men′tum, n. the scaly covering of the leaf-buds of deciduous trees. The tegmentum is formed by the fold of mantle covering the edge of the articulamentum, and extends over the latter from the sides. The tegmentum is much reduced in Acanthochiton, and absent in the adult Cryptochiton.
How is the tegmentum formed in Cryptochiton?
The tegmentum is formed by the fold of mantle covering the edge of the articulamentum, and extends over the latter from the sides. The tegmentum is much reduced in Acanthochiton, and absent in the adult Cryptochiton.