- Anatomy. the middle part of the diencephalon through which sensory impulses pass to reach the cerebral cortex.
- Botany. a receptacle or torus.
- Also called thalamium. an apartment for women in an ancient Greek house.
Origin of thalamus
Examples from the Web for thalamus
Thalamaflorous, with petals and stamens inserted on the torus or Thalamus.The Elements of Botany
About one fourth of the genera have numerous stamens or numerous carpels, or both, springing naturally from the thalamus.
The adventitious organs appeared as if they were developments from the thalamus—a kind of foliaceous disc, in fact.
The thalamus and corpus striatum are called together, the great inferior ganglion of the brain.
Ganglia geniculata are found for the first time in connexion with the optic tracts in the lower part of the thalamus.
- either of the two contiguous egg-shaped masses of grey matter at the base of the brain
- both of these masses considered as a functional unit
- the receptacle or torus of a flower
Word Origin and History for thalamus
1753, "the receptacle of a flower," Modern Latin, from Latin thalamus "inner chamber," from Greek thalamos "inner chamber, bedroom," related to thalame "den, lair," tholos "vault, vaulted building." Used since 1756 of a part of the forebrain where a nerve appears to originate.
- A large ovoid mass of gray matter that forms the larger dorsal subdivision of the diencephalon and is located medial to the internal capsule and to the body and tail of the caudate nucleus. It functions in the relay of sensory impulses to the cerebral cortex.
- The part of the vertebrate brain that lies at the rear of the forebrain. It relays sensory information to the cerebral cortex and regulates the perception of touch, pain, and temperature.