what is the function of thalamus?
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Answers
Answer:
The thalamus is a mostly gray matter structure of the diencephalon that has many essential roles in human physiology. The thalamus is composed of different nuclei that each serve a unique role, ranging from relaying sensory and motor signals, as well as regulation of consciousness and alertness
Explanation:
connects right and left halves of thalamus. processes and relays information to cerebral cortex. control ANS, controls emotional response, regulation of body temp, regulation of hunger and thirst sensations, controls behavior, regulation of sleep-wake cycle, control of endocrine system, formation of memory.
Explanation:
The dorsal thalamus, usually simply referred to as the thalamus is a subdivision of a brain area called the diencephalon, which also includes the eptithalamus, the ventral thalamus and the subthalamic thalamus.
Vertical section of a human brain. showing the medulla, pons, cerebellum, hypothalamus, thalamus, midbrain. Image Copyright: Designua / Shutterstock
Vertical section of a human brain. showing the medulla, pons, cerebellum, hypothalamus, thalamus, midbrain. Image Copyright: Designua / Shutterstock
The thalamus relays sensory impulses from receptors in various parts of the body to the cerebral cortex. A sensory impulse travels from the body surface towards the thalamus, which receives it as a sensation. This sensation is then passed onto the cerebral cortex for interpretation as touch, pain or temperature.
The prevailing opinion among experts is that the thalamus serves as a kind of “gate,” filtering which information from various channels is allowed to be relayed by it for processing. Detailed research has shown that specific thalamic neurons can modulate informational transfer by employing specific discharge modes.
Furthermore, the thalamus is crucial for perception, with 98% of all sensory input being relayed by it. The only sensory information that is not relayed by the thalamus into the cerebral cortex is information related to smell (olfaction).