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Microglia are a type of glial cell located throughout the brain and spinal cord of the central nervous system (CNS). [1] Microglia account for about 10–15% of cells found within the brain. [2] As the resident macrophage cells, they act as the first and main form of active immune defense in the CNS. [3] Microglia originate in the yolk sac ...
The temporal lobes are a region of the cerebral cortex that is located beneath the Sylvian fissure on both the left and right hemispheres of the brain. [14] Lobes in this cortex are more closely associated with memory and in particular autobiographical memory. [15] The temporal lobes are also concerned with recognition memory.
The chemoreceptor trigger zone (CTZ) is an area of the medulla oblongata that receives inputs from blood -borne drugs or hormones, and communicates with other structures in the vomiting center to initiate vomiting. The CTZ is located within the area postrema, which is on the floor of the fourth ventricle and is outside of the blood–brain ...
Microplastics found in the human brain. Kaitlin Sullivan. Updated September 16, 2024 at 12:50 PM. Mounting research over the last few years has found microplastics in nearly every organ in the ...
September 16, 2024 at 11:00 AM. Tiny plastic shards and fibers were found in the nose tissue of human cadavers, according to a small new study. The threads and microplastic pieces were discovered ...
The brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. It consists of the cerebrum, the brainstem and the cerebellum. The brain controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making ...
Previous research shows that pregnancy hormones can also cause changes in the brain. Now, researchers from the University of California — Santa Barbara have for the first time shown how hormonal ...
The area postrema, one of the circumventricular organs, [10] detects toxins in the blood and acts as a vomit-inducing center. The area postrema is a critical homeostatic integration center for humoral and neural signals by means of its function as a chemoreceptor trigger zone for vomiting in response to emetic drugs.