Hippocampus. Ammon's Horn . Hippocampus Proper . Schaffer Collaterals . Ammons Horn . Collaterals, Schaffer . Formation, Hippocampal . Formations, Hippocampal . Hippocampal Formations . Hippocampus Propers . Horn, Ammon . Horn, Ammon's . Proper, Hippocampus . Propers, Hippocampus . Subiculums . Ammon Horn . Cornu Ammonis . Hippocampal Formation . Subiculum . AMMON'S HORN . A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation. . 1.00
Ammonia. Ammonia Nitrogen . A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE. . 0.56
Ammonium Compounds. Ammonium . Inorganic compounds that include a positively charged tetrahedral nitrogen (ammonium ion) as part of their structure. This class of compounds includes a broad variety of simple ammonium salts and derivatives. . 0.53
Ammonium Chloride. Sal Ammoniac . Ammoniac, Sal . Chloride, Ammonium . An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating. . 0.50
