The gastropods , gastropods , univalves ( Gastropoda , from the Greek γαστήρ gaster, “stomach” and ποδη poda, “foot”) or single-shell creatures, are the best known, numerous and varied in terms of: – The shape of their shells : convex, globose, flat,...
Lymph nodes. They are nodular structures that are part of the lymphatic system and form cluster-shaped groupings. They are an important part of the immune system, as they help the body recognize and fight germs,...
Peripheral Nervous System (PNS). Also known as the nervous system of relationship life, it is made up of nerves and neurons . The difference between this and the central nervous system (CNS) is that the peripheral nervous system is not protected...
Crustaceans . They are mostly aquatic arthropods , although there are terrestrial species of very varied shapes, of which there are about 26,000 living species. Summary [ disguise ] 1 History 2 Morphology of a Crustacean 3 Other features 4 Classification of Crustaceans...
Axon . The axon is a long, thin tube that branches at the end into several presynaptic terminal branches. The message that travels through the axon is electrical, all or nothing, and is called an...
Frequency bands . Frequency intervals of the electromagnetic spectrum assigned to different uses within radio communications. Its use is regulated by the International Telecommunications Union and varies by location. The space assigned to the different bands includes...
Brain . It is an organ of the nervous system rich in neurons with specialized functions, located in the brain of vertebrate animals and most invertebrates . In the rest, the main organ is called the ganglion or set of ganglia. Summary [ disguise ] 1 Prehistory 2 General characteristics 1 Regions 2 Neurotransmission 3 Cell...
Noise (sound) . In the environment , noise is defined as any unwanted sound. From that point of view, the most excellent music can be classified as noise by the person who at a certain moment wants...
Diazepam . It is an Anxiolytic. Muscle relaxant. Sedative-Hypnotic. Summary [ disguise ] 1 Description 2 Chemical structure 3 Pharmacokinetics 4 Indications 5 Contraindications 6 Precautions 7 Adverse reactions 8 Sources Description Diazepam is a central nervous system depressant, and produces all levels of central...
Endolymphatic dropsy. Also known as Ménière’s Vertigo, it is a disease characterized by the presence of tinnitus (noises in the ears ), lack of hearing in outbreaks and vertigo for a variable period of time. It is an inner...
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