nerve fibre layer
21human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
22sound reception — Introduction response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly …
23Nobel Prize winners by name — ▪ Table Nobel Prize winners by name A B C D E F G H I J K L M N O P Q R S T U V W Y Z A name year category country* achievement literary area Abrikosov, Alexey A. 2003 physics U.S. discoveries… …
24Nobel Prize winners by year — ▪ Table Nobel Prize winners by year 1901–10 1941–50 1981–90 1911–20 1951–60 1991–2000 1921–30 1961–70 2001–08 1931–40 1971–80 1901–10 year category name country* achievement literary area 1901 chemistry Henricus van t (Hoff, Jacobus Henricus van… …
25Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
26nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… …
27mechanoreception — See mechanoreceptor. * * * Ability to detect and respond to mechanical stimuli in one s environment. A slight deformation of a mechanoreceptive neuron causes an electric charge at its surface, activating a response. Mechanoreceptors in pain spots …
28annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… …
29thermoreception — Sensory capacity (see sense) to detect the temperature of the environment and the body. It helps keep body temperature stable by regulating autonomic responses to temperature changes (see homeostasis). Temperature sensations are generated by… …
30Fovea centralis — Schematic diagram of the human eye, with the fovea at the bottom. It shows a horizontal section through the right eye Latin fovea centra …
