ログイン
a substance that all living organisms produce that brings about a chemical reaction without being altered itself
酵素
(biology) the colorless liquid part of the blood in which the blood cells are suspended
血漿
any of a class of organic substances that do not dissolve in water that include many natural oils, waxes, and steroids
リピッド
a junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter
シナプス
the genetic makeup of an organism, determined by the combination of genes inherited from its parents
遺伝子型
a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes (sperm and egg cells) for sexual reproduction
減数分裂
a type of cell division that results in the formation of two daughter cells, each having the same number of chromosomes as the parent cell
有糸分裂
a branching extension of a neuron that receives signals from other neurons and conducts electrical impulses toward the cell body
樹状突起
a long, slender projection of a nerve cell that conducts electrical impulses away from the cell body towards other neurons or target cells
軸索
the system of glands and organs that produce and release hormones into the bloodstream, regulating various physiological functions and maintaining homeostasis
内分泌系
a gland that secretes substances, such as enzymes or mucus, through ducts that lead to the external environment or a body cavity, rather than directly into the bloodstream
外分泌腺
a steroid hormone that the body produces and is used in medicine to help cure skin diseases
コルチゾール
something that triggers a reaction in various areas like psychology or physiology
刺激
a small, membrane-bound sac within a cell, involved in the transport, storage, or release of substances
小胞
