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1 giorno fa · The nerves that supply the vulva are the pudendal nerve, perineal nerve, ilioinguinal nerve and their branches. Blood and nerve supply to the vulva contribute to the stages of sexual arousal that are helpful in the reproduction process.
4 giorni fa · References. External links. Brain. The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It consists of nervous tissue and is typically located in the head ( cephalization ), usually near organs for special senses such as vision, hearing and olfaction.
1 giorno fa · Action potential. As an action potential (nerve impulse) travels down an axon there is a change in electric polarity across the membrane of the axon. In response to a signal from another neuron, sodium- (Na +) and potassium- (K + )–gated ion channels open and close as the membrane reaches its threshold potential.
2 giorni fa · brain, the mass of nerve tissue in the anterior end of an organism. The brain integrates sensory information and directs motor responses; in higher vertebrates it is also the centre of learning. The human brain weighs approximately 1.4 kg (3 pounds) and is made up of billions of cells called neurons.
7 mag 2024 · Nerve, in anatomy, a glistening white cordlike bundle of fibers, surrounded by a sheath, that connects the nervous system with other parts of the body. The nerves conduct impulses toward or away from the central nervous mechanism. In humans 12 pairs are attached to the brain and 31 pairs to the spinal cord.
- The Editors of Encyclopaedia Britannica
11 mag 2024 · The Editors of Encyclopaedia Britannica. Last Updated: May 11, 2024 • Article History. cranial nerves. Also called: X cranial nerve or 10th cranial nerve. Related Topics: posterior vagal trunk. anterior vagal trunk. inferior ganglion of vagus. superior ganglion of vagus. superior laryngeal nerve. (Show more) Recent News.
15 mag 2024 · Google and Harvard unveil most detailed ever map of human brain | CNN. By Jacopo Prisco, CNN. 6 minute read. Published 3:23 PM EDT, Wed May 15, 2024. Link Copied! This image displays a single human...
