afferent impulse

См. также в других словарях:

• afferent neuron — any neuron conducting a nerve impulse that originated at a receptor and is proceeding towards the center. See also sensory n., and see afferent fibers, under fiber …   Medical dictionary

• afferent — af•fer•ent [[t]ˈæf ər ənt[/t]] adj. 1) phl bringing to or leading toward an organ or part, as a nerve or arteriole (opposed to efferent). 2) pat phl a nerve that conveys an impulse toward the central nervous system • Etymology: 1830–40; < L… …   From formal English to slang

• afferent pathway — the nerve structures through which an impulse, especially a sensory impression, is conducted to the cerebral cortex; see also ascending tract and sensory tract, under tract …   Medical dictionary

• nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

• nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

• Patellar reflex — The patellar reflex or knee jerk is a stretch reflex and is a myotatic reflex. MechanismStriking the patellar tendon with a tendon hammer just below the patella stretches the quadriceps tendon. This stimulates stretch sensory receptors (most… …   Wikipedia

• Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… …   Medical dictionary

• animal behaviour — Introduction       any activity of an intact organism.       A living animal behaves constantly in order to survive, and all animals must solve the same basic problems. They must, for instance, periodically replace their energy source (consume… …   Universalium

• sexual behaviour, human — Introduction       any activity solitary, between two persons, or in a group that induces sexual arousal. There are two major determinants of human sexual behaviour: the inherited sexual response patterns that have evolved as a means of ensuring… …   Universalium

• Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …   Medical dictionary

• Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… …   Medical dictionary