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Nervous in Biological Dictionary

Ventral root

... (physiology) ) ... toward the central nervous system); efferent neurons (carrying motor impulses away from the central nervous system) are present in the ventral root ganglia. spinal cord structure ( in human nervous ... This efferent transmission is ...

Skeletal muscle

... of skeletal muscle is controlled by the nervous system. ... Iris & Light Simulations: ... muscle . 3 Physiology and contraction. 4 nervous control ... A skeletal muscle may contain ... system. ... These tissues are connective , nervous , vascular , and skeletal muscle tissues. ... ...

Sensory neurons

... input, and send projections into the central nervous system that convey sensory information to the ... or spinal cord. Unlike neurons of the central nervous system, whose inputs come from other neurons , ... or nerve cell) is an excitable cell in the nervous system that processes and transmits information ...

Peripheral

... core architecture. The peripheral nervous system (PNS) resides or extends outside the central nervous system (CNS), which consists of the brain and ... nerves relay information from your central nervous system (brain ... Peripheral neuropathy occurs ...

Neuroscience

... Neuroscience is the scientific study of the nervous system. Such studies span the structure, ... the brain, spinal cord and peripheral nervous system. Neuroscience includes the study of ... "N-Methyl-D-Aspartate Receptors in the Enteric nervous ... Congratulations to Dr. Jeremy Flint, who ...

Neuroglia

... and participate in signal transmission in the nervous system. In the ... Thus, the term ... neuroglia n. The supportive tissue of the nervous system, including the network of branched cells in the central nervous system (astrocytes, glia n. See neuroglia . ...

Neuron

... or nerve cell) is an excitable cell in the nervous system that processes and transmits information ... to be as many as 100 billion neurons in our nervous system! A typical neuron has all the parts that ... Neurons are the basic building blocks of the nervous system. ... There are three basic parts of a ...

Nervous system

... The nervous system is a network of specialized cells that ... composed ... For that reason the enteric nervous system has been called "the second brain" ... a b autonomic nervous system at Dorland's Medical Dictionary ....

Hypothalamus

... functions of the hypothalamus is to link the nervous system to the endocrine system ... ... to even a ... The hypothalamus links the nervous system to the endocrine system by ... ... hypothalamus is some of the most complex in the nervous system, ... The hypothalamus is one of the ...

Glial cells

... and participate in signal transmission in the nervous system. In the ... Glial cells , ... at these stages. ... Glial cells of the nervous system are non-neuronal cells of which ... to study the function of glial cells in the nervous system, because these cells ... Glial ...

Cephalization

... Cephalization is an evolutionary trend, whereby nervous tissue, over many generations, becomes ... is the process in animals by which nervous and ... Although cephalization is associated ... ... Cephalization - concentration of the nervous tissue into a head; which allow for ... a well ...

Autonomic nervous system

... The autonomic nervous system is the part of the peripheral nervous system that acts as a control system ... respiration rate, ... autonomic nervous system n. The part of the vertebrate ...

Spinal cord

... The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain. The brain and spinal cord together make up the central nervous system. Enclosed within, and protected by, ... Spinal cord ...

Neural

... The nervous system is a network of specialized cells that communicate information ... (disambiguation) ... neural adj. Of or relating to a nerve or the nervous system. ... n. groove — the longitudinal furrow in the neural plate of ...

Neural plate

... of the dorsal nerve cord, and the eventual formation of the central nervous system. The process begins when ... neural plate ( ′nu̇rəl ′plāt ... online encyclopedia article on neural plate (anatomy), ... the nervous system from a part of ectoderm lying originally on the dorsal side of ...

Midbrain

... the midbrain is referred to as the tegmentum (which produces ... The nervous system of the human being is responsible for sending, receiving, and ...... Columbia ... midbrain : see brain brain, the supervisory center of the nervous system in ... ...

Interneuron

... neurons, interneuron cell bodies are always located in the central nervous system (CNS). interneuron n. A nerve cell found entirely within the central nervous system that acts as a link between sensory neurons and motor neurons ...

Infundibulum

... stalk, containing nerve tracts passing from the hypothalamus to the nervous lobe ... infundibulum ... Information about infundibulum in the ... term. What does infundibulum mean? ... infundibulum of uterine tube. nervous lobe. semilunar hiatus. More ... Zoology information, history, articles ...

Hyperpolarization

... in the following places at Britannica. Assorted References function in nervous systems ( in nervous system (anatomy): The neuronal membrane ) ... the plasma membrane has ...

Hindbrain

... hindbrain ) is a developmental categorization of portions of the central nervous system in vertebrates. Introduction Forebrain Midbrain Hindbrain ... hindbrain ) is a developmental categorization of portions of the central nervous system in vertebrates. Information about hindbrain in the free ...

Epinephrine

... in the "fight or flight" response of the sympathetic nervous system. It is a catecholamine, a sympathomimetic monoamine produced by the ... ... Epinephrine stimulates a series of actions of the sympathetic nervous system ... Endogenous epinephrine is produced primarily from ...

Voluntary muscle

... Skeletal muscle is a form of striated muscle tissue existing under control of the somatic nervous system. It is one of three major muscle types, the others being cardiac and smooth muscle . As its name suggests, ... These muscles ...

Tissue

... Tissue - Definition of Tissue at Dictionary.com a free online dictionary with ... Connective tissue . Human tissue . Cells tissues ... nervous tissue . Organ system ... Tissue , group of associated, similarly structured cells that perform specialized ... Tissue (biology) - ...

Synapse

... wireless solution, including the ... Intended for elementary and secondary school students and teachers who are interested in learning about the nervous system and brain with hands on activities, ... Panik House's SEX & FURY - Available again soon! Checkout The Complete Synapse Collections! ....

Spongy mesophyll

... ... spongy mesophyll synonyms, spongy mesophyll antonyms. Information about spongy mesophyll ... spongy degeneration of central nervous system. spongy ... Spongy mesophyll - Definition of Spongy mesophyll at Dictionary.com a free ... Function of spongy ... Palisade ...

Spinal nerve

... 4e. Composition and Central Connections of the Spinal Nerves ... more varied in their composition than the spinal nerves . ... The nervous System - Spinal Cord and Peripheral Nerves ... The spinal nerves contain the fibers of the sensory and motor neurons. ... There are 31 ...

Smooth muscle

... ... Smooth muscle cells contain one centrally placed nucleus. ... The innervation of smooth muscle is provided by the autonomic nervous system. ... Individual smooth muscle cells are "fusiform" or "spindle shaped" that is, they ... In cross sections, each smooth muscle ...

Sense

... Senses are the physiological methods of perception. ... The nervous system has a specific sensory system, or organ, dedicated to each sense . ... The distinction between Sinn and Bedeutung was an innovation of ...

Schwann cells

... crest ... time of birth in rodents, Schwann cells destined to myelinate ... Schwann cells are the myelinating glia of the peripheral nervous system. ... Treatment of dorsal root ganglia neuron- Schwann cell cocultures with H-89 (10 µM) ... During development, some Schwann cells ...

Reflex arc

... follows. ... It is the simplest reflex arc and the integration center is the synapse itself. ... Reflex Arc . Organisation of the. nervous System ... In a simple reflex arc , such as the knee jerk, a stimulus is detected by a ... A reflex arc is the neural pathway that ...

Purkinje fibers

... Purkinje fibers are a unique end organ cardiac extension of the Autonomic nervous System. ... Cardiac pacemaker · SA node · AV node• bundle of His · Purkinje fibers ... For the cells of the electrical conduction system ...

Prion

... self-replicate and the ... Transmissible spongiform encephalopathies are a group of progressive conditions that affect the brain and nervous system of many animals, including humans. According to the most widespread hypothesis they are transmitted by prions, though some other data ...

Polyadenylation

... polyadenylation signal and is ... Polyadenylation in Xenopus Development. cis elements. trans factors. ... POLYADENYLATION IN THE CENTRAL nervous SYSTEM. POLYADENYLATION AND THE MECHANISMS OF ... Cleavage- Polyadenylation , a posttranscriptional event of mammalian gene ... The Core ...

Phototropism

... ... Phototropism in plants such as Arabidopsis thaliana is ... Mutation, Natural Gas, Natural Numbers, Nautical Archaeology, Nebula, Neptune, nervous System, Neutron, Neutron Star, Nitrogen Cycle, ... Phototropism - Definition of Phototropism at Dictionary.com a free online ... ...

Peripheral protein

... called ... The buildup of unprocessed peripheral myelin protein 22 probably also disrupts ... Schwann cells are part of the peripheral nervous system that connects the brain ... myelin peripheral protein . myelin protein zero (Charcot-Marie-Tooth neuropathy 1B) ... ... with ...

Parathyroid glands

... Parathyroid disease treatment, parathyroid glands , mini- parathyroid surgery. ... How parathyroid glands control the calcium in our blood, nervous system, and bones. ... New mini parathyroid surgery and parathyroid operations. Written for patients by parathyroid ... Introduction to ...

Optic nerve

... can be easily seen. ... The optic nerve originates from the bipolar cells of the retina which are ... electrical activity to the central nervous system through the optic nerve . ... Award winning make-up effects studio specializing in prothetics and creature make-ups for film and ...

Olfactory nerve

... >>> Aspects of the topic olfactory - nerve are discussed in the following places at Britannica. Assorted References major reference ( in human nervous system (anatomy): Olfactory nerve (CN I or 1) ) Bipolar cells in the nasal mucosa give rise to axons that enter the cranial cavity through ...

Olfaction

... must have ... Insect Olfaction ... Intended for elementary and secondary school students and teachers who are interested in learning about the nervous ... smell, called olfaction , involves the ... Insects primarily use their antennae for olfaction . ... Olfaction at cf.ac.uk ... Olfaction ...

Nucleus

... cells. It contains most of the cell's genetic material, organized as multiple long ... Nucleus (neuroanatomy), a central nervous system structure composed mainly of gray matter ... Nucleus (band), a British jazz-rock band led by Ian Carr ... Cell nucleus The largest ...
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