- Commissural fiber
Brain: Commissural fiber Mesal aspect of a brain sectioned in the median sagittal plane. Latin fibra commissuralis, fibrae commissurales telencephali Gray's subject #189 843 NeuroNames ancil-221 Code TA A14.1.00.017
- the transverse fibers of the corpus callosum
- the anterior commissure
- the posterior commissure
- the lyra or hippocampal commissure.
In contrast to commissural fibers, association fibers connect regions within the same hemisphere of the brain. Projection fibers connect the lobe to other parts of the brain and the spinal cord.
Histology: nervous tissue (TA A14, GA 9.849, TH H2.00.06, H3.11) CNSGeneralOther PNSGeneral Neurons/
TerminationSynapse Human brain, cerebrum, Interior of the cerebral hemispheres, white matter: commissural fibers and septum (TA A14.1.09.241–271, 569–571, GA 9.828, 838–840) Corpus callosum Lamina terminalis Fornix Septum pellucidum
Wikimedia Foundation. 2010.
См. также в других словарях:
commissural fiber — fibra commissuralis … Medical dictionary
Fiber — The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or roughage. Complex carbohydrates from plants are rich in starch and fiber. Examples of plants that provide complex carbohydrates (fiber) are fresh… … Medical dictionary
commissural — adj. pertaining to a nerve fiber (Anatomy); pertaining to a joint (Anatomy, Biology) … English contemporary dictionary
Nerve fiber — Latin neurofibra MeSH Nerve+Fibers Code TA A14.0.00.001 A nerve fiber is a threadlike extension of a nerve cell and consists of an axon … Wikipedia
Efferent nerve fiber — Nerve: Efferent nerve fiber Latin neurofibrae efferentes Code TH H2.00.06.1.00016 In the nervous system, efferent nerves, otherwise known as motor or effector neurons, carry nerve impulses away from the central nervous system to eff … Wikipedia
Afferent nerve fiber — Nerve: Afferent nerve fiber Latin neurofibrae afferentes Code TH H2.00.06.1.00015 In the nervous system, afferent neurons (otherwise known as sensory or receptor neurons), carry nerve impulses from r … Wikipedia
Axon — For other uses, see Axon (disambiguation). Structure of a typical neuron Axon … Wikipedia
Myelin — Structure of a typical neuron Myelin sheath Dendrite … Wikipedia
Motor neuron — Neuron: Motor neuron Micrograph of the hypoglossal nucleus showing motor neurons with their c … Wikipedia
Neuromuscular junction — Electron micrograph showing a cross section through the neuromuscular junction. T is the axon terminal, M is the muscle fiber. The arrow shows junctional folds … Wikipedia