spinal cord
(Science: anatomy) Elongated, approximately cylindrical part of the central nervous system of vertebrates that lies in the vertebral canal and from which the spinal nerves emerge.
The Spinal Cord or Medulla Spinalis
The medulla spinalis or spinal cord forms the elongated, nearly cylindrical, part of the central nervous system which occupies the upper two-thirds of the vertebral canal.
spinal cord and the
brain
The peripheral nervous system is subdivided into the
sensory-somatic nervous system and the
autonomic nervous system ...
Spinal cord
Embryonic stem cells switched to neurons
In Jan. 2005, using stem cells science made major progress in understanding the process of how mammalian stem cells differentiate to form specific types of brain cells.
spinal cord
Part of the vertebrate central nervous system; consists of a thick, dorsal, longitudinal bundle of nerve fibers extending posteriorly from the brain.
spindle ...
spinal cord A cylinder of nerve tissue extending from the brain stem; receives sensory information and sends output motor signals; with the brain, forms the central nervous system.
spinal cord
A more or less uniform tube extending the full length of the body in vertebrates behind the head. It is enclosed in the backbone.
Spinal cord motor neurons control voluntary movement by relaying messages that arrive from upper brain centres to the innervated muscles.
The spinal cord runs along the dorsal side of the body and links the brain to the rest of the body. Vertebrates have their spinal cords encased in a series of (usually) bony vertebrae that comprise the vertebral column.
Gray matter in the spinal cord that contains motor nerve cell bodies.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Histology at OU 3_09 - "Slide 3 Spinal cord"
v - d - e
Histology: nervous tissue Neurons (gray matter) ...
The brain and the spinal cord derive from the neural tube. The neural tube closes early in embryogenesis and failure to close can result in a baby who is anencephalic (without a brain) or who has spina bifida (an opening somewhere along the spine).
Like a powerful broadband Internet connection, your spinal cord can move a lot of data very quickly. Its job is to carry messages to and from the body to the brain.
Cells of the developing notochord send out Sonic Hedgehog signals to the spinal cord. These cells respond to the signaland then differentiate into the ventral part of the spinal cord, which makes the motor neurons that permit muscular activity.
The traits that make all of the animals in this section special are their spinal cords, vertebrae, and notochords. It's all about having a series of nerves along your back (dorsal side).
urophysis A discrete structure in the spinal cord of the fish tail that produces neuropeptides that help control water and ion balance, blood pressure, and smooth muscle contractions. 586
uropod Posteriormost appendage of many crustaceans.
three membranous coverings of the brain and spinal cord; outer dura mater, arachnoid, and inner pia mater
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
...
Segmented mesodermal blocks located on either side of the developing spinal cord which arise from the dorsal mesoderm.
The excess growth of astrocytes in the brain or spinal cord, usually occurring after injury to one of these parts.
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Meninges the three membranes covering the brain and spinal cord
(sing = meninx; meninx = a membrane)
Meningitis inflammation (infection) of the meninges
(meninx = a membrane; -itis = inflammation of) ...
The skull cavity through which the spinal cord passes (see occipital bone) ...
central nervous system (CNS) - in the vertebrates, the brain and spinal cord; derived from the neural tube.
Examples include muscle tissue, nervous system tissue (including the brain, spinal cord, and nerves), and connective tissue (including ligaments, tendons, bones, and fat). Organs are made up of tissues.
Nociceptor A specialized neuron that transmits signals to pain-processing centers of the spinal cord and brain in response to the onset of tissue damage.
These people are very critical of Christopher Reeve, who advocates funding to cure spinal cord injuries. They say he hasn't accepted his disability. Others have difficulty with the idea of no longer being disabled.
Spina bifida -- a congenital condition that results from altered fetal development of the spinal cord, part of the neural plate fails to join together and bone and muscle are unable to grow over this open section.
 See also: Brain, Organ, Trans, Cells, Muscle
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