The spinal nerves spring from the medulla spinalis, and are transmitted through the intervertebral foramina. They number thirty-one pairs, which are grouped as follows: Cervical, 8; Thoracic, 12; Lumbar, 5; Sacral, 5; Coccygeal, 1. 1 ...
nerves controlling the caliber of the arteries by the contraction and expansion of muscles in their walls Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
nerves Bundles of neuronal processes enclosed in connective tissue that carry signals to and from the central nervous system. PICTURE ...
Nerves that control skeletal muscles in mammals correspond with neuron groups along the primary motor cortex of the brain's cerebral cortex.
The main nerves of the parasympathetic system are the tenth cranial nerves, the vagus nerves. They originate in the medulla oblongata.
Pertaining to nerves that release the neurotransmitter norepinephrine/noradrenaline (e.g. adrenergic nerves, adrenergic response). An alternative U.S. useage also pertains to the receptors acted upon by noradrenaline, i.e. adrenergic receptors.
4. Having the nerves weak, diseased, or easily excited; subject to, or suffering from, undue excitement of the nerves; easily agitated or annoyed. Poor, weak, nervous creatures. (Cheyne) ...
THE 12 CRANIAL NERVES The cranial nerves are part of the peripheral nervous system. Some are composed of sensory neurons, some of motor neurons and some are mixed.
Charcot-Marie Tooth disease -- a condition characterized by degeneration of the motor and sensory nerves that control movement and feeling in the arm below the elbow and the leg below the knee; transmitted in autosomal dominant, ...
The Peripheral Nervous System (PNS)contains only nerves and connects the brain and spinal cord (CNS) to the rest of the body. The axons and dendrites are surrounded by a white myelin sheath.
Also the special nerves of perspiration can increase or lessen heat loss by promoting or diminishing the secretions of the skin.
It's all about having a series of nerves along your back (dorsal side). If you are an organism, you can't just have the nerves sitting there. You need to give those nerves support and protection.
Specialized cells that formed nerves and muscles-tissues impossible for plants to evolve-gave these organisms mobility.
peripheral nervous system The nerves and ganglia of the nervous system that lie outside of the brain and spinal cord. peripheral protein A protein on the surface of a biological membrane.
sciatic nerve composed of spinal nerves VII, VIII, IX united to send impulses to the hind leg. sciatic plexus the uniting of spinal nerves VII, VIII, IX to form the sciatic nerve to the hind leg.
[L. ex, out of + ferre, to bear] Carrying away from a center, applied to nerves and blood vessels. egg A female gamete, which usually contains abundant cytoplasm and yolk; nonmotile and often larger than a male gamete.
There are 32 different nerves that connect directly into the spinal cord, and that branch outward towards the rest of the body.
nerve cord -- Primary bundle of nerves in chordates, which connects the brain to the major muscles and organs of the body.
Optic Chiasma the place where the optic nerves cross to the other side of the brain (opti = the eye; chiasm = cross) Organelle the "body parts" within a cell (organum = an instrument‚ implement‚ engine; -elle = small) ...
Acute inflammation with destruction of myelin around nervous fibres in peripheral nerves. The mechanism is auto-immune triggered by myelin present in rabies vaccines prepared with infected brains ...
[Clopton Havers, British physician and anatomist, 1650-1702] The basic structural arrangement of compact bone consisting of: a Haversian canal which contains nerves and blood supply, ...
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.
[We] don't know the answers to that question, and that means that we don't really understand the root cause of the disease. We know what happens. We know the blood sugar goes up. We know the nerves get damaged, the blood vessels, ...
Progressive degeneration of nerves and muscles is demonstrated by motor problems, wasting and premature death. Tau is hyperphosphorylated but there is no formation of filaments or neurofibrillary tangles.
See also: Human, Trans, Class, Muscle, Anatomy
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