What's the difference between soma and trunk?

Soma


Definition:

  • (n.) The whole axial portion of an animal, including the head, neck, trunk, and tail.

Example Sentences:

  • (1) An initial complex-soma inflection was observed on the rising phase of the action potential of some cells.
  • (2) Axons emerge from proximal dendrites within 50 microns of the soma, and more rarely from the soma, in a tapering initial segment, commonly interrupted by one or two large swellings.
  • (3) In cat, DARPP-32-immunoreactive cell bodies identified as Müller cells were demonstrated in the inner nuclear layer (INL) with processes closely surrounding the cell soma of photoreceptors in the outer nuclear layer.
  • (4) Today the physician who treats women with emotional problems during menopause cannot function solely as a psychotherapist; he must deal with both their soma and psyche.
  • (5) For those synapses that were close to the soma the time constant for decay for the non-NMDA component, which was voltage insensitive, ranged from 4-8 ms. 7.
  • (6) We find that the labelled cell has a myelinated axon, but that the axon loses its myelin within 50 microns of the soma and has not yet been traced further.
  • (7) The soma of the injured neutron has a dense perinuclear ring of RNA.
  • (8) The effective electrical geometry under the conditions of control and 0.5 mM PNB sufficient to completely abolish the postsynaptic potential were determined from analyses of the membrane charging curves assuming the lumped-soma-short-cable model.
  • (9) Sequential recordings of spike amplitudes from the axon hillock, soma, and lateral dendrite suggest that the generator of the axotomy-induced component is localized to the normally passive soma and proximal dendrite.
  • (10) In order to determine whether there is a relationship between soma diameter and oxidative enzyme activity of alpha-motoneurons, we investigated the alpha-motoneurons innervating the different portions within a rat gluteus medius muscle.
  • (11) In oestrogen-treated preparations, tuberoinfundibular arcuate neurons responsive and unresponsive to accessory bulb stimulation could be distinguished by the frequency of successful antidromic propagation into the soma.
  • (12) These cells were also NSE positive and were characterized by the presence of soma action potentials.
  • (13) It is concluded that barium ions have at least 2 points of attack in the ganglion: 1, on the soma membrane of the neurones, and 2, on the presynaptic terminals controlling them.
  • (14) By the end of this period the neuronal soma and the proximal dendrites appeared mature in terms of both morphology and synaptic input.
  • (15) Although the globular bushy cell axons were not completely filled from the soma of origin to terminal fields in the contralateral brainstem, a number of consistent anatomical features were distinguished in the population.
  • (16) Approximately 85% of Na channels in the soma are essentially indistinguishable from those in the giant axon with regard to gating properties and sensitivity to tetrodotoxin or saxitoxin.
  • (17) In slices cut parallel to the pyramidal neurons (perpendicular to the brain surface) one can study chemosensitivity of the various parts of the dendritic tree and the soma.
  • (18) It has not been possible to connect the efferent somas with the fibers.
  • (19) Interestingly, the M-cell soma which stains positive for AChE was ChAT negative.
  • (20) However, the distribution of the enzymes is indirectly correlated as high levels of particulate cyclic AMP-dependent protein kinase are present in the soma of neurons with high concentrations of adenylate cyclase in their terminals.

Trunk


Definition:

  • (n.) The stem, or body, of a tree, apart from its limbs and roots; the main stem, without the branches; stock; stalk.
  • (n.) The body of an animal, apart from the head and limbs.
  • (n.) The main body of anything; as, the trunk of a vein or of an artery, as distinct from the branches.
  • (n.) That part of a pilaster which is between the base and the capital, corresponding to the shaft of a column.
  • (n.) That segment of the body of an insect which is between the head and abdomen, and bears the wings and legs; the thorax; the truncus.
  • (n.) The proboscis of an elephant.
  • (n.) The proboscis of an insect.
  • (n.) A long tube through which pellets of clay, p/as, etc., are driven by the force of the breath.
  • (n.) A box or chest usually covered with leather, metal, or cloth, or sometimes made of leather, hide, or metal, for containing clothes or other goods; especially, one used to convey the effects of a traveler.
  • (n.) A flume or sluice in which ores are separated from the slimes in which they are contained.
  • (n.) A large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact.
  • (n.) A long, large box, pipe, or conductor, made of plank or metal plates, for various uses, as for conveying air to a mine or to a furnace, water to a mill, grain to an elevator, etc.
  • (v. t.) To lop off; to curtail; to truncate; to maim.
  • (v. t.) To extract (ores) from the slimes in which they are contained, by means of a trunk. See Trunk, n., 9.

Example Sentences:

  • (1) It is likely that trunk mobility is necessary to maintain integrity of SI joint and that absence of such mobility compromises SI joint structure in many paraplegics.
  • (2) When subjects centered themselves actively, or additionally, contracted trunk flexor or extensor muscles to predetermined levels of activity, no increase in trunk positioning accuracy was found.
  • (3) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
  • (4) The same dose of clonidine evoked a much larger drop in blood pressure in another group of rats in which an equialent increase in blood pressure was produced by bilateral section of the vagosympathetic trunks and occlusion of both carotid arteries.
  • (5) Anomalous origin of the left coronary artery from the main pulmonary trunk results in myocardial ischemia or infarction, and may be a cause of death in the first months of life.
  • (6) Proper maintenance of body orientation was defined to be achieved if the net angular displacement of the head-and-trunk segment was zero during the flight phase of the long jump.
  • (7) In 1 patient there was concomitant aneurysmal dilatation of the brachiocephalic trunk.
  • (8) In anesthetized cats, the enhancement of sympathetic activity and increase of the blood pressure in exclusion of afferents (section of vagosympathetic trunks and clamping of common carotid arteries) as well as the disappearance of the activity in enhanced afferentation, were shown to be transient and to disappear within a few minutes-scores of minutes in spite of the going on deafferentation or enhancement of afferentation.
  • (9) Contact guidance has been suggested to direct NC cells ventrally in the trunk, but this has been subject to doubt (see Newgreen and Erickson, 1986, Int.
  • (10) This compared favorably with similar patients with melanoma arising either in the trunk or the extremity.
  • (11) This was true even when the locations of low resistance areas along the dorsal trunk were compared to only those vertebral palpatory findings rated as "severe."
  • (12) With the use of the method Chick Embryotoxicity Screening Test II (CHEST II), the potential neuropeptides L-prolyl-L-leucyl-glycinamide (MIF), cyclo(1-aminocyclo-pentanecarbonyl-L-alanyl)[cyclo(Acp-Ala)] and cyclo(glycyl-L-leucyl)[Cyclo(Gly-Leu)] were tested in the critical developmental periods of d 1.5 to 4 of chick embryogenesis in order to objectively examine their undesirable interactions with the developing morphogenetic systems of the brain, eye, face, body wall, limbs, trunk and heart.
  • (13) It occurred chiefly in the upper and lower extremities (40 cases) and less frequently in the trunk (11 cases) and the head and neck region (eight cases).
  • (14) In males, the predominant site was in the head, neck and trunk while in females it was in the lower limbs Clark level V was found in 35.6% of the cases.
  • (15) One patient harbored a basilar trunk aneurysm, 1 an aneurysm of the proximal posterior cerebral artery, 3 an aneurysm of the superior cerebellar artery, and 10 an aneurysm at the basilar tip.
  • (16) Microautoradiography showed that melanin-containing cells in the trunk and head kidney and in the olfactory rosettes also accumulated high amounts of radioactivity.
  • (17) The cervical sympathetic trunk (CST) was split into two bundles.
  • (18) The affected twin had classical loss of sc fat from her face, upper arms, and trunk as well as associated hypocomplementemia, microscopic hematuria, and a borderline oral glucose tolerance test without hyperinsulinism.
  • (19) Secretory function of the operated stomach was studied in 188 patients after trunk and selective vagotomy with distal resection and pyloroplasty of various extent.
  • (20) The relatively small reservoir and the maintenance of a minimum flow of water on the trunk river means the plant will work on average at barely 40% of its 11,200MW capacity.