UNIT STUDY OF THE TRIGEMINAL PROJECTIONS IN THE RETICULAR FORMATION OF THE MEDULLA OBLONGATA IN THE CAT

1960 ◽  
Vol 38 (1) ◽  
pp. 1163-1166
Author(s):  
Guy Lamarche ◽  
J. M. Langlois ◽  
Maurice Héon
Keyword(s):  
Reticular Formation ◽  
Medulla Oblongata ◽  
Trigeminal Nerve ◽  
Unit Activity ◽  
Recording Unit ◽  
The Face ◽  
Stimulation Of

The projections of the trigeminal nerve in the bulbar reticular formation of the cat have been investigated by recording unit activity after physiological stimulation of the face, in 50 "encéphales isolés" preparations. No somatotopical arrangement was found. The units susceptible to trigeminal afferents are widespread in the reticular formation of the medulla and are responsive to large areas of stimulation, mostly bilaterally symmetrical.

UNIT STUDY OF THE TRIGEMINAL PROJECTIONS IN THE RETICULAR FORMATION OF THE MEDULLA OBLONGATA IN THE CAT

1960 ◽  
Vol 38 (10) ◽  
pp. 1163-1166 ◽  
Author(s):  
Guy Lamarche ◽  
J. M. Langlois ◽  
Maurice Héon
Keyword(s):  
Reticular Formation ◽  
Medulla Oblongata ◽  
Trigeminal Nerve ◽  
Unit Activity ◽  
Recording Unit ◽  
The Face ◽  
Stimulation Of

The projections of the trigeminal nerve in the bulbar reticular formation of the cat have been investigated by recording unit activity after physiological stimulation of the face, in 50 "encéphales isolés" preparations. No somatotopical arrangement was found. The units susceptible to trigeminal afferents are widespread in the reticular formation of the medulla and are responsive to large areas of stimulation, mostly bilaterally symmetrical.

TRIGEMINAL PROJECTIONS IN THE RETICULAR FORMATION OF THE PONS IN THE CAT

1962 ◽  
Vol 40 (1) ◽  
pp. 7-12
Author(s):  
J. M. Langlois ◽  
Guy Lamarche
Keyword(s):  
Reticular Formation ◽  
Trigeminal Nerve ◽  
Unit Activity ◽  
Functional Organization ◽  
Pontine Reticular Formation ◽  
Recording Unit ◽  
Spatial Convergence ◽  
The Face ◽  
High Degree ◽  
Stimulation Of

The projections of the trigeminal nerve in the pontine reticular formation of the cat have been investigated by recording unit activity, after physiological stimulation of the face, in 30 "encéphales isolés" preparations. No somatotopical arrangement was found but a high degree of spatial convergence onto pontine reticular units exists and a certain degree of functional organization was observed.

TRIGEMINAL PROJECTIONS IN THE RETICULAR FORMATION OF THE PONS IN THE CAT

1962 ◽  
Vol 40 (1) ◽  
pp. 7-12 ◽  
Author(s):  
J. M. Langlois ◽  
Guy Lamarche
Keyword(s):  
Reticular Formation ◽  
Trigeminal Nerve ◽  
Unit Activity ◽  
Functional Organization ◽  
Pontine Reticular Formation ◽  
Recording Unit ◽  
Spatial Convergence ◽  
The Face ◽  
High Degree ◽  
Stimulation Of

The projections of the trigeminal nerve in the pontine reticular formation of the cat have been investigated by recording unit activity, after physiological stimulation of the face, in 30 "encéphales isolés" preparations. No somatotopical arrangement was found but a high degree of spatial convergence onto pontine reticular units exists and a certain degree of functional organization was observed.

Localization of Spontaneous Respiratory Neuronal Activities in the Medulla Oblongata of the Cat: A New Location of the Expiratory Center

1957 ◽  
Vol 190 (2) ◽  
pp. 350-355 ◽  
Author(s):  
Edgar Haber ◽  
Kurt W. Kohn ◽  
S. H. Ngai ◽  
D. A. Holaday ◽  
S. C. Wang
Keyword(s):  
Vagus Nerve ◽  
Reticular Formation ◽  
Medulla Oblongata ◽  
Electric Stimulation ◽  
The Other ◽  
Drug Induced ◽  
Other Hand ◽  
Twin Beam ◽  
New Location ◽  
Stimulation Of

Medulla oblongata of 80 vagotomized cats was explored with microelectrodes. Spontaneous respiratory neuronal activities and chest movements were recorded simultaneously with a twin beam cathode ray oscilloscope. It was found that inspiratory discharges are concentrated in the reticular formation between 3 mm rostral and 1 mm caudal to the level of the obex, which corresponds approximately to the inspiratory region of Pitts, Magoun and Ranson. On the other hand, expiratory discharges are not obtained in Pitts' expiratory area, but are found in a circumscribed region in the reticular formation from the level of the obex to 3 mm caudally. Electric stimulation of this region has been found recently by Ngai and Wang to yield marked expiratory spasm. It is concluded that the expiratory center is located caudally to the inspiratory center in the cat. The spontaneous respiratory neuronal discharges continue with no alterations of pattern of firing during drug-induced respiratory paralysis, and are increased both in number and in frequency during CO2 inhalation. Stimulation of the vagus nerve with 50 shocks/sec. reduces inspiratory discharges and prolongs the duration of expiratory discharges.

Unilateral nasal pain with migraine features

Cephalalgia ◽  
2013 ◽  
Vol 33 (12) ◽  
pp. 1055-1058 ◽  
Author(s):  
Mónica Álvarez ◽  
Teresa Montojo ◽  
Beatriz de la Casa ◽  
Lydia Vela ◽  
Juan A Pareja
Keyword(s):  
Trigeminal Nerve ◽  
The Other ◽  
Migraine Pain ◽  
The Face ◽  
Stimulation Of

Background: Migraine attacks exclusively felt in the face are very rare, the pain involving the territories supplied by the second and third branches of the trigeminal nerve. Cases: Two patients suffering from heminasal pain attacks accompanied with typical migrainous features and responsive to oral or intranasal triptans – but not to intranasal lidocaine or oxymetazoline. In one patient, the attacks could be precipitated upon slight touching on the tip of the nose, in the other attacks were preceded by the nasal sensation typically heralding sneezing. Discussion: Migraine pain mostly develops within the innervation territory of the first branch of the trigeminal nerve, which includes the nose. Therefore, episodes of unilateral nasal pain with migrainous features could be considered a migraine with unusual topography (nasal migraine). Painful nasal attacks occasionally preceded by stimulation of trigeminal afferents in the nose, could be conceived of as migraine-tic syndrome.

Acute Brain Swelling Caused by Stimulation of the Reticular Formation of the Medulla Oblongata

Brain Edema ◽  
1985 ◽  
pp. 240-244
Author(s):  
A. Nishimoto ◽  
T. Nishiura ◽  
F. Momma ◽  
T. Murota ◽  
M. Suga ◽  
...  
Keyword(s):  
Reticular Formation ◽  
Medulla Oblongata ◽  
Brain Swelling ◽  
Stimulation Of

Trigemino-Bulbar Reflex Pathways

1957 ◽  
Vol 189 (2) ◽  
pp. 384-388 ◽  
Author(s):  
John D. Green ◽  
Jacob De Groot ◽  
Jerome Sutin
Keyword(s):  
Heart Rate ◽  
Dura Mater ◽  
Trigeminal Nerve ◽  
Cranial Nerves ◽  
Nucleus Ambiguus ◽  
Direct Stimulation ◽  
Reflex Pathways ◽  
The Face ◽  
Vagal Reflex ◽  
Stimulation Of

In decerebrate and decerebellate cats stimulation of any division of the trigeminal nerve induces efferent volleys in the VIIth, Xth, XIth and XIIth nerves. Direct stimulation of the face, internal nares and dura mater produces similar volleys. In uncurarized animals similar stimuli cause twitches of face and neck muscles. Slowing of the heart rate may also be induced. Conduction times measured in the brainstem and cranial nerves show that conduction is very rapid in the brainstem to the level of the obex, so that large medullated fibers may be inferred. At the level of the obex a delay of 2–4 msec. occurs, presumably due to synapses and internuncial neurones. Conduction of the volleys in the Xth and XIth nerves is rapid and large fibers must be involved. Removal of the dorsal vagal nuclei does not abolish the vagal reflex which is presumed to relay at the nucleus ambiguus. The vagal responses are very easily fatigued.

scholarly journals T lymphocyte-dependent B lymphocyte proliferative response to antigen. I Genetic restriction of the stimulation of B lymphocyte proliferation.

1981 ◽  
Vol 153 (4) ◽  
pp. 871-882 ◽  
Author(s):  
H Y Tse ◽  
J J Mond ◽  
W E Paul
Keyword(s):  
T Lymphocytes ◽  
B Lymphocytes ◽  
T Lymphocyte ◽  
Lymphocyte Proliferation ◽  
B Lymphocyte ◽  
Antigen Specificity ◽  
Apparent Lack ◽  
The Face ◽  
Stimulation Of

For the purpose of examining more closely the interaction between T and B lymphocytes, we have developed an in vitro T lymphocyte-dependent B lymphocyte proliferation assay. Proliferation of B lymphocytes in response to antigen was found to depend on the presence of primed T lymphocytes; the B lymphocytes could be derived from nonprimed animals. It appears that these B cells were nonspecifically recruited to proliferate. This nonspecific recruitment, however, was found to be Ir-gene restricted in that B lymphocytes from B10.S mice, which are genetic nonresponders to the polymer Glu60-Ala30-Tyr10 (GAT), could not be stimulated by GAT-primed (responder X nonresponder) F1 T cells. The apparent lack of antigen specificity in the face of Ir gene-restricted T-B interaction may have important implications in our understanding of the recognition unit(s) on T lymphocytes.

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