Word Finder - cerebral

definition

Of, or relating to the brain, cerebrum, or cerebral cortex.

definition

Intellectual rather than emotional.

The skull is abnormally thick and the cerebral capacity small.

The eyes are indicated as black dots behind the cerebral ganglia.

Cerebral spinal fluid bathes the brain and spinal cord.

The figure B also shows the peculiar neural investiture formed by the cerebral arteries in Limulus and the derivation from this of the arteries to the limbs, III, IV, VI, whereas in Scorpio the latter have a separate origin from the anterior aorta.

In some Lamellibranchs the osphradial ganglia receive nerve-fibres, not from the visceral ganglia, but from the cerebral ganglia along the visceral commissure.

In a given case of anasarca due to a cause acting generally, it will be found that the liquid of the pleural cavity always contains the highest percentage of proteid, that of the peritoneal cavity comes next, that of the cerebral ventricles follows this, and the liquid of the subcutaneous areolar tissue contains the lowest.

The results of these experimental researches by many inquirers into the constitution of the brain have transformed our conceptions of cerebral physiology, and thrown a flood of light on the diseases of the brain.

The cerebral hemispheres in existing Ungulates are well convoluted.

They are innervated from the cerebral ganglia.

A cerebral angiogram is a study of the blood vessels in the brain.

In all Chaetopods this system consists of cerebral ganglia connected by a circumoesophageal commissure with a ventral ganglionated cord.

The cerebral ganglia constitute an archicerebrum for the most part, there being no evidence that, as in the Arthropoda, a movement forward of post-oral ganglia has taken place.

Each renal organ is a sac lined with glandular epithelium (ciliated cell, with concretions) communicating with the exterior by its papilla, and by ce, Cerebral ganglia.

Farther up, within the velar area, the rudiments of the cerebral nerve-ganglion ng are seen separating from the ectoderm.

This opinion, added to the desire which he had of himself presiding over the council, induced him to recall the fathers from Germany, whither his health, impaired of late, probably owing to a cerebral congestion, rendered it all the more difficult for him to go.

It is possible, as maintained by some writers (Patten and others), that the lobes of the cerebral nervous mass in Arach nids indicate a larger number of prosthomeres as having fused in this region, but there is no embryological evidence at present which justifies us in assuming the existence in Arachnids of more than two prosthomeres.

The cerebral mass is in Limulus more easily separated by dissection as a median lobe distinct from the laterally placed ganglia of the cheliceral somite than is the case in Scorpio, but the relations are practically the same in the two forms. Formerly it was supposed that in Limulus both the chelicerae and the next following pair of appendages were prosthomerous, as in Crustacea, but the dissections of Alphonse Milne-Edwards (6) demonstrated VI FIG.

Every higher vertebrate animal possesses the power of forming for itself a series of cerebral mechanisms or reasoned conclusions based on its individual experience, in proportion as it has a large cerebrum and has got rid of or has acquired the power of controlling its inherited instincts.

Anteriorly these chords embrace the oesophagus and unite with the cerebral mass which innervates the pair of eyes when present.

Death is due either to weakness and emaciation (in chronic cases), or to blocking of the cerebral capillaries by the parasites (where these are abundant), or to disorganization of the nervous system (paraplegic and sleepingsickness cases).

But it has since been discovered that in the Protobranchia the cerebral ganglia and the pleural are distinct, each giving origin to its own connective which runs to the pedal ganglion.

The perioesophageal nerve-ring of Chaetopoda and Arthropoda is represented, not by the collar first mentioned in the above description, but by the commissures connecting the cerebral and pedal ganglia.

He also studied the colouring matters of leaves and flowers, the composition of bone, cerebral matter and other animal substances, and the processes of fermentation, in regard to the nature of which he was an opponent of Pasteur's views.

The cerebral ganglion also gives off a nerve on each side to a pair of small ganglia, united by a median commissure, which have sunk into and control the muscles of the head.

The next change took place in the central provinces; the ra-tags were altered into cerebral dentals, and the ya-tags became c. Later on the superscribed letters and finals d and s disappeared, except in the east and west.

The cerebral convolutions remain unaffected, but the important centres of the medulla oblongata are stimulated.

The four cords are all connected anteriorly with the cerebral commissure which lies above the buccal mass anteriorly.

From the points where the cords meet the cerebral commissure, arise on each an anterior labial commissure and a stomatogastric commissure.

In front of the buccal mass is a median cerebral ganglion.

There are two closely connected cerebral ganglia, from which arise the usual two pairs of nerve cords.

A small stomatogastric commissure bearing two small ganglia arises from the cerebral ganglia and surrounds the oesophagus.

In large doses the action of digitalis on the circulation causes various cerebral symptoms, such as seeing all objects blue, and various other disturbances of the special senses.

A pit or depression, known as "the cerebral organ," opens into the brain just above the mouth; this usually divides into two limbs, which are deeply pigmented and have been called eyes.

When, for instance, the axons of the ganglion cells of the retina are severed by section of the optic nerve, and thus their influence upon the nerve cells of the visual cerebral centres is set aside, the nerve cells of those centres undergo secondary atrophy (Gadden's atrophy).

It had been held that the branches of the g3 Activity end is played upon by other neurons - spinal, cerebral and cerebellar.

The motor cells of the extensor muscles, when preoccupied by cerebral influence, appear refractory.

The excitable foci of the cerebral cortex are well myelinated long before the unexcitable are so.

The organ seems also to receive many fibres from the parietal region of the cerebral hemisphere.

This condition is more than usually readily induced when the cerebral hemispheres have been removed.

Suspension of cerebral influence exists even more markedly, of course, when the cerebral hemispheres have been ablated.

The stuporose condition is the result of exhaustion after the long period of cerebral excitement.

Prostration and cerebral symptoms are particularly marked; the temperature rises rapidly and very high.

The treatment of plague is still symptomatic. The points requiring most attention are the cerebral symptoms - headache, sleeplessness, delirium, &c. - and the state of the heart.

There are two pairs of specialized cerebral nerves innervating the praeoral lobe, and provided with peripheral ganglia placed near the termination of the smaller branches.

In addition to the cerebral eyespot there are large numbers of minute black pigmented bodies beside and below the central canal of theneuro chord, commencing from the level of the third myotome.

The pedal ganglia and auditory organs have disappeared with the foot, at all events have never been detected; the cerebral ganglia are very minute, while the parieto-splanchnic are well developed, and constitute the principal part of the nervous system.

According to Spengel, the pair of ganglia near the mouth, variously called labial or cerebral, represent the cerebral pair and pleural pair of a gastropod combined, and the parietosplanchnic pair correspond to the visceral ganglia, the commissure which connects them with the cerebro-pleural representing the visceral commissure.

When this continues for a length of time it tends by itself to cause deterioration of the blood-vessels and leads to death either by cerebral apoplexy or by cardiac failure.

Ricardo died on the nth of September 1823, at his seat (Gatcomb Park) in Gloucestershire, from a cerebral affection resulting from disease of the ear.

He was admitted to Leeds general infirmary where he underwent surgery to remove a cerebral abscess.