Frontal Lobe: From 2 Different Sources
The anterior part of the cerebral hemisphere as far back as the central sulcus. It contains the motor cortex and the parts of the brain concerned with personality, behaviour and learning. (See BRAIN.)
the anterior part of each cerebral hemisphere (see cerebrum), extending as far back as the deep central sulcus (cleft) of its upper and outer surface. Immediately anterior to the central sulcus lies the motor cortex, responsible for the control of voluntary movement; the area further forward – the *prefrontal lobe – is concerned with behaviour, learning, judgment, and personality.
Describing the anterior part of a body or organ.... frontal
The term applied to the larger divisions of various organs, such as to the four lobes of the LIVER, the three lobes of the right and the two lobes of the left lung, which are separated by ?ssures from one another (see LUNGS), and to the lobes or super?cial areas into which the BRAIN is divided. The term lobar is applied to structures which are connected with lobes of organs, or to diseases which have a tendency to be limited by the boundaries of lobes, such as lobar PNEUMONIA.... lobe
The operation of cutting out a lobe of the lung in such diseases as abscess of the lung and bronchiectasis and carcinoma (see LUNGS, DISEASES OF).... lobectomy
Lobelia inflata. N.O. Campanulaceae.
Synonym: Indian Tobacco, Pukeweed, Emetic Weed.
Habitat: North America ; cultivated in Salt Lake City.
Features ? A biennial herb, in height from twelve to eighteen inches, the stem is angular and slightly hairy. One to three inches long, the leaves are alternate, sessile, and ovate-lanceolate, with small, whitish glands on the edge. The fruit is in the form of a flat, oval capsule, which contains ovate-oblong seeds about one eighth of an inch long, brown in colour, with a reticulated, pitted surface. The root is fibrous, and the plant bears a small blue, pointed flower. The taste is burning and acrid like tobacco, the odour slight. Part used ? Herb and seeds are used.
Action: Emetic, stimulant, antispasmodic, expectorant, and diaphoretic.
Lobelia inflata has for many years been one of the most widely discussed and hotly debated articles used in medicine. While many herbalists contend that it is the most valuable of all botanic remedies, official medicine in England classifies it as a poison. Herbalists who use Lobelia insist that it is most certainly not a poison, and that it can be administered by them in large doses with perfect safety. They use it chiefly as an emetic, and, as its administration brings about the prompt removal of accumulations of mucus, the action in bronchial complaints is speedy and beneficial. Coffin's comments in this connection are enthusiastic ? "Lobelia is decidedly the most certain and efficient emetic known, and is at the same time safe in its operations. Unlike most emetics from the mineral kingdom, it produces its specific effect without corroding the stomach or producing morbid irritation and inflammation of the mucous membrane of this organ, which are so common in the use of antimony, zinc, and the sulphate of copper. Lobelia may emphatically be said to 'operate in unison with the laws of life'."In view of the controversy surrounding its use, the history of Lobelia is interesting. North American Indians had apparently long been acquaintedwith its properties, but its first introduction to general use was due to the efforts of the famous American, Samuel Thomson. His disciple, Dr. Coffin, brought the herb to this country and used it extensively in his practice for over forty years, apparently with great success "in almost every form of disease, and from the tender infant to the aged," to quote Coffin himself. In both America and Britain herbalists have been tried on charges of causing death by administering Lobelia, but in no instance has a verdict been obtained against them.... lobelia
The bone which forms the forehead and protects the frontal lobes of the brain. Before birth, the frontal bone consists of two halves, and this division may persist throughout life – a deep groove remaining down the centre of the forehead. Above each eye is a heavy ridge in the bone, most marked in men; behind this, in the substance of the bone, is a cavity on each side (the frontal sinus) which communicates with the nose. CATARRH in these cavities produces the frontal headache characteristic of a ‘cold in the head’, and sometimes infection develops known as SINUSITIS (see NOSE, DISORDERS OF).... frontal bone
One of the airspaces that form the paranasal sinuses (see SINUS) within some of the frontal bones of the skull. These sinuses are lined with mucous membrane and open into the nasal cavity.... frontal sinus
A major section of each cerebral hemisphere (see BRAIN). The two lobes lie under the parietal bones and contain the sensory cortex.... parietal lobe
Part of the cerebral cortex in each hemisphere of the BRAIN. Areas of the temporal lobe are involved in the understanding of sound and spoken language.... temporal lobe
More accurately called complex partial seizures, this is a type of EPILEPSY in which the abnormal cerebral activity originates in the temporal lobe of the BRAIN. It is characterised by hallucinations of smell and sometimes of taste, hearing, or sight. There may be disturbances of memory, including déjà vu phenomena. AUTOMATISM may occur, but consciousness is seldom lost.... temporal lobe epilepsy
An operation to cut out one of the lobes of a lung, usually to remove a cancerous tumour.... lobectomy, lung
diagonal creases across the ear lobes, which have a statistically significant correlation with coronary atheroma. The reason is unknown.... ear-lobe creases
the region of the brain at the very front of each cerebral hemisphere (see frontal lobe). The functions of the lobe are concerned with emotions, memory, learning, and social behaviour. Nerve tracts in the lobe are cut during the operation of prefrontal *leucotomy.... prefrontal lobe
one of the lobes of the *liver.... quadrate lobe
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