On stopping the administration of thyroid these symptoms again disappear.
When the thyroid gland is absent in children, not only is the expression of the face dull and heavy as in the adult, but the growth both of body and mind is arrested, and the child remains a stunted idiot.
The effect of thyroid gland in such cases is marvellous, the child growing in body and becoming healthy and intelligent.
Iodine has a special interest, as it is a necessary constituent of food, and is present in the secretion of the thyroid gland.
Trans., London, 1893); Notkin, " Nature of Colloid in Thyroid Gland," Arch.
In the case of the thyroid the function of the gland appears to be to prepare a secretion which is poured out into the blood and alters tissue-change.
When the thyroid is hypertrophied, as in Graves's disease, the same symptoms are observed, and these are probably due to increased secretion from the thyroid.
The whole of the secretion here is poured into the blood and not at all on to a mucous surface, and herein the thyroid gland differs largely from such glands as the pancreas or peptic and intestinal glands.
In the normal thyroid there is formed and stored up in the spaces this colloid material.
Hippocrates had no opportunity of verification by necropsy, and Sydenham ignored pathology; yet the clinical features of many but recently described diseases, such, for example, as that named after Graves, and myxoedema, both associated with perversions of the thyroid gland, lay as open to the eye of physicians in the past as to our own.
The larynx has the lateral sacculi well developed, though entirely concealed within the alae of the thyroid cartilage.
One point must not be omitted, namely, the homogeny of the endostyle of Amphioxus and the thyroid gland of Craniata.
The thyroid gland, which is situated in front of the neck, yields a secretion which passes into the blood and there tends to maintain a state of moderate dilatation in the blood-vessels and of oxidization in the tissues, so that the circulation remains good and the body-heat and muscular activity remain well maintained.
Observations were made on the connexion between thyroid gland and myxoedema, which appeared to show that this disease was dependent upon atrophy of the gland.
Under the influence of thyroid gland these symptoms all disappear, and the patient is frequently restored to a normal condition.
When the thyroid tablets or extract of thyroid are given in too large quantities to patients suffering from myxoedema, the symptoms of myxoedema disappear, but in their place appear others indicative of increased metabolism and accelerated circulation.
- Of these the thyroid gland, the suprarenal bodies, the spleen, the bile, the bone marrow, the ovaries and some others have been investigated fully.
The part played by the thyroid body in the internal economy of the organism has also received much attention.
In the wasting of the thyroid gland in myxoedema, or when the gland is completely removed by operation, myxomatous areas are found in the subcutaneous tissue of the skin, nerve-sheaths, &c.
Kidneys, pancreas and the thyroid gland, also in muscle-plasma; " crystalline," a globulin occurring in two forms a and /3, is found in the lens of the eye; " egg-globulin " and " lactoglobulin " occur respectively in the white of egg and in milk.
- Thyroid gland - cystic goitre.