n. any muscle that compresses an organ or causes a hollow organ or part to contract.
Many snakes are non-venomous (e.g. pythons, garter snakes, king snakes, boa constrictors) but may still in?ict painful bites and cause local swelling. Most venomous snakes belong to the viper and cobra families and are common in Asia, Africa, Australia and South America. Victims of bites may experience various effects including swelling, PARALYSIS of the bitten area, blood-clotting defects, PALPITATION, respiratory di?culty, CONVULSIONS and other neurotoxic and cardiac effects. Victims should be treated as for SHOCK – that is, kept at rest, kept warm, and given oxygen if required but nothing by mouth. The bite site should be immobilised but a TOURNIQUET must not be used. All victims require prompt transfer to a medical facility. When appropriate and available, antivenoms should be administered as soon as possible.
Similar management is appropriate for bites and stings by spiders, scorpions, sea-snakes, venomous ?sh and other marine animals and insects.
Bites and stings in the UK The adder (Vipera berus) is the only venomous snake native to Britain; it is a timid animal that bites only when provoked. Fatal cases are rare, with only 14 deaths recorded in the UK since 1876, the last of these in 1975. Adder bites may result in marked swelling, weakness, collapse, shock, and in severe cases HYPOTENSION, non-speci?c changes in the electrocardiogram and peripheral leucocytosis. Victims of adder bites should be transferred to hospital even if asymptomatic, with the affected limb being immobilised and the bite site left alone. Local incisions, suction, tourniquets, ice packs or permanganate must not be used. Hospital management may include use of a speci?c antivenom, Zagreb®.
The weever ?sh is found in the coastal waters of the British Isles, Europe, the eastern Atlantic, and the Mediterranean Sea. It possesses venomous spines in its dorsal ?n. Stings and envenomation commonly occur when an individual treads on the ?sh. The victim may experience a localised but increasing pain over two hours. As the venom is heat-labile, immersion of the affected area in water at approximately 40 °C or as hot as can be tolerated for 30 minutes should ease the pain. Cold applications will worsen the discomfort. Simple ANALGESICS and ANTIHISTAMINE DRUGS may be given.
Bees, wasps and hornets are insects of the order Hymenoptera and the females possess stinging apparatus at the end of the abdomen. Stings may cause local pain and swelling but rarely cause severe toxicity. Anaphylactic (see ANAPHYLAXIS) reactions can occur in sensitive individuals; these may be fatal. Deaths caused by upper-airway blockage as a result of stings in the mouth or neck regions are reported. In victims of stings, the stinger should be removed as quickly as possible by ?icking, scraping or pulling. The site should be cleaned. Antihistamines and cold applications may bring relief. For anaphylactic reactions ADRENALINE, by intramuscular injection, may be required.... bites and stings
Habitat: The plains of northern India, and the warm valleys of the Himalayas from Kashmir to Assam.
English: Blister Buttercup, Celery- leaved Crowfoot.Ayurvedic: Kaandira, Kaandakatu- ka, Naasaa-samvedana, Toyavalli, Sukaandaka.Folk: Jal-dhaniyaa.Action: Fresh Plant—highly acrid, rubefacient, vesicant and toxic; causes inflammation of the digestive tract. Used after drying or as a homoeopathic medicine for skin diseases.
The plant contains anemonin, pro- toanemonin, ranunculine, serotonin and other tryptamine derivatives.Serotonin (5-hydroxytryptamine) is a potent vaso-constrictor. Pro- toanemonin possesses strong antibacterial, antiviral, cytopathogenic and vermicidal properties, and is effective against both Gram-positive and Gramnegative bacteria, similar to penicillic acid. It inhibits the growth of E. coli, Staphylococcus aureus and Candida al- bicans. It inactivates in vitro diptheria toxin.Dosage: Whole plant—1-3 g powder. (CCRAS.)... ranunculus sceleratusStructure of muscle Skeletal or voluntary muscle forms the bulk of the body’s musculature and contains more than 600 such muscles. They are classi?ed according to their methods of action. A ?exor muscle closes a joint, an extensor opens it; an abductor moves a body part outwards, an adductor moves it in; a depressor lowers a body part and an elevator raises it; while a constrictor (sphincter) muscle surrounds an ori?ce, closing and opening it. Each muscle is enclosed in a sheath of ?brous tissue, known as fascia or epimysium, and, from this, partitions of ?brous tissue, known as perimysium, run into the substance of the muscle, dividing it up into small bundles. Each of these bundles consists in turn of a collection of ?bres, which form the units of the muscle. Each ?bre is about 50 micrometres in thickness and ranges in length from a few millimetres to 300 millimetres. If the ?bre is cut across and examined under a high-powered microscope, it is seen to be further divided into ?brils. Each ?bre is enclosed in an elastic sheath of its own, which allows it to lengthen and shorten, and is known as the sarcolemma. Within the sarcolemma lie numerous nuclei belonging to the muscle ?bre, which was originally developed from a simple cell. To the sarcolemma, at either end, is attached a minute bundle of connective-tissue ?bres which unites the muscle ?bre to its neighbours, or to one of the connective-tissue partitions in the muscle, and by means of these connections the ?bre affects muscle contraction. Between the muscle ?bres, and enveloped in a sheath of connective tissue, lie here and there special structures known as muscle-spindles. Each of these contains thin muscle ?bres, numerous nuclei, and the endings of sensory nerves. (See TOUCH.) The heart muscle comprises short ?bres which communicate with their neighbours via short branches and have no sarcolemma.
Plain or unstriped muscle is found in the following positions: the inner and middle coats of the STOMACH and INTESTINE; the ureters (see URETER) and URINARY BLADDER; the TRACHEA and bronchial tubes; the ducts of glands; the GALL-BLADDER; the UTERUS and FALLOPIAN TUBES; the middle coat of the blood and lymph vessels; the iris and ciliary muscle of the EYE; the dartos muscle of the SCROTUM; and in association with the various glands and hairs in the SKIN. The ?bres are very much smaller than those of striped muscle, although they vary greatly in size. Each has one or more oval nuclei and a delicate sheath of sarcolemma enveloping it. The ?bres are grouped in bundles, much as are the striped ?bres, but they adhere to one another by cement material, not by the tendon bundles found in voluntary muscle.
Development of muscle All the muscles of the developing individual arise from the central layer (mesoderm) of the EMBRYO, each ?bre taking origin from a single cell. Later on in life, muscles have the power both of increasing in size – as the result of use, for example, in athletes – and also of healing, after parts of them have been destroyed by injury. An example of the great extent to which unstriped muscle can develop to meet the demands made on it is the uterus, whose muscular wall develops so much during pregnancy that the organ increases from the weight of 30–40 g (1–1••• oz.) to a weight of around 1 kg (2 lb.), decreasing again to its former small size in the course of a month after childbirth.
Physiology of contraction A muscle is an elaborate chemico-physical system for producing heat and mechanical work. The total energy liberated by a contracting muscle can be exactly measured. From 25–30 per cent of the total energy expended is used in mechanical work. The heat of contracting muscle makes an important contribution to the maintenance of the heat of the body. (See also MYOGLOBIN.)
The energy of muscular contraction is derived from a complicated series of chemical reactions. Complex substances are broken down and built up again, supplying each other with energy for this purpose. The ?rst reaction is the breakdown of adenyl-pyrophosphate into phosphoric acid and adenylic acid (derived from nucleic acid); this supplies the immediate energy for contraction. Next phosphocreatine breaks down into creatine and phosphoric acid, giving energy for the resynthesis of adenyl-pyrophosphate. Creatine is a normal nitrogenous constituent of muscle. Then glycogen through the intermediary stage of sugar bound to phosphate breaks down into lactic acid to supply energy for the resynthesis of phosphocreatine. Finally part of the lactic acid is oxidised to supply energy for building up the rest of the lactic acid into glycogen again. If there is not enough oxygen, lactic acid accumulates and fatigue results.
All of the chemical changes are mediated by the action of several enzymes (see ENZYME).
Involuntary muscle has several peculiarities of contraction. In the heart, rhythmicality is an important feature – one beat appearing to be, in a sense, the cause of the next beat. Tonus is a character of all muscle, but particularly of unstriped muscle in some localities, as in the walls of arteries.
Fatigue occurs when a muscle is made to act for some time and is due to the accumulation of waste products, especially sarcolactic acid (see LACTIC ACID). These substances affect the end-plates of the nerve controlling the muscle, and so prevent destructive overaction of the muscle. As they are rapidly swept away by the blood, the muscle, after a rest (and particularly if the rest is accompanied by massage or by gentle contractions to quicken the circulation) recovers rapidly from the fatigue. Muscular activity over the whole body causes prolonged fatigue which is remedied by rest to allow for metabolic balance to be re-established.... muscle
Herbal antihistamines may lessen severity of symptoms. Not limited by sedative, anticholinergic or central nervous system side effects. Nor do they impair psychomotor skills or potentiate the effect of alcohol. Non-sedating antihistamines are available for perennial allergic rhinitis, conjunctivitis and other conditions normally responsive to antihistamines including allergic skin reactions.
Garlic has powerful antihistamine properties. It is a vaso-constrictor and thus reduces swelling of mucosa of the nose and conjunctiva of the eye. It is of special value for purulent discharge. According to the individual case it works well with Hyssop, Angelica and Peppermint. Herbal antihistamines include: Juniper, Marshmallow root, Burdock, Parsley root, Cudweed, Elder, Ephedra, Eyebright, Echinacea, Goldenseal, Peppermint, Sage, Lobelia, Chaparral. One in common use among herbalists is Marigold (calendula), directed particularly against staphylococcus.
Ayurvedic Medicine, specific: equal parts Ginger root, Black Pepper and Aniseed. ... antihistamines
Action: vaso-constrictor, vein-tonic, antiseptic, aromatic, antispasmodic, sedative, diuretic.
Use s: varicose veins, oedema, piles, menopausal cramps, leg-cramp, intermittent claudication. Incontinence and frequency of urine.
Preparation. Tincture: 1 part cone shavings to 5 parts 60 per cent alcohol; macerate 14 days, strain. Dose: 5-30 drops in water thrice daily before meals. Traditional remedy: no longer taken internally. Aromatherapy: 10 drops in 2 teaspoons Almond oil for massage lower abdomen or limbs according to condition. ... cypress
Constituents: flavonoids, iridoids including rutin, diterpenes.
Action: antispasmodic, laxative, diaphoretic, emmenagogue, vaso-constrictor. (Simon Mills) Nerve and heart sedative. Hypotensive. Action similar to Valerian. (Dr Rudolf F. Weiss) Cardiotonic.
Uses: angina on effort, simple uncomplicated heart conditions to enhance exercise duration; tachycardia from hyperactive thyroid, hypertension, absent or painful menstruation (hence its name), menopausal flushes, schizophrenic tendency, pre-menstrual tension.
“Drink Motherwort tea and live to be a source of continuous astonishment and frustration to waiting heirs.” (Old saying)
Not given in pregnancy.
Combines well with Vervain (equal parts) for relaxing nervine.
Practitioner combinations: Menstrual disorders, equal parts: Black Cohosh, Cramp bark, Motherwort. Heart disorders: Motherwort 1; Hawthorn 1; Lily of the Valley half.
Benzodiazepine addiction to assist withdrawal: equal parts, Motherwort, Skullcap and Valerian. Infusions, extracts or tinctures.
Preparations: Thrice daily.
Tea: 1-2 teaspoons to each cup boiling water; infuse 15 minutes. Half-1 cup.
Tea combination: equal parts, Motherwort, Balm and Lime flowers. 2 teaspoons to cup boiling water: infuse 15 minutes, 1 cup thrice daily. Angina and heart symptoms – to ameliorate.
Liquid Extract: 1:1, 25 per cent alcohol. Dose: 2-4ml (30-60 drops).
Tincture: 1:5, 25 per cent alcohol. Dose: 5-10ml (1-2 teaspoons).
Powders. 2 to 4g.
Tablets/capsules. Popular combination. Powdered extract Motherwort 4:1 – 50mg. Powdered Passion flower BHP (1983) – 90mg. Powdered extract Lime flowers 3:1 – 67mg. For a calming and sedating effect in stressful situations and insomnia. (Gerard House)
Note: Motherwort needs to be taken for weeks. ... motherwort
There are more than 600 muscles in the body, classified according to the type of movement they produce.
An extensor opens out a joint, a flexor closes it; an adductor draws a part of the body inwards, an abductor moves it outwards; a levator raises it, a depressor lowers it; and constrictor or sphincter muscles surround and close orifices.... muscular system
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