muscle

PELVIC MUSCLE

THE PELVIC FLOOR MUSCLES ARE:- 1) CREMASTOR    Origin : From inguinal ligament.   Insertion : Around spermatic cord and the testis .   Action : Elevation of testis. Nerve supply : Genitofemoral nerve. 2) DARTOS  Origin : Penis and the subcutaneous connective tissue of scrotum. Insertion : Skin of scrotum and penis. Action : …

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CHEST MUSCLES

1) PECTORALIS MAJOR   Origin : FROM – Anterior medial half of clavicle. – Half of manubrium and sternum. – costal cartilage ( second to sixth ).    Insertion : ON – Lateral lip of bicipital groove.   Action : MAINLY – Adduction and medial rotation of shoulder – Flexion of arm . Nerve supply: – Medial and …

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ELECTROMYOGRAM AND DISORDER OF SKELETAL MUSCLE

INTRODUCTION   – The study of electrical activity of the muscle is called Electromyography. – The graphical representation of electrical activity of muscle is called Electromyogram.   • Electromyography Technique : -Electromyogram is recorded by the use of cathode ray oscilloscope or a polygraph. – Electrodes used in this technique are ; (1) Surface electrode …

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SMOOTH MUSCLE

INTRODUCTION   – Smooth muscle are voluntary and non-striated. – Present in almost all the organs as bundles or sheaths. – This forma a major contractile tissues of various organs .   * Smooth muscle fibers are present in following structures ; – Wall of esophagus , stomach and intestine. – Duct of digestive gland. …

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