An Atlas of Erectile Dysfunction by Roger S. Kirby PDF

By Roger S. Kirby

ISBN-10: 0203008928

ISBN-13: 9780203008928

Written by means of Roger Kirby, An Atlas of Erectile disorder, moment variation provides clinicians with easy accessibility to the knowledge they should comprehend the reasons, pinpoint the prognosis, and begin secure and powerful remedy. Dr. Kirby explores the hot, quick adjustments within the knowing of the pathophysiology and the administration algorithms referring to the main applicable and least expensive method of coping with erectile disorder. The atlas comprises diagrams which are truly defined and straightforward to appreciate and amazing illustrations and colour pictures, which makes this atlas a must-read for somebody treating sufferers with struggling with erectile disorder.

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Reflex relaxation of the membranous urethra and rhythmic contraction of the bulbocavernosus muscles result in the pulsatile emission of semen from the urethral meatus 53 Figure 28 An atheroma affecting both common iliac arteries results in vascular insufficiency, a major cause of erectile dysfunction 54 Figure 29 Dynamic infusion cavernosometry and cavernosography show a venous leak (arrowed) into the pelvic veins 55 Figure 30 Deleterious effects of low oxygen (O2) levels on intracorporeal smooth muscle.

Both vasoactive intestinal polypeptide (VIP) and prostaglandin E1 (PGE1) activate AC. Both cGMP and cAMP lower intracellular calcium, thereby triggering smooth muscle relaxation. NO also activates sodium (Na+)/potassium (K+)-channel ATPase, resulting in hyperpolarization of the smooth muscle cell membrane which, in turn, prevents the opening of voltage-dependent calcium channels, thereby reducing intracellular calcium 43 Figure 17 Vasodilatory actions of nitric oxide (NO), prostaglandin E1 and vasoactive intestinal polypeptide (VIP) and the opposing vasoconstrictory effect of norepinephrine on intracorporeal smooth muscle cells.

These support the erect penis and also contract rhythmically at the time of orgasm to facilitate ejaculation 35 Figure 5 Skin overlying the penis is exceptionally mobile and expandable to accommodate the considerable increase in length and girth that occurs during erection. Distally the penile skin is reflected forwards over the glans penis to form the prepuce, before folding back on itself to attach to the corona of the glans penis Figure 6 The pendulous portion of the penis is supported by the suspensory ligament, a fibrous condensation which supports and stabilizes the erect penis.

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An Atlas of Erectile Dysfunction by Roger S. Kirby

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