Berne & Levy Physiology

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Adı:
Berne & Levy Physiology
Baskı tarihi:
30 Mart 2017
Sayfa sayısı:
880
Format:
Karton kapak
ISBN:
978-0323393942
Kitabın türü:
Dil:
İngilizce
Yayınevi:
Elsevier
Berne & Levy Physiology has long been respected for its scientifically rigorous approach - one that leads to an in-depth understanding of the body’s dynamic processes. The long-awaited 7th Edition by Drs. Bruce M. Koeppen and Bruce A. Stanton, continues this tradition of excellence. With integrated coverage of biophysics and neurophysiology, key experimental observations and examples, and full-color design and artwork, this mid-size text is "just right" for a strong understanding of this complex field.

An organ system-based approach clearly describes all of the mechanisms that control and regulate bodily function.
Key experimental observations and examples provide a rich understanding of the body's dynamic processes.
Student Consult access allows you to view the complete contents of the book online, anywhere you go, perform quick searches, tap into relevant bonus content from other Student Consult titles, test your understanding with USMLE-stylesss review questions, add your own notes and bookmarks, and much more.
More "In the Clinic" and "At the Molecular Level" boxes help readers better understand and apply what they’ve learned.
New coverage includes expanded discussions of gut and lung microbiota,; the limbic system; the hypthalamus and control of food intake; cardiac and vascular function curves during exercise; new aspects of lipid absorption; GI and metabolic consequences of bariatric surgery, the role of innate lymphoid cells in defense of the respiratory system, molecular mechanisms in normal and pathological muscle contraction; arterial pulse changes with age and the ankle-brachial index; regulation of the blood-brain barrier and cerebral blood flow; the regulation of phosphate; and thyroid hormone mechanism of action.
Each chapter begins with an all-new bulleted list of questions and ends with key concepts covered in that chapter.
Kitaba henüz inceleme eklenmedi.
Alterations in extracellular [K+] can significantly change membrane voltage. Hypokalemia causes hyperpolarization, and hyperkalemia causes depolarization. In contrast, because sodium (Na) conductance is so small in the resting cell, changes in extracellular [Na+] do not significantly affect membrane voltage.
Wolff-Parkinson-White syndrome, a congenital disturbance, is the most common clinical disorder in which a bypass tract of myocardial fibers becomes an accessory pathway between the atria and ventricles. Ordinarily, the syndrome causes no functional abnormality. The disturbance is easily detected on an ECG because a portion of the ventricle is excited via a bypass tract before the remainder of the ventricle is excited via the AV node and the His-Purkinje system. This preexcitation appears as a bizarre configuration in the ventricular (QRS) complex of the ECG.
The autonomic nervous system controls various aspects of cardiac function, such as the heart rate and contraction strength. However, cardiac function does not require intact innervation. Indeed, a patient with a cardiac transplant, whose heart is completely denervated, may still adapt well to stressful situations. The ability of a denervated, transplanted heart to adapt a changing conditions lies in certain intrinsic properties of cardiac tissue, especially its automaticity (the ability to initiate its own beat).
Regions of the heart other than the SA node may initiate beats in special circumstances. Such sites are called "ectopic foci or ectopic pacemakers". Ectopic foci may become pacemakers when (1) their own rhythmicity becomes enhanced, (2) the rhythmicity of the higher order pacemakers becomes depressed, or (3) all conduction pathways between the ectopic focus and regions with greater rhythmicity become blocked. Ectopic pacemakers may act as a safety mechanism when normal pacemaking centers fail.
Tetrodotoxin (which blocks the fast Na+ current) has no influence on the SA nodal action potential because the action potential upstroke is not produced by an inward Na+ current through fast channels. Thus tetrodotoxin has no effect on cells that exhibit the slow response.
Voltage-activated sodium channels can be blocked by the puffer fish tetrodotoxin. In addition, many drugs used to treat cardiac rhythm disturbances (cardiac arrhythmias) act by blocking these fast sodium channels.

Kitabın basım bilgileri

Adı:
Berne & Levy Physiology
Baskı tarihi:
30 Mart 2017
Sayfa sayısı:
880
Format:
Karton kapak
ISBN:
978-0323393942
Kitabın türü:
Dil:
İngilizce
Yayınevi:
Elsevier
Berne & Levy Physiology has long been respected for its scientifically rigorous approach - one that leads to an in-depth understanding of the body’s dynamic processes. The long-awaited 7th Edition by Drs. Bruce M. Koeppen and Bruce A. Stanton, continues this tradition of excellence. With integrated coverage of biophysics and neurophysiology, key experimental observations and examples, and full-color design and artwork, this mid-size text is "just right" for a strong understanding of this complex field.

An organ system-based approach clearly describes all of the mechanisms that control and regulate bodily function.
Key experimental observations and examples provide a rich understanding of the body's dynamic processes.
Student Consult access allows you to view the complete contents of the book online, anywhere you go, perform quick searches, tap into relevant bonus content from other Student Consult titles, test your understanding with USMLE-stylesss review questions, add your own notes and bookmarks, and much more.
More "In the Clinic" and "At the Molecular Level" boxes help readers better understand and apply what they’ve learned.
New coverage includes expanded discussions of gut and lung microbiota,; the limbic system; the hypthalamus and control of food intake; cardiac and vascular function curves during exercise; new aspects of lipid absorption; GI and metabolic consequences of bariatric surgery, the role of innate lymphoid cells in defense of the respiratory system, molecular mechanisms in normal and pathological muscle contraction; arterial pulse changes with age and the ankle-brachial index; regulation of the blood-brain barrier and cerebral blood flow; the regulation of phosphate; and thyroid hormone mechanism of action.
Each chapter begins with an all-new bulleted list of questions and ends with key concepts covered in that chapter.

Kitap istatistikleri