Kenneth Kee

Heart, Functions, Diseases, A Simple Guide To The Condition, Diagnosis, Treatment And Related Conditions (eBook, ePUB)

• Format: ePub

Produktbeschreibung

This book describes Heart, Functions, Diseases, Diagnosis and Treatment and Related Diseases
The heart is the core of the cardiovascular system.
It is a muscular pump of interconnected, branching muscle fibers sited between the lungs with two-thirds of the region to the left of the midline of the body.
It is enveloped by a white fibrous sac called the pericardium which has 2 layers between which is a lubricating fluid permitting the movement of the heart as it contracts and expands.
The inner lining of the sac acts as the outer lining of the heart and is termed the epicardium.
The heart wall has a middle layer termed the myocardium which comprises thick bands of involuntary striated muscular tissue accountable for the heart to pump blood.
A third layer termed the endocardium is a thin layer of flat cells lining the heart valves and the inner cavities of the heart.
The human heart has 4 chambers which are the 2 superior atria and 2 inferior ventricles.
The atria are the reception chambers and the ventricles are the discharge chambers
Deoxygenated blood moves through the heart in one direction, entering through the superior vena cava into the right atrium and is pumped through the tricuspid valve into the right ventricle before being propelled out through the pulmonary valve to the pulmonary arteries into the lungs.
The oxygen is taken in from the air sacs of the lungs.
It enters from the lungs through the pulmonary veins to the left atrium where it is pumped through the mitral valve into the left ventricle before exiting through the aortic valve to the aorta
The heart beat comprises the alternate contractions and relaxations of the atria and ventricles.
The heart beat can be heard in a stethoscope as 2 sounds "lub-dub", the first resulting from the closure of the mitral and tricuspid valves and contraction of the ventricles, the second shorter and snapping sound resulting from the closure of the aortic and pulmonary valves.
The pumping action of the heart is one of contraction or systole and relaxation or diastole.
This is accompanied by a brief rest period.
The rhythm necessitates a balance of calcium, sodium and potassium in the heart muscle.
A normal resting heart rate for adult varies from 60 to 100 beats a minute.
Life and death of a heart muscle cell
My name is Heart Man the cardiac muscle cell.
I was born in the body from a stem cell during the development of the embryo.
During development, myoblasts (the muscle progenitor cells) either remain in the somite to form muscles linked with the vertebral column or migrate out into the body to form all other muscles.
The myoblasts migrate to the heart to form myocardial cells.
We heart cells contain myofibrils which are long chains of sarcomeres the contractile units of muscle cells.
The arrangement of actin and myosin is similar to skeletal striated muscle.
Most of us are Y shaped and are shorter and wider than skeletal muscle cells.
The branching of the our cells help us to communicate with our fellow heart cells easily
Unlike multinucleated skeletal cells, we only have only one or two nuclei.
We also have a high mitochondrial density allowing us to produce ATP quickly making us highly resistant to fatigue
There are 2 types of cells within the heart:
Myocardiocytes
Cardiac pacemaker cells.
We myocardiocytes make up the atria and ventricles
My co-worker Pacermaker Cell carries the impulses responsible for the beating of the heart
Intercalated disks are located between our cardiac muscles cells synchronizing muscle contraction
The heart beats nonstop about 100,000 times every day
I, the cardiac muscle, am nearly completely reliant on oxygen to function
Without oxygen we will die.

TABLE OF CONTENT
Introduction
Chapter 1 Heart
Chapter 2 Functions
Chapter 3 Life Cycle
Chapter 4 Diseases
Chapte...

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Produktdetails

• Verlag: Kenneth Kee
• Erscheinungstermin: 24. Februar 2019
• Englisch
• ISBN-13: 9780463004128
• Artikelnr.: 55436324

Autorenporträt

Dr. Kenneth Kee is a well-known medical doctor from Singapore who has been practicing medicine since 1972.
He graduated from the University of Singapore and furthered his studies with a Master of Science in Health Management in 1991, followed by a Ph.D. in Healthcare Administration in 1993.
Dr. Kee established Kee Clinic in 1974, located in the Holland Drive area of Singapore. The clinic has been a prominent feature of the community, offering general medical services for 5 decades.
Dr Kee also served his country Singapore as a national service police Inspector at night from 1975 to 1985 while working at his clinic during the day.
He had served as a police guard to the Woodland Petroleum Tanks at night during the Indonesian Confrontation period, took part in police rounds at night in the Beach Road area and taught First aid and emergency resuscitation to Police recruits.
He received the Singapore Police Bicentennial 2020 Medallion on 1st March 2024 as recognition for his work in the Singapore Police.
Even as he grew older, Dr. Kee continued to work actively in his clinic, although he eventually reduced his consultation hours.
Beyond his medical career, Dr. Kee is also an author.
He started writing about medical conditions in 2007, using blogs and other online platforms to share his knowledge with a broader audience.
Over time, he published various books, many of which provide simple and accessible guides to different health conditions.
His works include "A Family Doctor's Tale," "My Personal Singapore History," and numerous medical guides, available through platforms like Amazon.
His books often combine his personal experiences as a family doctor with insights into Singapore's healthcare system and history.
Dr. Kee has written extensively on health topics, contributing to both medical literature and general knowledge resources.

Dr. Kenneth Kee has written numerous books, primarily focused on health education and personal experiences as a family doctor. Some of his notable titles include:
"A Family Doctor's Tale"
This book is a blend of Dr. Kee's personal experiences and his reflections on being a family doctor in Singapore. It's a great choice if you're looking for a narrative that combines both medical knowledge and human stories.
"Specialized Medical Conditions"
Books like **"Congestive Heart Failure: Diagnosis and Treatment"** focus on specific conditions, offering in-dept...