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What is Bone? Explain the Classification of bone.

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What is BONE? Bone is a rigid, highly vascular, dynamic, constantly changing, mineralized connective tissue. It gives characteristic form to the human body. It also gives support to human body. Classification Of Bones: Bones can be classified as following: Developmental Classification Structural Classification Regional Classification According to size and shape. Developmental Classification: This classification includes 3 types: Intramembranous:  In this type the embryonic mesenchyme directly differentiate into bony tissues. It usually occurs in embryo. The characteristic of this type of bone formation is its rapidity of formation, e.g., Bones of the vault of the skull Bones of the face Clavicle. Intracartilagenous:   In it, firstly cartilagenous model of bone is formed which later on transforms into bony tissues. For example, All long bones of the body except clavicle Short bone Irregular bones Membrano-cartilagenous:  At the junction of vault and base of skull the bone...
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Explain Biopsychosocial model? Write down its clinical application.

  Health Care Models Bio-Psycho-Social model of health and disease The Integrated Model of health care The Public Health Care Model 1. Bio-Psycho-Social Model: In 1977, George Engel theorised the importance of integrating the traditional biological aspects of medicine with the behavioural sciences.  Engel's BPS model was based on three principles:   Disease is a result of multiple factors that interact to make an individual feel ill.   An individual that is composed of a complex , integrated system composed of interacting subsystem elements of mind, body and spirit.   Biological, Psychosocial, and social factors form a triad to interact and serve as determinants of disease. He proposed that the biological, psychological and social systems work together to cause disease. Biological System:   The biological system ensures a structural , biochemical and a molecular study of a disease. Psychological System:   The psychological system provides insi...
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Write a note on the physiology of the cardiac muscle. Also explain the phases of cardiac muscle action potential?

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  HEART: Heart contains two pumps:  a right heart that pumps blood through the lungs,   a left heart that pumps blood through the systemic circulation provides blood flow to the organs and tissues of the body.  Heart contains two chambers ; Atrial and Ventricles. Cardiac rhythmicity:   Special mechanisms in the heart cause a continuing succession of heart contractions . https://pixabay.com/vectors/human-heart-pumping-care-medicine-41546/ Physiology Of Cardiac Muscle: The heart is composed of three major types of cardiac muscle: Atrial muscle, Ventricular muscle and specialized excitatory and conductive muscle fibers. Cardiac muscles are actually Skeletal muscles. They have many similarities and differences. Simmilarities: The cardiac muscle is striated just like skeletal muscle. Cardiac muscle has typical myofibrils that contain actin and myosin filaments almost identical to skeletal muscle. These filaments lie side by side and slide during contracti...
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