Physiology of Vision

Physiology of Vision

Physiology of Vision The rods and cones are two types of photoreceptors that help in transducing light rays into the receptor potential. The retina of each eye contains about 6 …

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Peripheral Nervous System

Peripheral Nervous System

Introduction The two principle divisions of the nervous system are the central nervous system (CNS) and peripheral nervous system (PNS). The CNS consists of brain and spinal cord, integrates and …

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Classification of Joints

Classification of Joints

Arthrology: It is the branch of science concerned with the study of anatomy, function, dysfunction, and treatment of joints and articulations. Joint (Articulation): It is a point of contact between …

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Skin: Structure and Function

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Introduction The human skin is the outer covering of the body. In humans, it is the largest organ of the human body. The integumentary system helps to maintain a constant …

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Physiology of Kidneys

Urinary System

Physiology of Kidneys Kidneys from urine by filtration and secretion of waste materials from the blood. In addition, the selective reabsorption by tubular cells contributes to the maintenance of homeostasis …

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Urinary System: Anatomy, Structure, Function

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Introduction For body cells to function effectively, their environment should be maintained relatively constant (homeostasis). Continuous working of cells necessitates utilization of nutrients (glucose) and oxygen and results in the …

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Tissues of the Human Body

Tissues of the Human Body

Tissues of the Human Body Introduction A tissue is a group of cells having a common embryonic origin that functions together to carry out specialized activities. Tissues may be hard …

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Forms of Intracellular Signaling

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Forms of Intracellular Signaling Introduction Cell signaling is part of any communication process that governs the basic activities of cells and coordinates cell actions. It is the ability of cells …

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Types of Receptors

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Types of Receptors Definition Receptors are chemical signal-receiving protein molecules found inside or on the surface of the target cell. Signaling cells send out chemical signals in the form of …

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Feedback Mechanism- Definition and Types

feedback mechanism

Definition A feedback mechanism is a cycle of events in which the status of a body condition is monitored, evaluated, changed, re-monitored, re-evaluated, and so on. Each monitored variable, such …

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Hypnotics and Sedatives

Hypnotics and Sedatives

Hypnotics and Sedatives Sleep is a naturally occurring phenomenon. Though there are controversies regarding why, how, and what about sleep but the necessity of adequate sleep is universally accepted. Sleep …

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Guar gum

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Synonyms: Guar flour, Jaguar gum Biological Source: Guar gum is the powder of endosperm of seeds of Cyamopsis tetragonolobus Linn. belonging to family Leguminosae. Geographical Source: The plants are cultivated …

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