In this article we will discuss about:- 1. Introduction to Reticulo-Endothelial 2. Classification, Varieties and Distribution of Reticulo-Endothelial Cells 3. Functions. Introduction to Reticulo-Endothelial: It has been known for many years that if a vital dye (viz., Trypan blue, Lithium carmine, etc.) be injected into a living animal, certain cells engulf the dye particles, whereas […]
Reticulo-Endothelial (Macrophages): Classification & Functions | Biology
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Characteristics of Skeletal, Smooth & Cardiac Muscles | Humans | Biology
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In this article we will discuss about the characteristics of skeletal, smooth and cardiac muscles of human body. Characteristics of Skeletal Muscle: Histology: 1. Size and Shape: Cylindrical; 1-40 mm long, 10 to 100 μ in diameter. 2. Striations: Transverse, longitudinal. 3. Sarcolemma: Present and complete. 4. Nucleus: Multiple, just under the Sarcolemma. 5. Sarcotubular […]
Smooth Muscles: Properties and Factors | Humans | Biology
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In this article we will discuss about the properties and factors affecting the activity of smooth muscles in human body. Properties of Smooth Muscles: Broadly speaking, properties of the smooth muscle are same as those of the skeletal muscle, with the following differences: i. Excitability and Contractility: Smooth muscle is less excitable. Contraction is slow, […]
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