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Tissues including membranes and glands: types

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Definition A tissue is a group of cells the Usally have a common original in an embryo and function  together to carry out specialized activities. Types of tissues The tissues of the consist of large numbers of cells and they are  classified according to the size, shape and functions of these cells. There are four main types of tissue that each have subdivisions . They are: ¹. Epithelial tissue ². Connective tissue ³. Muscular tissue 4. Nervous tissue 1. Epithelial Tissue It covers body surface and lines hollow organs. Body cavities and ducts. It is allows the body interact with internal and y environment. Epithelial tissue consists of cells arranged in continuous sheets in single or multiple layers. Structure of Epithelial Tissue: Apical surface of an Epithelial cell faces the body surface, body cavity, lumen  of an internal organ recieves cell  secretion. The lateral surfaces of an Epithelial cell facing the adjacent cells on either side may contain tight junctions, d
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Body cavities (शारीरिक गड्डे)

BODY CAVITIES A body cavities is fluid-filled space in multicellular organism other than those of vessels ( such as blood vessels and lymph vessels) .the term usually refers to the space located between an outer covering (epidermis),and the outer lining of the gut cavity internal organs develop. The cavities include: 1. Dorsal body cavity: a.   Cranial cavity:  Enclosed by the skull and contains the brain. b. Spinal canal: Enclosed by the spine and contains the spinal cord. 2. Ventral body cavity:  a. Thoracic cavity: Enclosed by the ribcage and contains the lungs and heat. b. Abdominopelvic cavity: 1. Abdominal cavity: Enclosed by the ribcage and pelvis and contains the kidneys, ureters, stomach, intestines, liver, gallbladder, and pancreas. 2. Pelvis cavity: Enclosed by the pelvis and contains bladder ,anus and reproductive system. Translate: Hindi शारीरिक गड्डे  एक शरीर की गुहाएं वाहिकाओं (जैसे रक्त वाहिकाओं और लिम्फ वाहिकाओं) के अलावा बहुकोशिकीय जीव में द्रव से भरा स्थान है। यह शब्
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System and cavities of the human body

Human body organ systems The human body is made up eleven organ systems that work with one another ( interdependantly ). These systems integumentary system, skeletal system, muscular system lymphatic system, respiratory system, digestive system, nervous system,endocrine system, cardiovascular system, urinary system and reproductive system, we will briefly discuss the major functions of each Organ system below. 1. Integumentary system :  ( Skin, hair, nails ) Forms the external body covering and protects  deeper tissue from injury. Houses cutaneous receptors, sweat glands, oil glands and synthesizes vitamin D. 2. Skeletal system : ( Bones, joints) supports and protects the Organ of the baby. Provides a framework to muscles ( movement ) .bones also store minerals and create blood cells. 3. Muscular system : ( Skeletal muscles ) Maintains posture and produces movement (locomotion ) produces heat. 4. Lymphatic system : (  red bone marrow,thymus, lymphatic vessels thoracic duct, spleen, lym
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