With you: Human organ systems and their functions
| Freedom of speech essay pdf | A joint or articulation (or articular surface) is the connection made between bones in the body which link the skeletal system into a functional whole. They are constructed to allow for different degrees and types of movement. Some joints, such as the knee, elbow, and shoulder, are self-lubricating, almost frictionless, and are able to withstand compression and maintain heavy loads while still MeSH: D An adult human body consists of about trillion (10 14) cells. The most commonly defined body systems in humans are the nervous, the cardiovascular, the circulatory, the digestive, the endocrine, the immune, the integumentary, the lymphatic, the musculoskeletal, the reproductive, the respiratory, and the urinary digitales.com.au: Hominidae. |
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Human organ systems and their functions Video
Human body organ systems for kids - CompilationHuman organ systems and their functions - your
Humans Homo sapiens are the most populous and widespread species of primates , characterized by bipedality and large complex brains, which has allowed the development of advanced tools , culture and language. Humans create complex social structures composed of many cooperating and competing groups, from families and kinship networks to political states. Social interactions between humans have established a wide variety of values, social norms , and rituals , which bolster human society. Curiosity and the human desire to understand and influence the environment and to explain and manipulate phenomena have motivated humanity's development of science , philosophy , mythology , religion , and other fields of knowledge. Humans evolved from other hominins in Africa several million years ago with the earliest documented representative being Homo habilis. Although some scientists tend to equate humans with all members of the genus Homo , in common usage it refers to Homo sapiens , the only extant member of the subtribe Hominina. Early humans were hunter-gatherers , before settling in the Fertile Crescent and other parts of the Old World , usually near a river or other water source, 10, years ago.Before one can understand how xenobiotics affect these different body components, it's important to understand normal body components and how they function. For this link, this section provides a basic overview of anatomy and physiology as it relates to toxicity mechanisms.
We can think of the basic structure and functional organization of the human body as a pyramid or hierarchical arrangement in which the lowest level of organization the foundation consists of cells and chemicals. Organs and organ organn represent the highest levels of the body's organization Figure 1.
Figure 1. In the animation, an image of each level of structural organization of the body is displayed, beginning with chemicals, then cells, then tissues, then organs, then organ systems, and finally, the organism. Animation 1. The human body consists of eleven organ systems, each of which contains several specific organs.
An organ is a unique anatomic structure consisting of groups of tissues that work in concert to perform specific functions. Table 1 includes the structures and functions of these eleven organ systems. On this page Organ Systems and Organs. Groups of cells with similar structure and function are known as:.
Tissues are groups of cells with similar structure and function.
Organ Systems of the Human Body
There are only four types of tissues: epithelial tissue, connective tissue, muscle tissue, and nerve tissue. Organ systems. The organ system that transports oxygen and nutrients to tissues and removes waste products is the:. The cardiovascular system functions to transport oxygen and nutrients to tissues human organ systems and their functions go here waste products. The primary organs are the heart, blood, and blood vessels. Urinary system. Integumentary system. Cardiovascular system. The organ system that regulates body functions by chemicals hormones is known as the:. The endocrine system ther to regulate body functions by chemicals hormones. It contains several organs including the pituitary gland, parathyroid gland, thyroid gland, adrenal gland, thymus, pancreas, and gonads.
Nervous system.
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Reproductive system. Endocrine system. Barrier to invading organisms and chemicals Temperature control. Skin Hair Subcutaneous tissue. Supports and moves body Protects internal organs Mineral storage Blood formation.
Basic Body Structure and Organization
Bones Cartilage Ligaments Bone marrow. Coordinates activities of other organ systems Responds to sensations. Brain Spinal cord Nerves Eyes Ears. Transports oxygen and nutrients to tissues Removes waste products. Heart Blood Blood vessels. Returns tissue fluid to blood Defends against foreign organisms.
Spleen Lymph nodes Thymus Lymphatic vessels. Lungs Trachea Larynx Nasal cavities Pharynx.]
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