Cells, Tissues, Organs, and Systems

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by amanda56785
Last updated 4 years ago

Human Anatomy

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Cells, Tissues, Organs, and Systems

Cells, Tissues, Organs, Systems

Five Different Kinds of Cells

Five Different Systems

Four Basic Types of Tissue

How are cells, tissues, organs, and systems all related to each other?If we didn't have cells, we couldn't have tissues. Without tissues, we have no organs. And without our organs, we wouldn't have systems. They all make up the whole human body.

1)Bone Cells2) Cartilage Cells3) Nerve Cells4) Epithelial Cells5) Muscle Cells

Brain- The human brain is the body's control center, receiving and sending signals to other organs through the nervous system and through secreted hormones.Heart- a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers, with two atria and two ventricles.Kidney- each of a pair of organs in the abdominal cavity of humans, excreting urine.Liver- a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes.Lungs- each of the pair of organs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood and carbon dioxide be removed.

•Glandular epithelium secretes hormones or other products such as stomach acid, sweat, saliva, and milk. •Loose connective tissue holds structures together. For example, loose connective tissue holds the outer layer of skin to the underlying muscle tissue. This tissue is also found in your fat layers, lymph nodes, and red bone marrow.•Fibrous connective tissue also holds body parts together, but its structure is a bit more rigid than loose connective tissue. Fibrous connective tissue is found in ligaments, tendons, cartilage, and bone.•Neurons are the basic structural unit of the nervous system. Each cell consists of the cell body, dendrites, and axon. •Neuroglia, or glial cells, provide support functions for the neurons, such as insulation or anchoring neurons to blood vessels.

Five Different Organs in the Human Body

Endocrine- The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, metabolism, and sexual development and function.Digestive- The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. Skeletal- The skeletal system performs vital functions support, movement, protection, blood cell production, calcium storage and endocrine regulation that enable us to move through our daily lives.Circulatory- The circulatory system functions in the delivery of oxygen, nutrient molecules, and hormones and the removal of carbon dioxide, ammonia and other metabolic wastes. Capillaries are the points of exchange between the blood and surrounding tissues.Nervous- The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts.(Pictures at bottom of poster)


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