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Human Body (Tissue (Tissue: Group of connected cells that have a similar…
Human Body
Tissue
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Connective tissue: cells that for the body’s structure,Bone and cartilage,Blood
Epithelial tissue: Lining of the inner and outer body surfaces,Skin, lining of digestive tract, Protection, Secretes substances (hormones),Absorbs (nutrients)
Muscle Tissue: cells that can contract
Allows for movement, Smooth, cardiac, skeletal
Nervous Tissue: Neurons (Nerve cells) that carry electrical signals, Brain, spinal cord, nerves
Organs
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Kidneys,The kidneys are two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of the spine. Every day, the two kidneys filter about 120 to 150 quarts of blood to produce about 1 to 2 quarts of urine, composed of wastes and extra fluid.:
Heart: The blood provides your body with the oxygen and nutrients it needs. It also carries away waste. Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs.:
Lungs:The lungs and respiratory system allow oxygen in the air to be taken into the body, while also enabling the body to get rid of carbon dioxide in the air breathed out. Respiration is the term for the exchange of oxygen from the environment for carbon dioxide from the body's cells.
Cells
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Cell Specialization vs. Cell Differentiation
Cell Specialization: When cells have a specific job or role in the human body.
Cell Differentiation: The process of becoming specialized
Without cell differentiation, call specialization cannot happen.
Stem Cells: Cells that can give rise to different, specialized cells
Totipotent Stem Cells: Can become any type of cell in the body and potentially develop into an entire organism
Organ System
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Organs and homoeostasis The process in which organ systems work to maintain a stable internal environment is called homeostasis. ... Respiratory system: A high concentration of carbon dioxide in the blood triggers faster breathing. The lungs exhale more frequently, which removes carbon dioxide from the body more quickly