Human Body Systems. Regulation and Homeostasis in the Human Body: Overview.
Human body systems general overview
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Transcript of Human body systems general overview
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Friday April 7th, 2017
Today you need• Notebook• Something to write with• Body outline• Glue• Scissors
Objective• Identify the major
organs of each human body system
• Describe the primary function of each body system
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Human Body SystemsHuman Body Systems
An Introduction
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• There are ~ 100 trillion cells in the human body
• Each cell works both independently and as part of the larger body system
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How does the body get so many cells to work together?
Organization•Cells tissues organs organ systems
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• Cells Cells –specialized to perform certain functions
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• Tissues – groups of similar cells that work together
• 4 basic types of tissues in humans:– Epithelial (skin)– Connective (bone, cartilage)– Nervous (neurons)– Muscle
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• Organs – groups of different tissue types that work together
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• Organ Systems – a group of organs that perform closely related functions
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Comparisons• We compared a cell to a factory.• Let’s compare human body systems to…a
football team or a track team• So one cell would be like: _____________• Tissues would be like: ____________• Organs would be like: ____________• Organ systems would be like: __________
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• There are 11 organ systems in the human body
• They all work together to maintain homeostasis
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• Integumentary System:– skin– Protects the body – regulates temperature inside the body
Label the skin on Nelly
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• Respiratory System:– nose, trachea, lungs– Brings in O2 and releases
CO2
Label the lungs and trachea on Nelly
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Human Body Systems
• Digestive System:– mouth, esophagus,
stomach, intestines– Digest food and absorb
nutrients, eliminate waste
Label the stomach on Nelly
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• Excretory/UrinarySystem:
– kidneys, bladder– Eliminates waste
Label the kidneys and bladder on Nelly
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• Skeletal System:– bones, cartilage, ligaments,
tendons– Supports the body, protects
organs
Label the femur on Nelly
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• Muscular System:– skeletal, smooth, and
cardiac muscle– produce movement
Label the deltoid on Nelly
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• Circulatory System:– heart, blood vessels,
blood– Brings needed materials to
cells and removes waste from cells
Label the heart, major arteries and veins on Nelly
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• Endocrine System:– glands – Controls growth and
development
Label the thyroid gland on Nelly
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• Reproductive System:– reproductive organs – Produces sperm or ova
Label the pituitary gland on Nelly
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• Immune System:– white blood cells– Protects the body
from disease
Label the bone marrow on Nelly
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• Nervous System:– brain, spinal cord, nerves– Recognizes stimuli and
helps the body respond
Label the brain and spinal cord on Nelly
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Directions1. Assemble Human Body
Systems book2. For each body, draw the
major organs of the system
3. Fold the body in ½4. On the outside write the
name of the system5. Underneath the body
write the major function(s) of that system
1. Respiratory + Circulatory2. Digestive3. Immune4. Nervous5. Endocrine/Reproductive6. Muscular/Skeletal7. Integumentary/Urinary
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Human Body Systems Book
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Human Body Systems Book
Nervous system Skeletal
system
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Human Body Systems Book
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Human Body Systems Book
Function: