human body systems general overview
TRANSCRIPT
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
Human Body SystemsHuman Body Systems
An Introduction
• There are ~ 100 trillion cells in the human body
• Each cell works both independently and as part of the larger body system
How does the body get so many cells to work together?
Organization•Cells tissues organs organ systems
• Cells Cells –specialized to perform certain functions
• Tissues – groups of similar cells that work together
• 4 basic types of tissues in humans:– Epithelial (skin)– Connective (bone, cartilage)– Nervous (neurons)– Muscle
• Organs – groups of different tissue types that work together
• Organ Systems – a group of organs that perform closely related functions
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: __________
• There are 11 organ systems in the human body
• They all work together to maintain homeostasis
• Integumentary System:– skin– Protects the body – regulates temperature inside the body
Label the skin on Nelly
• Respiratory System:– nose, trachea, lungs– Brings in O2 and releases
CO2
Label the lungs and trachea on Nelly
Human Body Systems
• Digestive System:– mouth, esophagus,
stomach, intestines– Digest food and absorb
nutrients, eliminate waste
Label the stomach on Nelly
• Excretory/UrinarySystem:
– kidneys, bladder– Eliminates waste
Label the kidneys and bladder on Nelly
• Skeletal System:– bones, cartilage, ligaments,
tendons– Supports the body, protects
organs
Label the femur on Nelly
• Muscular System:– skeletal, smooth, and
cardiac muscle– produce movement
Label the deltoid on Nelly
• 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
• Endocrine System:– glands – Controls growth and
development
Label the thyroid gland on Nelly
• Reproductive System:– reproductive organs – Produces sperm or ova
Label the pituitary gland on Nelly
• Immune System:– white blood cells– Protects the body
from disease
Label the bone marrow on Nelly
• Nervous System:– brain, spinal cord, nerves– Recognizes stimuli and
helps the body respond
Label the brain and spinal cord on Nelly
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
Human Body Systems Book
Human Body Systems Book
Nervous system Skeletal
system
Human Body Systems Book
Human Body Systems Book
Function: