1. Introduction to the Human Body

2. Earliest anatomical studies occurred on live humans and animals called vivisection thousands of years ago.
Copyright © 2010 Ryan P. Murphy

3. An oil painting of an animal vivisection on a live dog.
Copyright © 2010 Ryan P. Murphy

4. Leonardo da Vinci created 750 anatomical drawings from corpses from 1489-1515.

8. Anatomical research in the past hundred years has taken advantage of technological developments and a growing understanding of the sciences. What will you learn in your lifetime?
Copyright © 2010 Ryan P. Murphy

9. Levels of Organization
This is just 1 version of the levels and are ordered from the simplest level to the most complex.
Organelles
Cells
Tissues
Organs
Organ systems
Organisms
Populations
Communities
Ecosystems
Biosphere
intro to human body Stop at 3:07

10. Levels of Organization - Cells
The smallest living part of an organism.
The human body is made of 100 trillion cells all working together. 100,000,000,000 cells
Unicellular organisms (those with only one cell) require that their organelles keep them in homeostasis. No tissues or organs to do it for them!

11. Levels of Organization - Tissues
Tissues are large groups of cells all doing the same job.
Both plants and animals have different kinds of tissues.
The different kinds of animal tissues are classified into four groups:
epithelial tissue
connective tissue
nerve tissue
muscle tissue

12. Levels of Organization - Organs
Organs are groups of tissues that work together to do a job.
Our skin is made of hair tissue, oil and sweat gland tissues, nerve tissue, blood tissue, and many other tissues to make the organ called skin.
Our eyes are made of nerve tissue, blood vessel tissue, muscle tissue, lens tissue, pupil tissue, and many more types of tissue to make the organ called eyes.

13. Levels of Organization - Organ System
A group of organs that work together to perform a major function in a plant or animal.

14. The different types of organ systems we will be covering this unit:
Skeletal system- Supports and protects the body.
Muscular system- Enables movement of the body and internal organs.
Digestive system- Breaks down food and absorbs nutrients.
Excretory System - Removes wastes from the body through the kidneys, liver, lungs, and large intestine.
Integumentary System – Removes wastes from the body through the skin.
Circulatory- Transports materials to and from the cell.
Respiratory system- Takes in oxygen and eliminates carbon dioxide.
Nervous system- Detects information from the environment and controls body functions.

15. Levels of Organization - Organism
an individual animal, plant,
or single-celled life form

16. Homeostasis
Homeostasis is where an organism’s internal (inside) environment is kept stable (or balanced) no matter what happens internally or externally. Homestasis keeps BALANCE or EQUILIBRIUM inside an organism!
Unicellular organisms do this with their organelles!

17. Body Systems Rap