Middle School

Part 1:

Welcome to The Skeletal System

Important Vocabulary Terms:

Skeletal system-The framework of the body,consisting of bones and other connective tissues, which protects and supports the body tissues and internal organs. The human skeleton connective tissues contains 206 bones,six of which are the tiny bones of the middle ear (three in each ear) that function in hearing.The largest bone in the body is the thigh bone,or femur.

Connective tissue-

A tissue, usually of mesoblastic origin, that connects, supports, or surrounds other tissues,organs,etc.


A differentiated structure (as a heart or kidney) consisting of cells and tissues and performing some specific function in an organism

What is a System?

There are different types of systems and the one we will be looking at is from a medical point of view.

System-A group of body organs or structures that together perform one or more vital functions

The above is a picture of the skeletal system.

Visit the following Video and website:


Answer the following questions:


Part 2: Human Body

How many systems do we have in our body?

There are TEN

They are as follows:

  • Skeletal System- We already learned about the skeletal system in part 1. As we take a look at the rest of the systems that our bodies have you will see how very complicated our bodies are as well as see the connection between the different systems.
  • Muscular System- All the muscles of the body collectively, especially the voluntary skeletal muscles.
  • Circulatory System- The system of blood ,blood vessels,lymphatics, and heart concerned with the circulation of the blood and lymph
  • Nervous System- The bodily system that in vertebrates is made up of the brain and spinal cord, nerves, ganglia, and parts of the receptor organs and that receives and interprets stimuli and transmits impulses to the effect or organs.
  • Respiratory System- A system of organs functioning in respiration and consisting especially of the nose, nasal passages, nasopharynx, larynx, trachea, bronchi, and lungs called also respiratorytract
  • Digestive System- The bodily system concerned with the ingestion, digestion, and absorption of food.
  • Excretory System- The systems that excrete wastes from the body. For example, the system of organs that regulates the amount of water in the body and filters and eliminates from the blood the wastes produced by metabolism. The principal organs of the excretory system are the kidneys, ureters, urethra, and urinary bladder.
  • Endocrine System- The glands and parts of glands that produce endocrine secretions, help to integrate and control bodily metabolic activity, and include especially the pituitary, thyroid, parathyroids ,adrenals, islets of Langerhans, ovaries, and testes.
  • Reproductive System- The system of organs and parts which function in reproduction consisting in the male especially of the testes, penis, seminal vesicles, prostate, and urethra and in the female especially of the ovaries, fallopian tubes, uterus, vagina, and vulva.
  • Lymphatic/Immune System- The immune system is part of our general body defenses against disease. It functions by recognizing viruses and bacteria and converting that information into hormones that activate the immune process. The function of the lymph system is to remove excess tissue fluids that do not return through the circulatory system. In addition, the lymph system is responsible for absorbing protein form this fluid and returning it to the blood.

This is a lot of information to take in. NOW we will have some fun! Using the following put together a slide show of the human body.






Have Fun! Explore the Human Body!