3 Musculo- skeletal System Digestive System Circulatory System Nervous System Respiratory System

1-100  The number of bones in the human body. 206

1-200  Skeletal muscle is attached to bones by these. Tendons

1-300  The three types of connective tissue in the musculoskeletal system. Bones, ligaments, cartilege.

1-400  How muscles make bones move. Muscles contract due to signal from nervous system & exert a force; always work in opposing pairs/groups.

  Explain what osteoporosis is and three ways to lessen the risks. Loss of bone tissue, makes bones brittle & weak; increase calcium, vitamin D, and weight- bearing exercises.

2-100  The main function of the digestive system. Takes food in, digests it, excretes waste.

2-200  Where digestion begins. The mouth.

2-300  Its function is to move food to the stomach. The esophagus

2-400  Name and briefly describe one disease of the digestive system. Diabetes: pancreas stops producing enough insulin Colitis: epithelial tissue in colon inflamed.

2-500  Name four substances that are added to food in the digestive tract to aid in digestion. Saliva, enzymes, acids, bile, mucous.

3-100  The major organ of the circulatory system. The heart.

3-200  The main function of the circulatory system. To transport substances around the body.

3-300  The four types of blood cells. Red, white, platelets, and plasma.

3-400  What makes cardiac muscle tissue different from other muscle tissue. It all contracts at the same time, so the heart beats with a regular beat.

3-500  The two other functions of the circulatory system. To regulate body temperature; to fight disease.

4-100  Two main parts of the central nervous system. Brain and spinal cord.

4-200  Main function of the nervous system. Transmit signals to and from brain and rest of body.

4-300  How neurons function. Conducting electrical signals or nerve impulses

4-400  They receive input from the external environment. Sensory receptors

4-500  One function of the cerebrospinal fluid. Cushion brain & spinal cord from injury; transport chemicals; remove wastes from brain.

5-100  The main function of the respiratory system. Gas exchange.

5-200  Another name for the air sacs in the lungs. Alveoli.

5-300  _______ enters bloodstream in the ______ through ________; ______ leaves the bloodstream. Oxygen; lungs; diffusion; carbon dioxide.

5-400 Inhalation: muscles contract, diaphragm flattens, volume of air increases Exhalation: muscles relax, diaphragm dome-shaped, volume of air decreases.  How breathing works.

5-500  Two things done by an increase in breathing. Decreases concentration of carbon dioxide in blood; increases available oxygen.

SINGLE BIOPARDY Last slide.