Skeletal system lesson

TODAY I WILL

 Explain how the body systems work together to

maintain homeostasis.

 Identify the organs skeletal systems and explain

their functions.

​You will see this pencil and will take notes, starting on slide 19

BODY SYSTEMS HELP MAINTAIN

 Homeostasis - maintenance of a constant

internal environment

Question: What could happen if homeostasis is NOT maintained
in an organ system?

cell

tissue

organ

Organ system

Organism

LEVELS OF ORGANIZATION

Cells, tissues, organs....work together to make organ systms

Skeletal System

STRUCTURE

 Composed of bones , ligaments and cartilage

 Ligaments and cartilage are found in joints,

which are places where bones meet

BONES ARE MADE OF…

 Minerals (calcium)

 Connective tissue (to be flexible)

 Bone Marrow (makes white and red blood cells)

 What is in your bones?

FUNCTIONS OF SKELETAL SYSTEM

 Protection for internal organs

 Storage of minerals (calcium)

 Blood cell production (bone marrow)

 Shape/Support

 Movement

 (1)Protection for internal organs

(2)Storage of minerals (calcium)

 (3)Blood cell production

 Happens in bone marrow

 Blood cells- red blood cell

white blood cells

(4) Shape and Support

THERE ARE 206 BONES IN YOUR BODY!

(5) Movement