1. Skeletal System
CS: 8 (HS), 10 (MT)

2. BELLWORK Write the following terms on your paper Ost- (bone)
Endo- (inner)
Peri- (around)
-blast (germ/embryonic)
-cyte (cell)
Med- (middle)
Fx (fracture)
Ca (calcium)
Osteoblast

3. review
Leuk/o-
Erythr-
Thromb-
Plt
Wbc
rbc

4. Objectives: swbat Discuss careers r/t the skeletal system
List and describe the functions of the skeletal system
Describe hemo/hematopoiesis
Draw and label parts of a long bone
Describe the parts of a long bone
Draw and label the (8) types of fractures

5. What is the Skeletal System?
System made up of bones
206 bones in the adult skeleton
Functions:
Framework
Protection
Levers
Production of blood cells
storage
Write this down!

6. 1. Framework
What would our body look like without bones? Could we walk? Could we move?
The bones provide a framework to support the body’s muscles, fat and skin

7. How do bones offer protection? What exactly needs to be protected?
Vital organs are surrounded by bone; brain-cranium, heart and lungs- rib cage, spinal cord- vertebral column, reproductive organs- pelvis

8. Muscles attach to bones to help provide movement
3. Levers
Could we move our body without bones? Can a muscle move if not attached to a bone?
Muscles attach to bones to help provide movement

9. 4. Production of blood cells
How do our bones produce blood cells???
The production of blood cells is called hemopoiesis or hematopoiesis (Hem-/hemat- = blood). Bones assist in the production of RBC (red blood cells), WBC (white blood cells), and PLT (platelets)

10. 5. storage
What do our bones store?
Most of the body’s calcium supply is stored by the bones, along with phosphorous and fats

11. Long Bone Bones come in all shapes and sizes
Bones of the arms and legs (extremities) are called long bones

12. Draw and label the long bone on p. 158

13. Make flash cards and a quizlet for all terms

14. Parts of a long bone p. 158 draw and label
Diaphysis- long part of long bone
Epiphysis- each end of long bone (end= epiphysis)
Medullary Canal- cavity in diaphysis (med- = middle) (pool)
Yellow Marrow- fills medullary canal (pool water)
Endosteum- lines med canal to keep yellow marrow intact;
produces some bone growth (pool liner)
Red Marrow- found in proximal end of humerus and femur,
Vertebrae, ribs, sternum, and cranium; produces RBC, PLT,
and some WBC
Periosteum- tough membrane which covers the outside
of bone
RBC= erythrocyte (erythro- = red), WBC= leukocytes (leuko- = white), PLT= thrombocytes (thromb- = clot), -cyt = cell, ost- = bone