PHS Skeletal System Part 2

PHS Skeletal System Part 2

Types of bones

• •Flat bones protect, like a shell (ex: the sternum)

• •Long bones add strength and can bear weight (ex: the femur)

• •Short bones are useful as bridges (ex: the carpals and tarsals of the wrist)

• •Irregular bones are complex shapes that provide surfaces for tendons and ligaments to attach to (ex: vertebrae)

Open Ended

Can you name some bones that you know inside of your body? List here:

Multiple Choice

What type of bone is this?

• Short bone

• Long bone

• Flat bone

Multiple Choice

What type of bone is this?

• Long bone

• Short bone

• Flat bone

Multiple Choice

What type of bone is this?

• Long bone

• Irregular bone

• Flat bone

Multiple Choice

Tarsals are examples of?

• Short bones

• Long bones

• Flat bones

Bone markings

• •Condyles: rounded knobs at the ends of bones

• •Epicondyles: similar, but smaller bumps

• •Malleoli: bumps that form the ankle

• •Process: part of the bone that projects out

• •Tuberosity: a long bump that is hard to detect

• •Crest: a raised ridge at the edge of a bone

Divisions of the Skeleton

• •Axial skeleton (center axis) protects the body

• –Skull and spine

• –Spine is naturally curved

• –3 types of ribs form a cage

• •Appendicular skeleton (appendages) provides movement

• –Arm and leg bones

• –Pectoral girdle (shoulder)–Pelvic girdle (pelvis)

Multiple Choice

The skull is on which portion of the skeleton?

• Axial

• Appendicular

Multiple Choice

The vertebral column is on which portion of the skeleton?

• Axial

• Appendicular

Multiple Choice

The pectoral girdle is on which portion of the Skeleton?

• Axial

• Appendicular

Multiple Choice

The leg bones are on which portion of the skeleton?

• Axial

• Appendicular

Now go to your textbook and read pages 308-312

:)

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