Warm Up!How many bones make up the adult skeleton?Where are the tiniest bones in the skeleton located?What is the largest bone in the body?

Bones of the Skull:There are 8 immovable bones called cranial bones. They form the casing that surrounds the brain.

Cranial Bones are joined together along zigzag lines called Sutures.

The three tiny bones located in the middle ear that

transmit sound vibrations are the Anvil, Hammer, and

Stirrup.

Facial Bones:

14 of them form the face

13 of the bones are interlocking and immovable and the 14th bone is the mandible.

Hyoid Bone -

located at the base of the tongue for support.

Spinal ColumnCervical Vertebrae

Thoracic Vertebrae

Lumbar Vertebrae

Sacrum & Coccyx

Spinal Column

- consists of 24 separate

bones called vertebrae.

The first two vertebrae that forms your neck in the Cervical region on which your head pivots on are called:

1. Atlas

2. Axis

What is this suppose to represent?

- A joint…

Joints:- allow for movement to occurThe ends of some bones are covered with:- thin membranes- cushioned with layers or pads of cartilage

Ligaments:They bind bones together to form a sheath , or capsule, enclosing the movable joint.

Joint Capsule:

It is lined with a membrane, and the membrane secretes a fluid called

Synovial Fluid.

Synovial Fluid -

It is a lubricating fluid for the joint.

Class Activity:You and your partner will complete the worksheet – “Joint Classifications, Types, and locations.”

Rules for Activity

- Work quietly!

- Stay on task.

- Complete the worksheet.

- Although you are working together, each one must write their own answers.

3 Basic Classifications:

1. Freely Moveable Joints

2. Partially Immovable Joints

3. Immovable Joints

Facts:The more freedom of movement within a joint the less stability it has. - Reduced or limited movement means increased stability and support.

Types of Joints & Locations

Type: Location:

Immovable Joints

SkullPartially Moveable Joints

Ribs

Pivot JointRadius and Ulna (twisting)

Hinge Joint

Knee

Gliding Joint

Vertebrae, Tarsals

Ball & Socket Joints

Hips

Homework!!!

Study all your notes and worksheets on the Skeletal System for Quiz on Wed!!! - Wkst. Due Wed – “Skeleton in the Closet