SKELETAL SYSTEM

Cool x-rays

Skeletal System

» Function˃ Provides frame and support for all systems and

organs.

Skeletal System»Ligaments˃ Connect bones together; tough tissue

» Tendons˃ Connects bones to muscles

Skeletal System

» Bone˃Attach muscles˃Means of movement˃Protect internal organs˃Storage of minerals

» Cartilage˃ Firm, flexible tissues that is not as hard as

bone

Skeletal System» Layers of Bone˃Periosteum

+ Outer layer+ Cushions the hard portion of the bone+ Repair of broken bones

Skeletal System» Layers of Bone˃Compact Bone

+ beneath periosteum+ layer of hard mineral matter + Calcium+ gives bones strength

Skeletal System» Layers of Bone˃Spongy Bone

+ Inside hard outer layer+ fills ends of bones+ lines hollow portions

Skeletal System» Layers of Bone˃Red marrow

+ inside cavities of spongy bone+ formation of red blood cells

Skeletal System» Layers of Bone˃Yellow marrow

+ Located inside hollow portion+ Fat storage cells+ Energy storage

Types of Fractures

» http://www.youtube.com/watch?v=nOJ5UdKf-us

SKELETAL SYSTEM

Skeletal System» Types of Bone

˃ Long Bones + Longest+ Provide support and movement+ Levers

˃ Example -- legs, ribs, pelvic bones

Skeletal System» Types of Bone

˃ Short Bones + Smaller than long bones+ Joints+ Comfort and mobility

˃ Example -- feet and hands

Skeletal System» Types of Bone

˃ Irregular Bones+ Have an irregular shape+ Support and protect

˃ Example -- vertebrae

Skeletal System» Types of Bone

˃ Flat Bones + Thin and flat+ Protect organs

˃ Example -- skull

Skeletal System

» Joints˃Where different bones meet˃Classified by the way they move.

Hinge Joint

Ball and Socket

Gliding

The Skeleton

» The skeleton is divided into two parts:˃ The axial skeleton protects the major organs of the

nervous, respiratory, and circulatory systems+ The axial skeleton consists of the skull, hyoid

bones, vertebral column, ribs, and sternum˃ The appendicular skeleton is the framework that

consists of the extremities, shoulder, and pelvic girdle

+ Appen means to add or hang+ The appendicular skeleton includes the bones of

the front and hind limbs

The Axial Skeleton» The cranium is the portion of the skull that

encloses the brain

The Axial Skeleton» The vertebral column

supports the head and body and provides protection for the spinal cord

» The vertebral column is comprised of individual bones called vertebra

The Appendicular Skeleton» Front limb˃ scapula˃ clavicle˃ humerus˃ radius˃ ulna˃ carpal bones˃ metacarpal bones

+ cannon bone in livestock˃ phalanges

The Appendicular Skeleton» Hind limb˃ pelvis˃ femur˃ patella˃ tibia˃ fibula˃ tarsal bones˃ metatarsal bones

+ cannon bone in livestock˃ phalanges

The Bone Dance» http://

www.youtube.com/watch?v=3Waxf9KZWpM