The Skeletal The Skeletal SystemSystemLesson 1:Lesson 1:The Skeletal SystemThe Skeletal System

Lesson ObjectivesUpon completion of this lesson, students should be able to …

List the various types of bones in the body.

Identify specific bones for each bone classification.

Discuss the functions of the bones of the human skeleton.

Lesson ObjectivesExplain various types of joints and

body movements.Describe the axial skeleton.Describe the appendicular skeleton.

Skeletal System206 bones, PLUS cartilage, and ligaments

Divided into two systemsAxial skeleton

skull and the vertebral system

Appendicular skeletonextremities

Axial skeleton

Appendicular skeleton

Anterior and Posterior Human Skeleton

Six Main Functions of Bones

1. shape, support

2. protection for organs

3. storage place for mineral salts, calcium, and phosphorus

4. formation of blood cells

5. attachment of skeletal muscle

6. movement possible

Name them bones

CLICK Here

http://hes.ucfsd.org/gclaypo/skelweb/hotpot/osteo01.html

JointsThe positioning of the bones at the joint determines the type of movement

synarthrotic joint has no movementAmphiarthrotic joint allows for limited movement

A diarthrotic joint allows for free movement

synarthrotic joint

Amphiarthrotic joint

diarthrotic joint

Body Movements Allowed by the Diarthrotic Joint

Abduction – movement away from the midline

Adduction – movement toward the midline

Circumduction –moving a body part in a circular motion

Dorsiflexion –bending a body part backward

Eversion – the process of turning outward

Body Movements Allowed by the Diarthrotic Joint Extension –straightening a flexed limb

Flexion –bending (or curving) the spine

Inversion-- turning inwardPronation –lying prone or face down: or turning the hand so that the palm points downward

Protraction –moving a body part forward

Body Movements Allowed by the Diarthrotic Joint Retraction –moving a body part backward

Rotation –moving a body part around a central axis

Supination –lying supine or face upward; also the process of turning the palm or foot upward

Fill in Cloze

Tendons and LigamentsLigaments – connect bone to bone

Tendons – Connect muscle to bones

Bones of Axial the Skeleton

SkullCraniumFaceSternumRibsVertebraeSacrumCoccyx

The Vertebral Column

Divided into 5 regions:Cervical vertebrae

Thoracic vertebrae

Lumbar vertebraeSacrum Coccyx

The Rib Cage

ribs acts to form a protective cage that houses the heart, lungs

Consists of 12 pairs of ribs

Bones of the Appendicular Skeleton

Upper extremitiesLower extremitiesPectoral girdlePelvic girdle

Bones of the Upper Extremities

Clavicle Scapula HumerusUlnaRadiusCarpalsMetacarpals Phalanges

Bones of the Lower Extremities

Femur Patella Tibia Fibula Tarsals Metatarsals Phalanges

Try It For Yourself!

Where are the following bones?frontalmandibleulnametatarsalstibiametacarpalstarsals

skull

hand/wrist

lower leg/lower extremity

foot/ankle

lower arm/upper extremity

face

foot

face

upper leg/lower extremity

pelvic girdle

lower arm/upper extremity

vertebral column

skull

lower leg/lower extremity

Try It For Yourself!

Where are the following bones?mandiblesphenoidsacrumradiusiliumfemurfibula

Medical SpecialistsChiropractorOrthopedic SurgeonOsteopathPodiatrist

ID basic parts of skeletal system activity~~~~