Locomotion

Locomotion

Movement!

• The interaction between endoskeleton and muscles– Endoskeleton: Skeleton is on the inside– Exoskeleton: Skeleton is on the outside

The Human Skeleton

Purpose:

1. Support & protection

2. Lever

3. Point of attachment

4. Blood cell production

Joint

• An area where two bones

meet

• Allows for movement

Types of Joints: Suture Joint

• Where the skull bones meet

• Very small amount of movement allowed

Types of Joints: Hinge Joint & Pivot Joint

• Hinge Joint– Allows movement

forward and backward

• Pivot Joint– Allows for rotating

motion

Types of Joints: Ball & Socket Joint and the Gliding Joint

• Ball & Socket– Allows movement in

any direction

• Gliding Joint– Allows for movement

of bones past one another

A. B. C.

D. E.

Examples of Joints

Suture Hinge Pivot Ball & Socket

Gliding

Muscle- tissue used for movement

Type of Muscle

Appearance Function

Skeletal Striped -Voluntary-Arms, legs, toes, fingers

Smooth Smooth -Involuntary-Diaphragm, Digestive Tract

Cardiac Striped -Involuntary-Heart

Ligaments & Tendons

• Ligaments• Connect bones to

bones

• Tendons– Connect muscle to

bone

Cartilage

Purpose:• Support• Flexibility• Cushioning• It does NOT anchor

Found in the outer ear, nose, between back bones

Malfunctions

Malfunction Location Cause Symptoms Cure

Tendonitis -Elbow-Less likely in hip or torso

Swelling of tendon

- Aches, pains, stiffness

-Stop usage-Anti-inflammatories-Braces

Sprain - Ankle, knee, wrist, fingers, toes

Overextension of ligaments

- Pain, swelling, bruising

- Rest, ice, compression, elevation