human locomotion
DESCRIPTION
TRANSCRIPT
Human Locomotion
Human Locomotion
• Involves the movement of – Bones – Cartilage – Muscles – Tendons – Ligaments
• It allows humans to move from place to place
Human Skeletal System
• It contains bones of many different shapes and sizes – Purposes
• Support and protection of body structure
• Anchors muscle action • Leverage fo body
movement • Produces blood cells in
the marrow
Cartilage • Connective tissues
– It is flexible and elastic– It give support – Flexibility of joints – Cushions effects in joints
• It makes up most of the body’s skeleton
• By adulthood most of the cartilage is taken over by bones – Found:
• End of ribs• Nose • Ears• bronchi • Trachea
Human Muscular System
• There are three types of muscles in the human body – Visceral
• Smooth in appearance • Involuntary in action
Human Muscular System
• Cardiac muscles – Involuntary in action – Striped in appearance
• Heart etc………………
Human Muscular System
• Skeletal Muscle– Appearance
• Voluntary in action • Striped in appearance
– Controlled by the central nervous system
– They are used to move bones in a coordinated manner
– Muscles usually operate in pairs
• Which “pull” on the bones on either side
– INCLUDE » Extenders- which
extend the limbs » Flexors – return the
limbs (bend the joints)
Tendons
• Made up of connective tissues
• They are tough, inelastic
• They connect the muscle to the bone
Ligaments
• Made up of tough elastic connective tissue
• Able to stretch slightly during joint movement
• Connect bones at joints such as – Elbows fingers knees
Problems that effect the Skeletal System
- Arthritis
- Tendonitis
Arthritis
• Inflammation of the joints causing swelling an horrible pain – Cam occur at a young
age – Usually occurs when
old
Tendonitis
• Inflammation (swelling) of the tendons usually at the bone attachment – Caused by physical
stress and irritation to the spot
– Common in athletes