2bones muscles joints short Long Flat ribs Voluntary biceps/triceps THE LOCOMOTOR SYSTEMbonesshortLongFlat ribsmusclesVoluntary biceps/tricepsInvoluntaryjointsFixedSemi-flexible vertebraeFlexible elbowThey protect internal organs and support the body.They move bones when they contract and relax.They join bones together and help make the skeleton flexible.
3Short: provide support and stability. In our backs, hands and feet. Flat: protect our internal organs. Our ribs.Long: are used for movement. In our arms and legs.BONESFixed: do not move.Semi-flexible : allow a little movement.Flexible: allow a lot of movement.JOINTSVoluntary: are controlled by our brain.Involuntary: move automatically.MUSCLES
4The skeleton maxilla mandible BONES patella The skeleton is made up of all the bones and cartilage in our body.Bones are made of hard bone tissue.Cartilage is made of a more flexible tissue.maxillamandibleShort: provide support and stability. In our backs, hands and feet.Flat: protect our internal organs. Our ribs.Long: are used for movement. In our arms and legs.BONESpatella
5JointsOur bones are connected at joints. Flexible cartilage protects the end of these bones.Strong elastic bands of tissue called ligaments connect bones at a joint.Fixed: do not move.Semi-flexible : allow a little movement.Flexible: allow a lot of movement.JOINTSA fracture is a broken bone.A sprain is when we tear a ligament.A dislocation is when a bone is moved from its normal position in a joint.
6Muscles Tendons tissues which connect muscles to bones. There are over six hundred muscles in the human body.Muscles help to:Give our bodies shape.Move.Protect our internal organs.intercostalsMuscles are made up of muscle fibres and the muscles in our body respond to the nervous system by contracting and relaxingTendons tissues which connect muscles to bones.The musculoskeletal system is made up of bones, ligaments, muscles and tendons.Voluntary: are controlled by our brain.Involuntary: move automatically.
7central nervous system Peripheral nervous system The nervous systemThe nervous system receives and responds to information from the five sense organs.It controls the working of the internal organs and body systems, such as the circulatory and respiratory systems.It produces reflex actions that protect our bodies from danger.1.- BRAINThe control centreCerebrum: the biggest part and controls voluntary movements.Cerebellum: controls balancem movement and coordination.Brain stem: connects the brain to the spinal cord and controls involuntary movements.central nervous system2.- SPINAL CORD: is made up of nerve tissue and runs from our brain down our spine.It controls reflex actions.Peripheral nervous systemOur nerves are made up of nerve cells called neurons. They are connected by tiny branches.
8The nervous system and the senses Our sense organs detect information from the environment and neurons transmit this information to our brain.SightHearingSmellTasteTouchCan detect colour, shape and size.Can detect loud, soft, high and loud sounds.Can detect chemicals – pleasant or unpleasant - in the air.Can detect tastes – bitter, sweet, sour, saltyCan detect temperature, texture, pressure and pain.CorneaPupilirislensretinaNerve receptors – Optic nerveeardrumthree small bonescochleaauditory nervenostrilsNerve receptors – Olfactory nervetaste budepidermisdermis