Presentation.. no word of advise please.. just for simple presentation.

1. GROUP MEMBERS:
● Gideon Lijua
● Irvyance Eliot
● Alvin Loh
● Wilson Bobby
● Syazwani Suhaili
● Angel Lianna

2. Nervous Control of Movement
WHAT IS IT CONSIST
OF?

3. Nervous Control of Movements
HUMAN NERVOUS SYSTEM (HNS)
● Consist of 2 types of system:
– Central Nervous System (CNS)
● Brain
● Spinal Cord
– Peripheral Nervous System (PNS)
● 12pairs Cranial nerves &Branches
● 31pairs Spinal nerves & Branches

4. Central Nervous System(CNS)
CNS is responsible for:
– Integrating (Taking in data)
– Processing (Generates data)
– Coordinating (Action)
Sensory data – Carries information on condition
inside and outside of the body.
Motor Command -Control or adjust activities of
peripheral organs. e.g :Muscle

5. Peripheral Nervous System(PNS)
● Sensory Nerves (Afferent)
– Brings information to the CNS from receptors in
organs e.g skin.
– Detect changes or responds to the presence of
specific stimuli.
● Motor Nerves (Efferent)
– Carries motor commands from the CNS to
muscle and glands for effector(actions)
– Has different division such as Somatic (SNS)
and Autonomic(ANS) components

6. DIVISION OF PERIPHERAL
NERVOUS SYSTEM

7. Divisions of Peripheral Nervous
System
● Somatic Nervous System(SNS):
– Nerves send information to the brain from
body's various detector
– Controls voluntary actions
– Example:
● Touching
● Hearing
● Seeing

8. Cont.
● Autonomic Nervous System(ANS):
– Controls the activities of all the internal organs.
– Involuntary actions
– Example:
● Blood circulation
● Breathing
● Digestive system

9. Cont.
Autonomic Nervous System(ANS):
– Has 2 types Divisions:
● Parasympathetic Division
➔ Important for control of normal body parts
Example:
● Digestive system
● Sympathetic Division
➔ Also call 'Fight or Flight division
➔ Important in helping us cope with stress

11. NEURON & STRUCTURE

12. Neuron
● Basic funtional unit
● Specialized for elctrical signaling over long
distances
● Respond to stimuli
Examples: Touch, sounds, light
● Conduct impulses
● Communicate with other types of cells
Example: Muscle cells

13. Neuron Structure
● More diverse in size and shape than other cells:
Examples:
● Cell Body
● Dendrites
● Axon
● Synaptic Terminal

14. Cont.

15. IMPULSE

16. Impulse
● Membrane of the neuron
● Types of action potential:
– Depolarization
– Repolarization
● Action potential is a very fast changing process
● It happens whenever a nerves cell is
stimulated.

17. Cont.
● Impulse are of:
– Electromechanical nature
– Active process
– Self generating
– Energy consuming
● Nerve cannot transmit continuous direct current
● Motor nerve transmit impulse – 70/120m/s
● Others travels 12-70m/s

19. SYNAPSE

20. Synapse
● Point of impulse transmision between neurons
● Impulse are transmitted from pre-synaptic
neurons to post-synaptic neurons

21. Synapse

22. Synapse

23. REFLEXES & NERVOUS
CONTROL IN SKILLED WORK

24. Reflexes
● Not consciously directed (automatic)
Example:
– Blinking of eyelids
– Touch a hot object
● Conditioned Reflexes
– Becoming skilled
– Devoloping new reflexes which go on without
conscious control.
Example:
● Writing

26. Nervous Control in Skilled Work

27. Nervous Control in Skilled Work
● Nervous impulses travel along the optic nerve

28. Nervous Control in Skilled Work
● Impulses then passed over to other centres in
medulla and cerebellum
● Received visual, brains decides the next move.

29. Thank you for your ATTENTION