NERVOUS SYSTEM

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NERVOUS SYSTEM KONTAXAKIS ANTONIOS (27336) TRIANTAFILLOU EVANGELIA FEDRA (27363)

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A BODY SYSTEMS PROJECT. NERVOUS SYSTEM. KONTAXAKIS ANTONIOS (27336) TRIANTAFILLOU EVANGELIA FEDRA (27363). INTRODUCTION. Coordination of our body system is achieved through our nervous system, a long leap forward in a millions of years evolution battle. Cellular level. - PowerPoint PPT Presentation

Transcript of NERVOUS SYSTEM

Page 1: NERVOUS SYSTEM

NERVOUS SYSTEM

KONTAXAKIS ANTONIOS (27336)

TRIANTAFILLOU EVANGELIA FEDRA

(27363)

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INTRODUCTION

Coordination of our body system is achieved through our nervous system, a long leap forward in a millions of years evolution battle.

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Cellular level

The nervous system is based on the interconnection of neurons, each sending and receiving nerve impulses.

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Receptors

Stimuli are received through special mechanisms, receptor organs such as chemo-or thermoreceptor. (Meissner’s tactile or end buld of Krause)

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SENSORY ORGANS

Our sensory organs are: the ear the eye the nose(nasal passages) the tongue skin&hairs&nails

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1. Ear: an organ for hearing and balance

2. Eye: an organ of sight.

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3.The tongue:a strong muscle at the floor of the mouth that is covered by the lingual membrane. It is the organ of taste.

4.Skin:It consists of 3 layers: a)the epidermis b) the dermis c) the subcutis.

The nails are a form of skin and it is formed by keratin.

5.The nose(nasal passages): an organ of

smell.

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Pathway till command centres

Peripheral nervous system is then assigned to carry info till our brain or spinal cord.

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Command Centres

Brain interneurons and spinal cord reflex arcs are assigned to decode stimuli value and decide action.

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Reflex

Reflexes offerfast reactionwithoutimmediatebrainparticipation.

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Brain parts

Our brain comprises of– the cerebrum responsible for most of brain

information processing– the brain stem dealing with involuntary

functions of vital importance – the cerebellum offering balance and

equilibrium as well as memory of repetitive acts

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The Brain

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Action

Motor neurons carry the final command till the neuroglandular or neuromuscular junction where action takes place.

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Diseases of nervous system

Epilepsy: a disorder in which nerve cells of the brain, from time to time, release abnormal electrical impulses.

Brain tumors Lyme disease: a bacterial illness that is

transmitted to humans by the bite of deer tick.

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What can we do to maintain a healthy nervous system?

•Well balanced diet

• Regular exercise

•Stress management

•Pharmacist’s Supplement Recommendation

Vitamins and Minerals

Antioxidants

Essential Fatty Acids

Amino Acids

Herbs and Phytonutrients

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Strengths and weaknesses

rapid and effective info processing

culture– language– science– ethics– adaptability

conciousness

Pain inability to renew drug addiction certain spectrum of

sound+radiation frequency

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