hormonal coordination science form 4 chapter 2
DESCRIPTION
POWER POINT FOR TEACHER GUIDELINE..TRANSCRIPT
HORMONAL COORDINATION
pancreas
EFFECT OF HORMONAL IMBALANCE
• Normal condition: –Hormones are secreted by the endocrine
glands in sufficient quantities
• Hormonal Imbalance:–When there is a shortage or excess of
hormone production
Effect of Hormonal ImbalanceHORMONES SHORTAGE EFFECT EXCESSIVE EFFECT
Growth hormone (pituitary gland)
Dwarfism Gigantism
Thyroxine (thyroid gland) Low metabolic rateCretinism (children)GoiterLethargy
Higher metabolic rateIncrease in body temperature and heartbeatIrritability
Insulin (pancreas) Diabetes mellitus Hypoglycemia
Oestrogen and progesterone (ovaries)
Secondary sex characteristics are not well developed Irregular menstrual cycle
Overdeveloped of secondary sex characteristics
Testosterone ( testes) Secondary sex characteristic are not well developed including sex organ
Overdeveloped of secondary sex characteristics
Dwarfism
Gigantism
CRETINISM• they grow up stunted in height (kerdil) and
also mentally retardation (terencat akal)
Goiter
Diabetes
Hypoglycemia• An abnormally low level of sugar in the blood.• the oversecretion of insulin by the pancreas in response to a rapid rise in blood sugar or "glucose".
2.7
COORDINATION BETWEEN THE NERVOUS SYSTEM AND THE
ENDOCRINE SYSTEM
Comparison between the nervous system and the endocrine system
Nervous System
Endocrine System
Similarities
Differences
• Both give responses towards stimuli• Both function in controlling and regulating
body activities
Information in the form of
The way information is carried around the
body
Speed of response
Effect duration
Target Organ
What would you do in this situation???
2.8 EFFECT OF DRUG
• Drug–Chemical substances that change the
function of the body–Act on the nervous system by altering
the movement of nerve impulses along the neurons–Affect the synapses between the
neurones
Effect of DrugsTYPES OF DRUG EXAMPLE OF DRUG EFFECTS OF DRUGS
Depressants -Tranquilisers-Barbiturates
-Delay reaction towards stimuli-Decrease stress-Help people to calm down
Stimulants -Amphetamines-Caffeine-Cocaine
- Increase metabolic rate- Stay awake or active
Hallucination -cannabis-Marijuana (ganja)-LSD
- Hallucination
Narcotics -Heroin-Morphine-Codeine
-Relieve pain-Induce sleep
Inhalants -Cleaning solvents-Glue-Paint thinner-Aerosol spray
-Hallucination and depression-Damage to brain, lungs, kidneys, liver, and other parts of the body
2.9 EFFECTS OF ALCOHOL
• Alcoholic drinks – Contain ethanol (type of alcohol)– Example:• Beer, wine, whisky, and champange
– Depressants that effect the functioning of nervous system and detrimental to our health
• Effect of excessive consumption of alcohol on body coordination– Slow down the transmission of impulse – Slow down brain activities which lead to • misjudgement, • a total loss of self-control, • temporary loss of memory, • and delaying reaction time
• Effect of excessive consumption of alcohol on health– Damage their brain, liver, stomach, and other
internal part of bodyORGANS EFFECTS
Brains -Brain damage-Rapid aging-Coma
Heart -Heart disease-High blood pressure-Stroke
Liver -Liver inflammation-Liver scarring
Stomach Stomach ulcer
• Important of avoiding – Have better health– Be free from addiction– Prevent accidents– Overcome family and social problems
2.10 IMPORTANCE OF A SOUND AND HEALTHY MIND
• Mind– Having the ability to think and reason
• Factors that affect the mind– External
• Social condition• environment
– Internal• Imbalance of hormone secretion• Brain injury• Intake chemical substance, consumption of drugs and alcohol