Endocrine System Flashcards
Hormones
Chemical messenger
Travels in blood stream
Released from endocrine glands
Effect on target organ
Endocrine system
Slow travelling Slow to act Long acting Widespread effect Hormones Plasma in B stream
Nervous system
Fast travelling Fast acting Short acting time Localised effect on organs Nerve impulses Neurones
Insulin
B sugar levels
Pancreas
All cells
Glucose to glycogen
Glucagon
B sugar levels
Pancreas
Affects muscles, livers to release more glucose
Glycogen to glucose
ADH
B water levels
Pituitary gland
Affects kidney tubule
Collecting duct, more permeable, more water into blood
Adrenaline
Body readiness
Adrenal glands
Affects all cells
Raises heart rate, breathing
Oestrogen
Uterus lining
Ovary
Affects uterus
Builds up lining
Progesterone
Uterus lining
Ovary
Affects uterus
Maintain lining
FSH
Development of follicles
Pituitary gland
Affects ovary
Follicles grow
LH
Ovulation
Pituitary gland
Affects ovary
Egg released from follicle
Testosterone
Maleness
Testes
Affects all cells
Muscle development, voice deepening, aggression
Adrenaline on body
Heart Breathing center of brain Arteriole of skin Arteriole of digestive system Muscles of alimentary canal Muscles of body Liver Fat deposits
Heart
Heart thumping
More glucose and oxygen to muscle
Breathing center of brain
Panting
Oxygenation of blood, rapid removal of CO2
