Animal Coordination, Control and Homeostasis Flashcards
Endocrine glands
Glands where hormones are produced
Endocrine glands
(Examples)
-Pituitary gland
-Pancreas
-Ovaries
-Testes
-Thyroid
Hormones
(Definition)
Chemical messengers in the body that are made by endocrine glands and released into the bloodstream
Thyroxine
(Action + target organs)
-Regulate heart rate and metabolic rate
-Whole body
Adrenaline
(Action + Target organs)
-Prepares body for action
-Whole body
Glucagon
(Action + target organs)
-Controls blood sugar levels by decreasing glucose uptake
-Liver
Oestrogen
(Action + Target organs)
-Controls puberty and menstrual cycle, Stimulates FSH production, Inhibits LH production
-Uterus, Ovaries, Breasts, Bones, Brain
Progesterone
(Action + Target organ)
-Maintains uterus lining, Inhibits FSH production
-Uterus, Ovaries, Brain
FSH-Follicle Stimulating Hormone
(Action + Target organs)
-Triggers egg ripening and oestrogen production in ovaries
-Ovaries, Testes
LH-Luteinising hormone
(Action + Target organs)
-Triggers egg release and progesterone production in ovaries
-Ovaries, Testes
Testosterone
(Action + Target organs)
-Controls puberty in males
-Testes, Prostate gland, Hair follicles, Muscles
Examples of ways that adrenaline can affect the body
-Increase respiration rate
-Increase heart rate
-Cause pupils to dilate
Why must body temp be kept at around 37 degrees Celsius?
It is the optimum temperature for enzymes in the human body
Vasodilation
The blood vessels supplying the skins capillaries dilate so more blood flows close to the skins surface
Vasoconstriction
Blood vessels supplying the skins capillaries constrict to reduce the skins blood supply
Homeostasis
The maintenance of a constant internal environment
ART-Assisted Reproductive Technology
ART uses hormones and other techniques to increase the chance of pregnancy
Clomifene Therapy
A drug which helps increase the levels of FSH and LH in the blood. It is used to treat women who barely or never release eggs