12911819
Description
Flashcards by Addna Dahir, updated more than 1 year ago
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Created by Addna Dahir
about 6 years ago
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| Question | Answer |
| What are hormones? | Hormones are chemical substances that act as messengers in the body. |
| What is the endocrine system? | It is a communication system that controls the internal environment of the body. |
| What is a pituitary gland? | The endocrine gland that controls the activites of other endocrine glands; it is often called the 'master gland'. |
| What are target cells? | The cells on which hormones act. |
| What is hypothalamus? | A portion of the brain that constantly checks the internal environment of the body. |
| What is homeostatis? | The process of maintaining a constant internal environment. |
| What is feedback system? | Body systems regulate themselves by monitoring and self correction adjusting output depending on stimulus. |
| What is an effector? | Muscles or glands that put the messages into effect. |
| What is a receptor? | A specialised cell that detects stimuli. |
| What is endothermic? | Able to maintain a constant body temperature. |
| What is ectothermic? | Animals that rely on environmental temperature to regulate body temperature and have the body temperature similar to their surroundings. |
| What is the function of hypothalamus? | The most important function is to link the nervous system and the endocrine system. |
| What is another name for Pituitary gland? | 'Master gland' |
| What are hormones responsible for? | Water balance, body temperature and the volume of glucose in your blood. |
| What is a thyroid? | Hormone thyroxin which controls the rate of chemical reactions in the cell. |
| What is pancreas? | It produces the hormones insulins and gluocagon which both control blood glucose levels. |
| What is Adrenal? | Produces the hormones adrenalin in readiness for flight/fight. |
| What happens if the temperatur of your body goes a few degrees above? | Your metabolism will stop and you will die. |
| What happens if the temperatur of your body goes a few degrees lower? | Your metabolism will slow down. |
| What does the hypothalamus act on? | Pituitary gland |
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