Do you know what the role of the nervous system is?
Topic Overview - Homeostasis
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#1. Upon the release of adrenaline do blood vessels widen, narrow or both?
The blood vessels are constricted or dilated depending on where the blood flows.
The muscles required for running for example are dilated since they are required to match the “fight or flight” response. Others are constricted as they are temporarily deemed less important.
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#2. Name one hormone that is released from the ovaries?
#3. Which hormone is associated with the "fight or flight" response?
#4. Do relay neurones and motor neurones have dendrons?
#5. Increases in thyroxine concentration in the blood cause a decrease in the amount of thyroxine released. What kind of feedback mechanism is this?
#6. What do we call an organ that is affected by a specific hormone?
#7. What is the name of the chemicals that we use to transmit messages through the blood to organs?
#8. Through which process do chemicals move across synapses?
#9. Motor neurones carry impulses to which part of the nervous system?
#10. Growth hormone stimulates cells in muscles and bones to divide. It also stimulates another system, which system is this?
#11. What effects does adrenaline have on the heart?
Select all that apply:
#12. Resting metabolic rate is measured under which of the following conditions?
Select all that apply:
#13. Which pathway is used when rapid automatic responses are needed by your body to external stimuli, like touching a hot object?
#14. Name one hormone that is produced in the pancreas?
#15. Which of the following descriptions best matches the hormonal system?
#16. Fill in the gap: Receptors detect pain and send impulses via the sensory neurone towards the spinal cord. The ..................... intercepts the signal and diverts it along motor neurones to the effectors (muscles) which quickly move away from the source of pain.
#17. Which hormone is released from the adrenal gland?
#18. Growth is increased during puberty. Why is this?
#19. When is adrenaline released?
#20. Which of the following describes metabolic rate?
#21. What is the gap between neurones called?
#22. What effect does adrenaline have on the liver?
#23. Which of the following is an effect stimulated by the thyroxine hormone?
#24. What are two systems which allow your body to respond to its surroundings?
Select all that apply:
#25. When an impulse reaches an axon terminal what happens?
#26. Hormones are released by a range of glands, name one gland that releases hormones. ? do not include the word "gland" or "glands"
finish
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