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PHSI3011 08-2 Physiology of Circadian Rhythms

Michael Jardine 9 questions

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Questions in this quiz (9)

1Where is the SupraChiasmal Nucleus (SCN)?
1. AHypothalamus
2. BHippocampus
3. CPons
4. DBrainstem
5. EEVERYWHERE!!
2Which of the following fluctuate as a result of circadian rhythms?
1. ABlood Pressure
2. BCell regeneration
3. CEating
4. DSleep
5. EHormones
6. FTides
3Zeitgeber (time givers) are any stimuli that reset the circadian rhythm. In mammals, light is the main one, but which of the following are also included (to lesser extents) :
1. AExercise
2. BNoise
3. CMeals
4. DTemperature
5. EGravity
6. FTides
4What is the “natural” period of a biological rhythm free-running in constant conditions (in humans = ~24.18h)
1. ATau
2. BTor
3. CTow
5Where is melatonin secreted from?
1. APineal gland
2. BParaThyroid Gland
3. CHypothalamus
4. DSCN
6Label each.
1. ASympathetic
2. BParasympathetic
7Melatonin correlates [blank_start]__________[blank_end] with body temperature.
1. AInversely
2. BDirectly
8Which does what where?
1. AGhrelin
2. BLeptin
3. CAdrenaline
4. DInsulin and/or Glucagon
5. EMelatonin
9Where do the following effects of Cortisol take place?
1. AImmune System
2. BLiver
3. CMuscle
4. DAdipose tissue