Question 1
Question
What does the hypothalamus regulate?
Answer
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Cardiovascular system
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Respiratory system
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Blood
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Food and water intake
Question 2
Question
Name outputs from the hypothalamus.
Answer
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Hormones that cause release of pituitary hormones.
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Autonomic nervous system activity via brainstem
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Emotional output via the limbic system
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Hippocampus
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Retina
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Sensory receptors in the viscera
Question 3
Question
Name inputs to the hypothalamus
Answer
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Sensory receptors from the viscera
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Sensory receptors within the hypothalamus
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Visual (retina)
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Smell (olfactory)
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Emotion (limbic)
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Hippocampus (memory)
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Hormones (pituitary gland)
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Motor (motor cortex)
Question 4
Question
The preoptic area of the anterior hypothalamus contains structures that are associated with what functions?
Answer
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Nuclei concerned with set-points
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Suprachiasmatic nucleus to do with circadian rhythms
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Mammillary body to do with recollective memory
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The arcuate nucleus to do with feeding
Question 5
Question
The posterior hypothalamus contains structures that are associated with what functions?
Answer
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Nuclei concerned with set-points
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Suprachiasmatic nucleus to do with circadian rhythms
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Mammillary body to do with recollective memory
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The arcuate nucleus to do with feeding
Question 6
Question
The periventricular zone of the hypothalamus contains structures that are associated with what functions?
Answer
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Arcuate nucleus (feeding)
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Paraventricular nucleus (hormone release into posterior pituitary)
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Supraoptic nuclei that release hormones into the posterior pituitary
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Mammillary body that is to do with recollective memory
Question 7
Question
The medial zone of the hypothalamus contains structures that are associated with what functions?
Answer
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Paraventricular nucleus to do with releasing hormones into the posterior pituitary and also feeding
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Arcuate nucleus to do with feeding
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Mammillary body to do with recollective memory
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Supraoptic nuclei that release hormones into the posterior pituitary
Question 8
Question
The lateral zone of the hypothalamus contains structures that are associated with what functions?
Answer
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Lateral hypothalamic area to do with feeding
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Supraoptic nuclei that release hormones into the posterior pituitary
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Arcuate nucleus to do with feeding
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The paraventricular nucleus to do with feeding
Question 9
Question
On the following diagram of the hypothalamus, what does the green question mark show?
Answer
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Medial zone
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Lateral zone
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Periventricular zone
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Third ventricle
Question 10
Question
On the following diagram of the hypothalamus, what does the red question mark show?
Answer
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Medial zone
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Lateral zone
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Periventricular zone
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Third ventricle
Question 11
Question
On the following diagram of the hypothalamus, what does the blue question mark show?
Answer
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Medial zone
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Lateral zone
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Periventricular zone
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Third ventricle
Question 12
Question
On the following diagram of the hypothalamus, what does the purple question mark show?
Answer
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Medial zone
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Lateral zone
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Periventricular zone
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Third ventricle
Question 13
Question
What are the three main functions of the hypothalamus?
Question 14
Question
Exteroreceptors and Interoreceptors input to the hypothalamus via the ANS which monitor the internal and external body environments respectively.
Question 15
Question
Outputs of the hypothalamus to the ANS go via the brain stem and give rise to the SNS and PNS.
Question 16
Question
The hypothalamus is linked directly to both the anterior and posterior pituitary gland.
Question 17
Question
Neurohormones released from axonal projections from the hypothalamus to the posterior pituitary travel directly into the bloodstream and into the circulation.
Question 18
Question
Name two hypothalamic inputs that would monitor short-term behavioural aspects
Answer
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Glucose receptors - detect glucose levels
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Mechanoreceptors - detect how full you are
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Metaboreceptors - detect how full you are by the accumulation of metabolites at a site
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Baroreceptors - detect how full you are by pressure on the walls
Question 19
Question
Leptin is a hormone released from
Answer
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Adipose tissue
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The hypothalamus
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The liver
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Connective tissue
Question 20
Question
Leptin acts on the hypothalamus to result in what effects?
Answer
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Increased metabolic rate (via pituitary and ANS)
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Decreased feeding behaviour (limbic system)
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Decreased metabolic rate (via pituitary and ANS)
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Increased feeding behaviour (limbic system)
Question 21
Question
The arcuate nucleus contains a high density of leptin receptors.
Question 22
Question
What is the purple structure seen on the coronal section of the hypothalamus?
Answer
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Arcuate nucleus
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Suprachiasmatic nucleus
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Paraventricular nucleus
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Mammillary body
Question 23
Question
What is the function of the paraventricular nucleus in response to signalling from the purple structure?
Question 24
Question
What is the function of the lateral hypothalamic area in response to signalling from the purple structure?
Question 25
Question
What three functions can hypothalamic thermoreceptors co-ordinate?
Answer
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Autonomic - vasodilat/cont
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Behavioural - shivering/sweating/panting
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Endocrine - increase/decrease metabolism
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Autonomic - sweating/shivering
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Endocrine - vasodilat/cont
Question 26
Question
The anterior hypothalamus contains temperature-sensitive neurons that can change their firing rate depending upon if the temperature is hot/cold.
Question 27
Question
Pyrexia is a return to the normal temperature set-point in the hypothalamus.
Question 28
Question
What three reproductive functions (behavioural) does the hypothalamus have?