ShmoopTube

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And here's your shmoop du jour brought to you by the body's internal

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clock terrifying villainous pirates since 1904 alright here's our question which [dinosaur chasing a man]

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brain structure acts as the body's internal clock and here our potential

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answers, all right brain structure...[mumbling] All right,

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unlike our favorite pirate eating alligator the structure that regulates our internal [Alligator staring at a pirate]

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clock isn't actually in our stomachs but in our brains with that in mind we

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know that one of these answers is not located in the brain and can therefore

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be eliminated and that answer is bingo the adrenal glands which are located on [Hand selection one letter from A-E]

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top of both kidneys and secrete hormones that help regulate metabolism blood [Letter B on top of adrenal glands secreting hormones]

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pressure and adrenaline to name a few well the frontal lobe describes one of

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the four major lobes in our brains. However the frontal lobe is the control

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panel overseeing things like our emotional expression memory and language [Front lobe operating a control panel]

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but for all the cool stuff the frontal lobe is in charge of it has nothing to

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do with the body's internal clock so let's get rid of A) Another brainy but

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also incorrect answer to the question is d the pituitary gland, the pituitary

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gland is a pea-sized gland that controls the growth development and function of [pituitary gland and other glands wearing graduation and builder hats walk past]

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most of the bodies other glands and as for your pineal gland well that guy

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produces an melatonin, which affects your sleep patterns and circadian rhythm

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definitely sounds like the answer right well not quite.. See, we're looking for the [pineal gland secreting hormones and clock ticks]

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structure that acts as the body's actual internal clock not the structure that

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produces hormones that aid the clock, pretty important distinction that leaves

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us with C) the suprachiasmatic nucleus located near the pineal gland within the [scan of the brain showing optic chiasm and hypothalamus]

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hypothalamus so it acts as the internal clock for the body regulating important

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bodily functions on a 24 hour cycle including hormone production the sleep [bearded man sat on a chair]

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wake cycle and exact locations of all nearby Pirates [Pirate at a market and alligator appears]

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let me show

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