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Why Do Some Drugs Make Your Pupils Wider?

294,942 views

SciShow

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

98%
  • 3:15 / 3:18

Speech Rate:

  • 174 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

muscles

/ˈməsəl/

noun other verb

body tissue that produces movement. Body tissues that move parts of the body. move object using physical strength.

arranged

/əˈrānj/

verb

To organize things or people in a particular way.

dilator

/ˈdīlādər/

noun other

thing that dilates something. A drug that causes dilation.

sphincter

/ˈsfiNGktər/

noun

ring of muscle surrounding and serving to guard or close opening or tube.

controls
other verb

Participants in experiment that are left untouched. To direct or influence the behavior of something.

changes

/CHānj/

noun other verb

act or process bringing change. Acts of making or becoming something else. To go from one train, bus, etc. and go to another.

medication

/ˌmedəˈkāSH(ə)n/

noun

drug or other form of medicine that is used to treat or prevent disease.

contractions

/kənˈtrakSH(ə)n/

noun other

process of becoming smaller. Shortened form of words by omitting letters.

openings

/ˈōp(ə)niNG/

noun other

space or gap allowing passage. Actions of starting some things, e.g. a new business.

plumbing

/ˈpləmiNG/

noun verb

System of pipes, baths and toilets in buildings. To measure the depth of something.

neurotransmitter

/ˌn(y)o͝orōˈtranzmidər/

noun

chemical substance which is released at end of nerve fibre by arrival of nerve impulse and, by diffusing across synapse or junction.

sometimes

/ˈsəmˌtīmz/

adverb

occasionally, rather than all of time.

designed

/dəˈzīnd/

adjective verb

planned or conceived in detail for specific purpose. To plan in a particular way to fulfill a purpose.

recreational

/ˌrekrēˈāSH(ə)n(ə)l/

adjective

of activity done for enjoyment when one is not working.

chemicals

/ˈkemək(ə)l/

noun other

distinct compound or substance. Basic substances produced by mixing elements.

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