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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. To use force to get what you want.

arranged

/əˈrānj/

verb

put in order.

dilator

/ˈdīlādər/

noun other

thing that dilates something. A drug that causes dilation.

sphincter

/ˈsfiNGktər/

noun

Ring of muscle contracting to close a body opening.

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. Exchanges of one set of clothes for another. To exchange one kind of money for another.

medication

/ˌmedəˈkāSH(ə)n/

noun

Substance to relieve pain or cure sickness.

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. Free jobs; jobs you can apply for.

plumbing

/ˈpləmiNG/

noun verb

system of pipes, tanks, fittings, and other apparatus required for water supply. To connect pipes, baths, toilets to a water source.

neurotransmitter

/ˌn(y)o͝orōˈtranzmidər/

noun

Chemical released by nerves that boost signals within the body.

sometimes

/ˈsəmˌtīmz/

adverb

occasionally, rather than all of time.

designed

/dəˈzīnd/

adjective verb

planned or conceived in detail for specific purpose. To think of a plan.

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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