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Why do your knuckles pop? - Eleanor Nelsen

5,240,740 views

TED-Ed

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

90%
  • 3:56 / 4:22

Speech Rate:

  • 152 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

popping

/päp/

verb

To cause something to open or burst suddenly.

purpose

/ˈpərpəs/

noun verb

Reason for which something is done; aim; goal. have as intention or objective.

cushion

/ˈko͝oSHən/

noun verb

stuffed bag. soften impact on.

grinding

/ˈɡrīndiNG/

adjective noun verb

oppressive and seemingly without end. reduction of something to small particles. To make loud jarring noise by pressing hard.

flexible

/ˈfleksəb(ə)l/

adjective

capable of bending easily without breaking.

noxious

/ˈnäkSHəs/

adjective

(Of substance) poisonous/harmful to living things.

stretching

/streCH/

verb

be made or be capable of being made longer or wider without tearing or breaking.

phagocytic
other

Capable of functioning as a phagocyte.

synovial

/səˈnōvēəl/

adjective

of type of joint which is surrounded by thick flexible membrane forming sac into which is secreted viscous fluid that lubricates joint.

shoulders

/ˈSHōldər/

noun other verb

upper joint of each of person's arms and part of body between this and neck. Parts of the body where an arm attaches or joins. To push something using the top part of your arm.

primary

/ˈprīˌmerē/

adjective noun verb

Most important, most basic or essential. preliminary election. run as opponent of incumbent in preliminary election.

texture

/ˈteksCHər/

noun verb

Quality from different elements, as in music. give something rough texture.

offered

/ˈôfər/

verb

To say you are willing to do something.

vertebrae

/ˈvərdəbrə/

noun

each of series of small bones forming backbone, having several projections for articulation and muscle attachment, and hole through which spinal cord passes.

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