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Synovial Joints

by Greg Crowther


Context

Bones meet at joints, which can be classified according to function (synarthotic, amphiarthotic, diarthrotic) and/or structure (fibrous, cartilaginous, synovial). The overall message of this song is that there are several different types of synovial joints with different numbers of axes of movement, as follows: pivot (1), hinge (1), condylar (2), saddle (2), ball-and-socket (3). Sources differ on whether plane (a.k.a. gliding) joints have any axes of movement; this song agrees with those who say they do not have any.


Lyrics

CHORUS:
Tri, bi, mono, non!
How many axes of movement are in each joint?
Tri, bi, mono, non!
Synovial classification is this song's point....

Gliding joints have zero;
Hinge and pivot each have one;
Condylar and saddle, two;
Ball-and-socket have a ton....
(Dun, dun, duh-dun-dun-dun....)

CHORUS

It's this song's point!


Other Files

MP3 (demo)

sheet music (with melody play-back)


Lesson Plan

Songs like this one can be used during class meetings and/or in homework assignments. Either way, the song will be most impactful if students DO something with it, as opposed to just listening.

An initial, simple follow-up activity could be to answer the study questions below. A more extensive interaction with the song might entail (A) learning to sing it, using the audio file and/or sheet music as a guide, or (B) designing kinesthetic movements ("dance moves") to embody it. The latter activity should begin with students identifying the most important or most challenging content of the song, and deciding how to illustrate that particular content.


Study Questions

(1) What is the meaning of the phrase, "Tri, bi, mono, non"?

(2) What is the meaning of the phrase, "Ball-and-socket have a ton"?

(3) Give an example of each type of joint listed.

(Answers may be found on the answers page.)