Only Anatomy Majors Can Pass This Muscle Quiz

The erector spinae consists of how many muscles?

Retry Correct Incorrect The erector spinae consists of three muscles: the Iliocostalis, spinalis, and longissimus. These muscles run the length of the spine, from the base of the skull all the way down to the pelvis. It’s what keeps us upright!

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BSIP/Universal Images Group via Getty Images

BSIP/Universal Images Group via Getty Images

The erector spinae consists of how many muscles?

• Four
• Three
• One
• Five