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How to Pronounce Posterior Superior Iliac Spine

Definition, meaning, and phonetic spelling

Posterior Superior Iliac Spine Pronunciation

pos-TEER-ee-or soo-PEER-ee-or IL-ee-ak spyn

Stressed syllable in ALL CAPS · hyphens separate syllables

Syllable Breakdown

pos
TEER

stress here

ee
or soo
PEER

stress here

ee
or IL
ee
ak spyn

9 syllables

What is Posterior Superior Iliac Spine?

The bony bump at the back of the iliac crest, abbreviated PSIS. It is visible as a dimple in the lower back skin ("dimples of Venus") and is a landmark for sacroiliac joint injections.

Questions About Posterior Superior Iliac Spine

How do you pronounce 'Posterior Superior Iliac Spine'?

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Say it like this: pos-TEER-ee-or soo-PEER-ee-or IL-ee-ak spyn. The stress falls on TEER in the first word and PEER in the second word. Put extra emphasis on those two syllables and the rest will fall into place naturally.

Why do people mispronounce this term?

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The biggest mistake is stressing the wrong syllable—people often say pos-teer-ee-OR instead of POS-teer-ee-or. Another common error is rushing through the word or not separating the four parts clearly, which makes it sound like one jumbled word instead of a descriptive phrase.

What do the word parts mean?

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Posterior means 'toward the back,' superior means 'toward the top,' iliac refers to the ilium (part of the pelvis), and spine means 'a sharp bony point.' So together it literally describes a bony bump at the back and top of the pelvis.

What is the short form, and how do you say it?

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The abbreviation is PSIS, pronounced 'P-S-I-S' (you say each letter separately). Many healthcare workers use this shorter form in conversation because it's much quicker than saying the full name.

How many syllables does this term have?

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The full phrase has 13 syllables: pos-TEER-ee-or (4) + soo-PEER-ee-or (4) + IL-ee-ak (3) + spyn (1). Breaking it into smaller chunks makes it much easier to pronounce and remember.

What's a simple way to understand what this term describes?

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Think of it as a specific bony landmark on your lower back—the pointy part you can often feel or see as a small dimple in the skin. It's named 'posterior' and 'superior' because it's located at the back and upper area of your hip bone.

Are there related words that share similar roots?

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Yes! 'Posterior' appears in other anatomy terms like posterior tibial artery, and 'iliac' appears in terms like iliac crest or iliac artery. Learning these common roots helps you recognize and pronounce similar medical words.

Can you use this word in a simple sentence?

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Here's an example: 'The anatomy instructor pointed out the posterior superior iliac spine as a landmark on the skeleton.' This shows how the term is used when discussing or identifying body structures.