Hemolymph
혈림프
Embed This Widget
Add the script tag and a data attribute to embed this widget.
<script src="https://cdn.jsdelivr.net/npm/speciesfyi-embed@1/dist/embed.min.js" defer></script>
<div data-speciesfyi="glossary" data-slug="hemolymph"></div>Embed via iframe for maximum compatibility.
<iframe src="https://speciesfyi.com/iframe/glossary/hemolymph/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://speciesfyi.com/glossary/hemolymph/Add a dynamic SVG badge to your README or docs.
[](https://speciesfyi.com/glossary/hemolymph/)Use the native HTML custom element.
<script src="https://cdn.jsdelivr.net/npm/speciesfyi-embed@1/dist/embed.min.js" defer></script>
<speciesfyi-glossary slug="hemolymph"></speciesfyi-glossary>Definition
The circulatory fluid of insects that bathes organs directly, analogous to blood in vertebrates.
Detailed Explanation
Unlike vertebrate blood, hemolymph is not contained in closed vessels — it fills body cavities and surrounds organs directly. A simple tubular heart pumps hemolymph forward; it returns through open channels. Hemolymph lacks hemoglobin (oxygen is delivered by tracheae), but contains hemocytes (immune cells) that engulf pathogens, and clotting proteins to seal wounds. In some cold-tolerant insects, hemolymph contains antifreeze proteins preventing ice crystal formation.