Sinusoid
Sinusoid
A Sinusoid (pronounced: /ˈsaɪnəˌsɔɪd/) is a term used in Anatomy and Physiology to describe a small, blood vessel found in certain organs, particularly the Liver, Bone Marrow, and Lymphoid Tissue.
Etymology
The term "Sinusoid" is derived from the Latin word "sinus", meaning "bend" or "curve", and the Greek suffix "-oid", meaning "like" or "resembling". This is due to the sinusoid's curved, tube-like structure.
Function
Sinusoids play a crucial role in the exchange of various substances between the Bloodstream and the surrounding tissues. They are lined with Endothelial Cells, which allow for the passage of small molecules and fluids.
Related Terms
- Endothelial Cells: These are cells that line the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall.
- Hepatic Sinusoids: These are a type of sinusoid found in the liver. They play a crucial role in the liver's function of filtering and detoxifying the blood.
- Sinusoidal Capillaries: These are a type of blood capillary that has larger pores in their endothelial lining, allowing for the exchange of larger molecules.
External links
- Medical encyclopedia article on Sinusoid
- Wikipedia's article - Sinusoid
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