endostyle

hypopharyngeal groove

An endostyle is a longitudinal ciliated groove on the ventral wall of the pharynx which produces mucus to gather food particles. It is found in urochordates and cephalochordates, and in the larvae of lampreys. It aids in transporting food to the esophagus. It is also called the hypopharyngeal groove. The endostyle in larval lampreys (ammocetes) metamorphoses into the thyroid gland in adults, and is regarded as being homologous to the thyroid gland in vertebrates. However, Dumont, et al. question whether the endostyle in ammocetes is homologous with that of the urochordates and cephalochordates. Since the endostyle is found in the three branches of chordates, it is presumed to have arisen in the common ancestor of these taxa, along with a shift to internal feeding for extracting suspended food from the water.

種類 Bone
器官系 Endocrine
親構造 surface structure
ラテン語名 hypopharyngeal groove

よくある質問

What is the endostyle?
An endostyle is a longitudinal ciliated groove on the ventral wall of the pharynx which produces mucus to gather food particles. It is found in urochordates and cephalochordates, and in the larvae of lampreys. It aids in transporting food to the esophagus. It is also called the hypopharyngeal groove
What body system is the endostyle part of?
The endostyle is part of the Endocrine.
What is the Latin name for the endostyle?
The Latin name for the endostyle is hypopharyngeal groove.

関連構造

vasculature of liver hepatic vascular element liver trabecula hepatic trabecula ligament of liver hepatic ligament capillary system of liver liver capillary endocrine pancreas endocrine pancreas parathyroid gland epithelial body adrenal cortex adrenal gland cortex liver parenchyma hepatic parenchyma

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