2018年9月18日 · Hemotympanum refers to the presence of blood in your middle ear, which is the area behind your eardrum. In most cases, the blood is trapped behind your eardrum, so you won’t see any blood...

2018年11月6日 · Hemotympanum refers to both the presence of blood in the middle ear cavity and to ecchymosis of the tympanic membrane (TM), and a systematic study of intra-TM (iTM) hemorrhage without bleeding in the middle ear cavity has not been conducted.

2023年5月8日 · The middle fibrous layer (lamina propria) is made up of fibroelastic connective tissue and contains the blood vessels and nerves of the tympanic membrane. However, unlike most connective tissue, only a small amount of fibrils are made up of type I collagen, and instead, most are made of type II and type III collagen.

2023年1月24日 · Your tympanic membrane (eardrum) is a thin, circular layer of tissue that separates your outer ear from your middle ear. Your eardrum plays an important role in hearing. It also protects your middle ear from dirt, bacteria and debris.

Analysis of the in vivo studies revealed blood flow in the tympanic membrane to travel in two directions: down the manubrial artery towards the periphery and up the manubrial veins from vessels in the periphery. The manubrial artery divides and branches into a series of arcading vessels that extend towards the periphery of the TM.

2025年2月10日 · The anterior tympanic artery enters through the petrotympanic fissure, supplying the tympanic membrane and parts of the ossicular chain. Its role is significant due to its contribution to the vascularization of the malleus and incus.

In inflammatory conditions of the middle ear, the vascular pattern of the tympanic membrane is dramatically altered, and blood vessels traversing the pars tensa can be discernable. Methods: The study was performed in rats with healthy tympanic membranes and in tympanic membranes obtained from animals with purulent otitis media evoked by ...

2018年3月31日 · In inflammatory conditions of the middle ear, the vascular pattern of the tympanic membrane is dramatically altered, and blood vessels traversing the pars tensa can be discernable.

2024年7月31日 · The tympanic membrane is a thin membrane that separates the external ear from the middle ear. It acts to transmit sound waves from air in the external auditory canal (EAC) to the ossicles of the middle ear .

2013年10月25日 · We newly developed the whole-mount imaging method of the tympanic membrane. Lymphatic vessel loops were localized around the malleus handle and annulus tympanicus. In regeneration, abundant lymphatic vessels were observed in the pars tensa. Site-specific lymphatic vessels may play an important role in the tympanic membrane.