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There are three bones in the middle ear. These are the malleus, incus, and stapes. Disturbance of any of these three bones causes bone deafness.

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Is hereditary deafness recessive or dominant?

Hereditary deafness can be caused by both recessive and dominant genetic mutations. Autosomal recessive inheritance typically requires two copies of the mutated gene for deafness to manifest, while autosomal dominant inheritance only requires one copy of the mutated gene. There are also other forms of inheritance, such as X-linked and mitochondrial inheritance, that can cause hereditary deafness.


What are genetic causes of deafness?

Deafness is an etiologically heterogeneous trait with many known genetic and environmental causes. Genetic factors account for at least half of all cases of profound congenital deafness, and can be classified by the mode of inheritance and the presence or absence of characteristic clinical features that may permit the diagnosis of a specific form of syndromic deafness. The identification of more than 120 independent genes for deafness has provided profound new insights into the pathophysiology of hearing, as well as many unexpected surprises. Although a large number of genes can clearly cause deafness, recessive mutations at a single locus, GJB2 or Connexin 26, account for more than half of all genetic cases in some, but not all populations.


What is the bone between the temporal bone and the zygomatic bone?

the zygomaticus bone is the cheek bone or malar bone


When was A Bone for a Bone created?

A Bone for a Bone was created on 1951-04-07.


What type of bone makes up the shaft of a long bone?

bone marrow is in the center of the bone shaft