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Amazon mollies have a small dorsal fin consisting of 10-12 soft rays. [9] The position of the dorsal fin on the back of the fish is anterior, closer towards the head, than the position of the anal fin on the underside of the fish. They do not have any spiny rays on their fins. [10]
Macroglossia is the medical term for an unusually large tongue. [1] Severe enlargement of the tongue can cause cosmetic and functional difficulties in speaking, eating, swallowing and sleeping. Macroglossia is uncommon, and usually occurs in children. There are many causes. Treatment depends upon the exact cause.
Typically, after courtship, the male fertilises the eggs and then collects them in his mouth, holding onto them until they hatch. During this time he cannot feed. Among the maternal mouthbrooding cichlids, it is quite common (e.g., among the mbuna) for the male to fertilise the eggs only once they are in the female's mouth.
The sailfin molly is a tolerant species, as it can exploit the thin film of oxygen-rich surface water with its upturned mouth, so is able to survive oxygen-depleted habitats. A euryhaline species, the sailfin molly may be found in a variety of saline environments, tolerating salinities as high as 87 ppt [ 10 ] and breeding in brackish waters .
The pediatrician diagnosed her daughter with an anterior tongue-tie, where a band of tissue tethers the tip of the tongue to the floor of the mouth, preventing it from moving as it should.
While identifying the causes of tongue thrust, it is important to remember that the resting posture of the tongue, jaw, and lips are crucial to the normal development of the mouth and its structures. If the tongue rests against the upper front teeth, the teeth may protrude forward, and adverse tongue pressure can restrict the development of the ...
The tongue may traumatized by mechanical, thermal, electrical or chemical means. A common scenario is where the tongue is bitten accidentally whilst a local anesthetic inferior alveolar nerve block is wearing off. The tongue may develop scalloping on the lateral margins, sometimes termed crenated tongue.
Oromandibular dystonia (OMD) is an uncommon focal neurological condition affecting the jaws, face, and mouth. [1] Oromandibular dystonia is characterized by involuntary spasms of the tongue, jaw, and mouth muscles that result in bruxism , or grinding of the teeth , and jaw closure.