0
The nictating membrane is a clear eyelid deployed over the eye to protect it while swimming. Basically, the same thing as us humans using swimming goggles.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What color is the nictitating membrane?
depends on the species.
What is Feline second eyelid called?
A nictitating membrane The nictitating membrane is the THIRD eyelid, the SECOND eyelid that you asked about is just that, the eyelid, just like in humans
Where is the location of a nictitating membrane of frog?
The nictitating membrane is part of a frog's eye. It is just above the lower lid and acts as a protective third eyelid.
The frog have nictitating membrane over there eyes who they can see in what?
The nictitiating membrane protects the eye so frogs can see in water.
What is a nictating membrane?
The nictitating membrane (from Latin nictare, to blink) is a transparent or Translucentthird Eyelidpresent in some animals that can be drawn across the Eyefor protection and to moisten the eye while also keeping visibility. Various reptiles, birds, and Sharkhave a full nictitating membrane, whereas, in many Mammals, there is a small Vestigialremnant of the membrane present in the corner of the eye. Some mammals, such as Camel, Polar_bear, Pinniped, and Aardvark, also have a full nictitating membrane. It is often called a third eyelid or haw and may be referred to as the Plica_semilunaris_of_the_conjunctivaor palpebra tertia in scientific terminology.Nictitating membranes are found in Bird, Reptile, Amphibian, Fish, but are less common in Mammal, mainly being present in Monotremeand Marsupial.Answers.comIn humans, the plica semilunaris and its associated muscles are thought to be the vestigial remnants of the nictitating membrane and its muscles.Answers.comCharles Darwin reported that the plica semilunaris is slightly larger in Africans and Australian Aborigines than in other peoples.Answers.comOnly one species of Primate---theCalabar_angwantibo---isknown to have a functioning nictitating membrane.Answers.comFile:Haliaeetus_leucocephalus_LC0198.jpgFile:Haliaeetus_leucocephalus_LC0198.jpgThe nictitating membrane (mid-blink) of a Bald_EagleFile:Gray892.pngFile:Gray892.pngThe plica semilunaris is thought to be the vestigial remnant of a nictitating membrane in humans.Unlike the upper and lower eyelids, the nictitating membrane moves horizontally across the eyeball. It is normally translucent. In some diving animals, for example Beaverand Manatee, it moves across the eye to protect it while under water, and in these species it is transparent; in other diving animals including Sea_lion, it is activated on land, to remove sand and other debris. This is its function in most animals. In birds of prey, it also serves to protect the parents' eyes from their chicks while they are feeding them, and when Peregrine_falconsgo into their 200 mph dives, they will blink repeatedly with the nictitating membrane to clear debris and spread moisture across the eye. In polar bears it protects the eyes from Snow_blindness. In sharks it protects the eye while the shark strikes at its prey. Woodpeckerstighten their nictitating membrane a millisecond prior to their beak impacting the trunk of a tree in order to prevent their eyes from leaving their sockets.Answers.comThe nictitating membrane in Catand Dogdoes not have many muscle fibers and consequently is not usually visible, and its being chronically visible should be taken as a sign of poor condition or ill health. It can, however, be seen clearly when gently opening the eye of the healthy animal when it is asleep, or pushing down/applying pressure on the eyeball will cause it to appear. In some breeds of dogs, the nictitating membrane can be prone to Prolapse, resulting in a condition called Cherry_eye. Birds can actively control their nictitating membraneAnswers.comIn many species, any stimulus to the eyeball (such as a puff of air) will result in reflex nictitating membrane response. This reflex is widely used as the basis for experiments on Classical_conditioningin Rabbit.Answers.comi hope that answers your question =D
What membrane covers the eye of a frog?
The nictitating membrane is the transparent layer the covers the outside of a frogs eye. Frogs have a so-called Nictitating membrane, which they can slide over their eyes for protection. They do this while jumping and swimming.
Is Nictitating membrane hereditory?
The membrane is. SOME problems with it are too.
What is the membrane over the fetal pig eye called?
The nictitating membrane.
What color is the nictitating membrane?
depends on the species.
What is Feline second eyelid called?
A nictitating membrane The nictitating membrane is the THIRD eyelid, the SECOND eyelid that you asked about is just that, the eyelid, just like in humans
Where is the location of a nictitating membrane of frog?
The nictitating membrane is part of a frog's eye. It is just above the lower lid and acts as a protective third eyelid.
Name of the translucent eyelid that owls have?
Nictitating membrane
Is cartilage present in your eyes?
nictitating membrane is cartilage.
What is a horses third eyelid called?
Nictitating Membrane
What is the transparent eyelid of a frog called?
nictitating membrane
Where is the nictitating membrane located?
depends on the species.
What are the extra membranes in reptiles?
It's called the Nictitating membrane
