- The
nictitating membrane (from
Latin nictare, to blink) is a
transparent or
translucent third eyelid present in some
animals that can be
drawn across the...
-
translucent third eyelid called a
nictitating membrane,
while others have a
vestigial nictitating membrane. The
membrane works to
protect and
moisten the...
-
generally characterized by
lacking traits such as an anal fin,
nictitating membrane, or
suborbital shelves in the cranium.
Squalomorphii sharks are also...
-
Cherry eye is a
disorder of the
nictitating membrane (NM), also
called the
third eyelid,
present in the eyes of dogs and cats.
Cherry eye is most often...
-
found in
other animals, some of
which may have a
third eyelid, or
nictitating membrane. A
vestige of this in
humans survives as the
plica semilunaris. The...
- by the
nictitating membrane, a
third concealed eyelid that
sweeps horizontally across the eye like a
windscreen wiper. The
nictitating membrane also covers...
- dystrophy, distichiasis, entropion,
eversion of the
cartilage of the
nictitating membrane,
generalised demodicosis,
medial canthal pocket syndrome, refractory...
- eyeball,
restricting movement. It is the
vestigial remnant of the
nictitating membrane (the "third eyelid")
which is
drawn across the eye for protection...
- sharks.
Members of this
order are
characterized by the
presence of a
nictitating membrane over the eye, two
dorsal fins, an anal fin, and five gill slits....
-
especially in
animals without eyelids. In
squamate reptiles both the
nictitating membrane and the
eyelids have been
suggested as the
evolutionary origin of...
