Other features described include an inner eyelid, or nictitating membrane, which protects their vision from bright lights, an adaptation for their bright, hot home world.
42.
Members of this order are characterized by the presence of a nictitating membrane over the eyes, two dorsal fins, an anal fin, and five gill slits.
43.
Cats have a second eyelid, the nictitating membrane, which is a thin cover that closes from the side and appears when the cat's eyelid opens.
44.
Members of the orders are characterized by the presence of a nictitating membrane over the eye, two dorsal fins, an anal fin, and five gill slits.
45.
The milk shark has a slender build with a long, pointed snout, large, round eyes with nictitating membranes ( protective third eyelids ), and no spiracles.
46.
Do whales have eyelids, like most land-dwelling species, or just a clear nictitating membrane like fish do ? orate 13 : 37, 27 November 2006 ( UTC)
47.
Members of the order are distinguished by possessing two dorsal fins, an anal fin, five gill slits, eyes without nictitating membranes, and a mouth extending behind the eyes.
48.
"' Cherry eye "'is a disorder of the nictitating membrane ( NM ), also called the third eyelid, present in the eyes of dogs and cats.
49.
Ganglion-blocking effects of MLA were observed using the cat nictitating membrane preparation : complete inhibition of the response was produced by 4 mg / kg of " mellictine " given intravenously.
50.
:While the reference desk does not give veterinary advice, Wikipedia does have an article on nictitating membrane .-- talk ) 10 : 44, 9 November 2011 ( UTC)
