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Film, tear
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Film, tearThe liquid layer bathing the cornea and conjunctiva. It creates a perfectly smooth liquid outer layer that polishes the corneal surface, mechanically traps and flushes out foreign bodies and chemicals, contains bacteriostatic substances that inhibit the growth of microorganisms, and reduces the surface friction associated with eyelid blinking and eye movement.
RELATED TERMS--------------------------------------
Cornea
The front part of the eye that acts as a window for the entrance of light rays. It is attached to the other outer coat of the eye, the sclera; the white part of the eye. The cornea provides a significant amount of focusing power for the eye (the rest is provided by the lens). Because it has many nerve fibers, an injury or foreign body causes significant pain and discomfort.
Conjunctiva
The membrane lining the eyelids and covering the eyeball.
Corneal
Pertaining to the cornea, the clear front window of the eye that transmits and focuses light into the eye.
Bacteriostatic
Able to inhibit the growth and reproduction of at least some types of bacteria.
Eyelid
The lid or cover of the eye, a movable fold of skin and muscle that can be closed over the eyeball or opened at will. Each eye has an upper and a lower lid. An eyelid is also called a palpebra.
SIMILAR TERMS--------------------------------------
Film
Slang shortening of X-ray film, an X-ray, a radiograph.
Film, AP
An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
Film, lateral
An X-ray picture taken from the side.
Film, PA
An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
PREVIOUS AND NEXT TERMS--------------------------------------
Filler
An inactive substance used to make a product bigger or easier to handle. For example, fillers are often used to make pills or capsules because the amount of active drug is too small to be handled conveniently.
Film
Slang shortening of X-ray film, an X-ray, a radiograph.
Film, AP
An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
Film, lateral
An X-ray picture taken from the side.
Film, PA
An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
Film, tear
Filoviridae
A family of viruses that cause hemorrhagic fever. Filoviruses have single- stranded RNA as their genetic material. Ebola virus and the Marburg virus are both filoviruses.
Filovirus
A family of viruses that cause hemorrhagic fever. Filoviruses have single- stranded RNA as their genetic material. Ebola virus and the Marburg virus are both filoviruses.
Finger prick
A procedure in which a finger is pricked with a lancet to obtain a small quantity of capillary blood for testing. Also called a finger stick.
Finger stick
A procedure in which a finger is pricked with a lancet to obtain a small quantity of capillary blood for testing. Also called a finger prick.
Fingernail
A fingernail is produced by living skin cells in the finger. A fingernail consists of several parts including the nail plate (the visible part of the nail), the nail bed (the skin beneath the nail plate), the cuticle (the tissue that overlaps the plate and rims the base of the nail), the nail folds (the skin folds that frame and support the nail on three sides), the lunula (the whitish half-moon at the base of the nail) and the matrix (the hidden part of the nail unit under the cuticle).
RELATED TERMS--------------------------------------
Cornea
The front part of the eye that acts as a window for the entrance of light rays. It is attached to the other outer coat of the eye, the sclera; the white part of the eye. The cornea provides a significant amount of focusing power for the eye (the rest is provided by the lens). Because it has many nerve fibers, an injury or foreign body causes significant pain and discomfort.
Conjunctiva
The membrane lining the eyelids and covering the eyeball.
Corneal
Pertaining to the cornea, the clear front window of the eye that transmits and focuses light into the eye.
Bacteriostatic
Able to inhibit the growth and reproduction of at least some types of bacteria.
Eyelid
The lid or cover of the eye, a movable fold of skin and muscle that can be closed over the eyeball or opened at will. Each eye has an upper and a lower lid. An eyelid is also called a palpebra.
SIMILAR TERMS--------------------------------------
Film
Slang shortening of X-ray film, an X-ray, a radiograph.
Film, AP
An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
Film, lateral
An X-ray picture taken from the side.
Film, PA
An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
PREVIOUS AND NEXT TERMS--------------------------------------
Filler
An inactive substance used to make a product bigger or easier to handle. For example, fillers are often used to make pills or capsules because the amount of active drug is too small to be handled conveniently.
Film
Slang shortening of X-ray film, an X-ray, a radiograph.
Film, AP
An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front.
Film, lateral
An X-ray picture taken from the side.
Film, PA
An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
Film, tear
Filoviridae
A family of viruses that cause hemorrhagic fever. Filoviruses have single- stranded RNA as their genetic material. Ebola virus and the Marburg virus are both filoviruses.
Filovirus
A family of viruses that cause hemorrhagic fever. Filoviruses have single- stranded RNA as their genetic material. Ebola virus and the Marburg virus are both filoviruses.
Finger prick
A procedure in which a finger is pricked with a lancet to obtain a small quantity of capillary blood for testing. Also called a finger stick.
Finger stick
A procedure in which a finger is pricked with a lancet to obtain a small quantity of capillary blood for testing. Also called a finger prick.
Fingernail
A fingernail is produced by living skin cells in the finger. A fingernail consists of several parts including the nail plate (the visible part of the nail), the nail bed (the skin beneath the nail plate), the cuticle (the tissue that overlaps the plate and rims the base of the nail), the nail folds (the skin folds that frame and support the nail on three sides), the lunula (the whitish half-moon at the base of the nail) and the matrix (the hidden part of the nail unit under the cuticle).
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This dictionary contains 19186 terms.
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