LAT (LABORATORY ANIMAL TECHNICIAN)
CERTIFICATION EXAM ACTUAL EXAM 200 QUESTIONS
AND CORRECT DETAILED ANSWERS(100% VERIFIED
ANSWERS)|AGRADE
Abduction - ANSWER: The movement of a bone away from the mid-line of the body
or
away from the axis of an extremity.
Abomasum - ANSWER: The fourth stomach compartment of a ruminant animal; the
only compartment that secretes digestive enzymes and is thus a true stomach.
Abscess - ANSWER: A localized collection of pus accompanied by swelling in any part
of the body.
Accessory Sex Gland - ANSWER: A gland associated with the urogenital tract;for
example, the prostate and seminal vesicles in males which provide the fluid needed
for sperm transport during ejaculation
Acclimation period - ANSWER: The time given to a newly arrived animal to become
accuslomed to its new surroundings before the research for which it is intended
begins.
Acetylcholine - ANSWER: A naturally occurring substance in the body t hat is involved
i n the transmission of nerve impulses.
Acid - ANSWER: Chemical or solution with a pH below 7.Chemicals that have a very
low pH can cause chemical burns to the skin and should be handled cautiously.
Acquired immunity - ANSWER: Immunity acquired through exposure to an
antigen,which results in the activation of immune cells and the formation of
antibodies to this antigen. Also called active immunity.
Activity cage - ANSWER: A specialized animal unit or cage that allows an animal to
exercise freely while its activity is being recorded or measured
Acute disease - ANSWER: A disease having rapid onset and short duration.
Acute toxicity test - ANSWER: A test in which the test animal receives a single dose of
a test substance.
Adduction - ANSWER: The movement of a bone toward the midline of the body or
toward the axis of an extremity
Ad libitum - ANSWER: Making feed or water availble to the animal at all times
, Adipose tissue - ANSWER: tissue made up of cells that store fatty substances,such as
lipids and fatty acids. Used as a source of energy for the body. Also called fatty tissue
Adjuvant - ANSWER: A substance that enhances the potency of another substance. In
immunology. it is a substance that enhances the immune response to antigens
Adrenaline - ANSWER: A hormone that is secreted by the adrenal medulla into the
blood stream in response to physical or mental stress. such as that caused by fear or
injury. Adrenaline causes a rapid increase in blood pressure. metabolic rate, and
blood glucose concentration. Also called epinephrine.
Adrenergic - ANSWER: A drug, or other subtance that has effects similar to
epinephrine.
Adventitious - ANSWER: Accidental or acquired; not natural or hereditary
Aerosol - ANSWER: A suspension, fine mist. or spray which contains minute particles.
Examples of common aerosolized particles include pollen. medications (as in
inhalation therapy)or pathogens
Agar - ANSWER: A polymer made up of subunits of the sugar galactose that becomes
gelatinous when dissolved in hot water and cooled. Used as medium for culturing
microorganisms
Agonist - ANSWER: A drug capable of stimulating physiologic activity
Agouti - ANSWER: An animal color pattern in which the hairs are dark brown with
yellow bands close to the tips.giving the animal a light brown appearance.
Agranulocyte - ANSWER: A white blood cell that contains a multilobed nucleus and
has microscopic granules in its cytoplasm; types include leukocytes and monocytes.
Air exchange - ANSWER: The number of times per hour the ventilation system
replaces the air in the room.
Albino - ANSWER: A inherited condition marked by the absence of melanin, resulting
in non pigmented skin. coat, and eyes. An albino animal has white fur or feathers
and pink eyes (irises).
Alimentary canal - ANSWER: A long tube extending from the mouth to the anus:
includes organs such as the stomach and intestines. Also called the gastrointestinal
tract.
Allele - ANSWER: One member of a pair of genes that occupies a specific site on a
given chromosome. Alternate form of a gene
CERTIFICATION EXAM ACTUAL EXAM 200 QUESTIONS
AND CORRECT DETAILED ANSWERS(100% VERIFIED
ANSWERS)|AGRADE
Abduction - ANSWER: The movement of a bone away from the mid-line of the body
or
away from the axis of an extremity.
Abomasum - ANSWER: The fourth stomach compartment of a ruminant animal; the
only compartment that secretes digestive enzymes and is thus a true stomach.
Abscess - ANSWER: A localized collection of pus accompanied by swelling in any part
of the body.
Accessory Sex Gland - ANSWER: A gland associated with the urogenital tract;for
example, the prostate and seminal vesicles in males which provide the fluid needed
for sperm transport during ejaculation
Acclimation period - ANSWER: The time given to a newly arrived animal to become
accuslomed to its new surroundings before the research for which it is intended
begins.
Acetylcholine - ANSWER: A naturally occurring substance in the body t hat is involved
i n the transmission of nerve impulses.
Acid - ANSWER: Chemical or solution with a pH below 7.Chemicals that have a very
low pH can cause chemical burns to the skin and should be handled cautiously.
Acquired immunity - ANSWER: Immunity acquired through exposure to an
antigen,which results in the activation of immune cells and the formation of
antibodies to this antigen. Also called active immunity.
Activity cage - ANSWER: A specialized animal unit or cage that allows an animal to
exercise freely while its activity is being recorded or measured
Acute disease - ANSWER: A disease having rapid onset and short duration.
Acute toxicity test - ANSWER: A test in which the test animal receives a single dose of
a test substance.
Adduction - ANSWER: The movement of a bone toward the midline of the body or
toward the axis of an extremity
Ad libitum - ANSWER: Making feed or water availble to the animal at all times
, Adipose tissue - ANSWER: tissue made up of cells that store fatty substances,such as
lipids and fatty acids. Used as a source of energy for the body. Also called fatty tissue
Adjuvant - ANSWER: A substance that enhances the potency of another substance. In
immunology. it is a substance that enhances the immune response to antigens
Adrenaline - ANSWER: A hormone that is secreted by the adrenal medulla into the
blood stream in response to physical or mental stress. such as that caused by fear or
injury. Adrenaline causes a rapid increase in blood pressure. metabolic rate, and
blood glucose concentration. Also called epinephrine.
Adrenergic - ANSWER: A drug, or other subtance that has effects similar to
epinephrine.
Adventitious - ANSWER: Accidental or acquired; not natural or hereditary
Aerosol - ANSWER: A suspension, fine mist. or spray which contains minute particles.
Examples of common aerosolized particles include pollen. medications (as in
inhalation therapy)or pathogens
Agar - ANSWER: A polymer made up of subunits of the sugar galactose that becomes
gelatinous when dissolved in hot water and cooled. Used as medium for culturing
microorganisms
Agonist - ANSWER: A drug capable of stimulating physiologic activity
Agouti - ANSWER: An animal color pattern in which the hairs are dark brown with
yellow bands close to the tips.giving the animal a light brown appearance.
Agranulocyte - ANSWER: A white blood cell that contains a multilobed nucleus and
has microscopic granules in its cytoplasm; types include leukocytes and monocytes.
Air exchange - ANSWER: The number of times per hour the ventilation system
replaces the air in the room.
Albino - ANSWER: A inherited condition marked by the absence of melanin, resulting
in non pigmented skin. coat, and eyes. An albino animal has white fur or feathers
and pink eyes (irises).
Alimentary canal - ANSWER: A long tube extending from the mouth to the anus:
includes organs such as the stomach and intestines. Also called the gastrointestinal
tract.
Allele - ANSWER: One member of a pair of genes that occupies a specific site on a
given chromosome. Alternate form of a gene
