any of several closely related compounds that are produced by the thyroid gland and are active metabolically
thyrocalcitonin
Noun
thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
thyroxine
Noun
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
thyroxin
Noun
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
tetraiodothyronine
Noun
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
triiodothyronine
Noun
thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity
teardrop
Noun
a drop of the clear salty saline solution secreted by the lacrimal glands
teardrop
Noun
anything shaped like a falling drop (as a pendant gem on an earring)
tissue layer
Noun
a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
tobacco juice
Noun
saliva colored brown by tobacco (snuff or chewing tobacco)
transforming gene
Noun
a gene that disposes normal cells to change into cancerous tumor cells
transgene
Noun
an exogenous gene introduced into the genome of another organism
tumor suppressor gene
Noun
a suppressor gene that blocks unscheduled cell division
telocentric chromosome
Noun
a chromosome like a straight rod with the centromere in terminal position
tract
Noun
a bundle of myelinated nerve fibers following a path through the brain
tract
Noun
a system of body parts that together serve some particular purpose
tract
Noun
a brief treatise on a subject of interest
tract
Noun
an extended area of land
target cell
Noun
an abnormal red blood cell with the appearance of a dark ring surrounding a dark center
target cell
Noun
any cell that has a specific receptor for an antigen or antibody or hormone or drug, or is the focus of contact by a virus or phagocyte or nerve fiber etc.
third cranial nerve
Noun
supplies extrinsic muscles of the eye
trochlear
Noun
either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
trochlear nerve
Noun
either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
thalamus
Noun
large egg-shaped structures of grey matter that form the dorsal subdivision of the diencephalon
tenth cranial nerve
Noun
a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera
temporal gyrus
Noun
any of the convolutions of the outer surface of the temporal lobe of the cerebrum
twelfth cranial nerve
Noun
supplies intrinsic muscles of the tongue and other tongue muscles
third ventricle
Noun
a narrow ventricle in the midplane below the corpus callosum
temporal lobe
Noun
that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head
temporal ccortex
Noun
that part of the cerebral cortex in either hemisphere of the brain lying inside the temples of the head
trochlearis
Noun
either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
trigeminal
Noun
the main sensory nerve of the face and motor nerve for the muscles of mastication
trigeminal nerve
Noun
the main sensory nerve of the face and motor nerve for the muscles of mastication
trigeminus
Noun
the main sensory nerve of the face and motor nerve for the muscles of mastication
telencephalon
Noun
the anterior division of the forebrain
thalmencephalon
Noun
the posterior division of the forebrain
torso
Noun
the body excluding the head and neck and limbs
thyroid cartilage
Noun
the largest cartilage of the larynx
twat
Noun
obscene terms for female genitals
twat
Noun
a man who is a stupid incompetent fool
true vocal cord
Noun
either of the two lower vocal folds that come together to form the glottis
true vocal fold
Noun
either of the two lower vocal folds that come together to form the glottis
trachea
Noun
membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
trachea
Noun
one of the tubules forming the respiratory system of most insects and many arachnids
tuberosity
Noun
a protuberance on a bone especially for attachment of a muscle or ligament
tubercle
Noun
a protuberance on a bone especially for attachment of a muscle or ligament
tubercle
Noun
small rounded wartlike protuberance on a plant
tubercle
Noun
a swelling that is the characteristic lesion of tuberculosis
testis
Noun
one of the two male reproductive glands that produce spermatozoa and secrete androgens