If you have not signed up for the NASM FNS yet, you can do so here to save 20%.
If you are unsure which nutrition certification is right for you, I recommend that you take the quiz or check out my article on the top nutrition certifications. This is especially true because the FNS is slightly out of date.
Important definitions to memorize forย chapter 10 of the NASM FNS
Calcitonin ~ Aย hormoneย secreted by theย thyroid glandย in response to elevated bloodย calcium. It stimulatesย calciumย deposition in bone andย calciumย excretion by the kidneys,ย thereforeย reducing the bloodย calcium concentration
Calmodulin ~ A calcium-binding protein that regulates a range of cellular activities, like cellular division and proliferation
Carotenodermia ~ A harmless yellow-orange cast to the skin because of high levels of carotenoids within the blood resulting from consumption of very large amounts of carotenoid-rich foods, like carrot juice
Carotenoids ~ย are a groupย of yellow, orange, and red pigments in plants andย foods.ย severalย of theseย compounds are precursors ofย vitamin A
Cells ~ the fundamental structural units of all living tissues, that have 2 major parts: the nucleus and the cytosol
Cornea ~ The clear outer surface of the eye
Epithelial Cells ~ Theย multimillion number ofย cells that line andย shieldย the external and internal surfaces of the boy.ย Epithelialย cellsย formย epithelialย tissuesย likeย skin andย mucousย membranes.
Epithelial Tissues ~ Closely packed layers of epithelial cells that cowl the body and line its cavities
Glutathione ~ A tripeptide of glycine, cysteine, and glutamic acid that is involved in the protection of cells from oxidative cellular damage
Glutathione Peroxidase ~ A selenium-containing enzyme that promotes the breakdown of fatty acids that have undergone peroxidation
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Goblet Cells ~ย one ofย the variousย varieties ofย specialized cells thatย manufactureย and secreteย mucus. These cells are foundย within theย stomach, intestines, andย partsย of theย respiratory tract.
Hemolysis ~ The breakdown of red blood cellsย that usuallyย happensย atย the endย of a red blood cell’sย normalย lifetime. Thisย methodย releasesย hemoglobin.
Hyperkeratosis ~ Excessive accumulation of theย proteinย keratinย that produces rough andย bumpyย skin,ย most ordinarilyย affectingย the palms and soles,ย alsoย as flexure areas (elbows, knees, wrists, ankles). Itย willย affectย wetย epithelialย tissues and impair their ability to secreteย mucus.ย Additionallyย known asย hyperkeratinization
Iodopsin ~ Color-sensitive pigment molecules in cone cells that comprise opsin-like proteins combined with retinal
Lipid Peroxidation ~ Production of unstable, extremely reactive lipid molecules that contain excess amounts of oxygen
Menadione ~ย is a meditativeย type ofย vitamin Kย that mayย beย toxicย to infants.ย Additionally,ย referred to asย vitamin K3
Menaquinones ~ย varieties ofย naphthoquinone (Vitamin K)ย from animal sources.ย Additionallyย createdย byย entericย microbes,ย they’reย conjointlyย referred to asย vitaminK2
Night-Eating Syndrome (NES) ~ a disorder of eating during which a habitual pattern of interrupting sleep to eat is the primary symptom
Opsin ~ A protein that mixes with retinal synthesize rhodopsin in rod cells
Orexin ~ย a kindย ofย hormoneย in theย brainย that mayย affectย food consumption
Osteoblasts ~ Bone cells that promote human bone deposition and growth
Osteoclasts ~ Bone cells that promote human bone reabsorption and calcium ion mobilization
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Osteomalacia ~ A illness in adults that results from vitamin D deficiency; it’s marked by softening of the bones resulting in bending of the spine, bowing of the legs, and enhanced risk for fractures
Osteoporosis ~ A bone sickness characterized by a decrease in bone mineral density as well as the appearance of smallish holes in bones due in part to the loss of minerals
Parathyroid Hormone ~ Aย hormoneย secreted by theย parathyroid glandย glands in response to low bloodย calcium concentration. It stimulatesย calcium ionย releaseย from bone andย calciumย absorption by the intestines,ย whereasย decreasingย calcium ionย excretion by the kidneys. It acts in conjunction withย 1.25(OH)2D3ย to liftย bloodย calcium ion concentration.ย Additionallyย known asย parathormone-1
Phylloquinone ~ย is the formย ofย vitamin K (naphthoquinone)ย that comes from plant sources.ย Additionallyย referred to asย vitamin K1(phylloquinone)
Preformedย vitamin A ~ Retinyl esters,ย the primaryย storageย type ofย vitamin A.ย concerningย ninety percentย %ย of dietaryย vitamin A1ย isย in theย form ofย esters,ย principallyย found in foods from animal sources.
Provitamin A ~ carotenoid precursors of vitamin A in foods of plant origin, primarily deeply colored fruits and vegetables
Provitamins ~ Inactiveย types ofย vitamins that the bodyย willย convert into active, usable forms.ย Additionallyย statedย asย nutrimentย precursors.
Retina ~ A paper-thin tissue that linesย the rearย ofย the eyeย and contains cellsย calledย rods and cones.
Retinal ~ The aldehyde type of nutriment; one among the retinoids; the active type of vitamin A in the photoreceptors of the retina; interconvertible with vitamin A1
Retinoic Acid ~ The acidย form ofย vitaminย A,ย one amongย the retinoids;ย formedย from retinal,ย howeverย not interconvertible; helps growth, cell differentiation,ย and theย immune system;ย doesn’tย haveย a roleย in vision orย sexual reproduction.
Retinoids ~ Compounds in foods that have chemical structures almost like vitamin A. Retinoids include the active types of vitamin A (retinol, retinal, and retinoic acid) and the main storage kinds of vitamin A1 (retinyl esters)
Retinol ~ The alcohol type of vitamin A; one amongst the retinoids; thought to be the most physiologically active variety of vitamin A; interconvertible with retinal
Retinol Activity Equivalents (RAE) ~ A unit measuring a food’s vitamin A content. One RAE equalsย oneย mg ofย vitamin A1.
Retinol-Binding protein (RBP) ~ A carrier polypeptide that binds to vitamin A1 and transports it within the blood from the liver to destination cells
Retinyl Esters ~ย the primaryย storageย type ofย vitaminย A,ย one amongย the retinoids. Retinyl esters areย vitamin A1ย combined with fatty acids,ย typicallyย palmitate.ย Additionally referred to asย preformedย vitamin A, a fat-soluble vitamin.
Rhodopsin ~ Found in rod cells, a photosensitive pigment molecule that consists of a peptide known as opsin combined with retinal
Rickets ~ A bone sickness in kids that results from calciferol deficiency
Stem Cells ~ A embryonic cell whose daughter cells can differentiate into different cell types
Teratogen ~ Any substance that causes birth defects
Thaumatin ~ Mixture of sweet-tasting proteins from a West African fruit.ย Aboutย 2,000 times sweeter thanย saccharoseย andย features aย licoriceย aftersensation. Breaks downย onceย heated toย cookingย temperatures
Tocopherol ~ The chemical name for vitamin E. There are four tocopherols (alpha, beta, gamma, delta), however solely alpha-tocopherol is active within the body
Tocotrienols ~ Four compounds (alpha, beta, gamma, delta) with chemicals associated with tocopherols. The tocotrienols and tocopherols are jointly referred to as vitamin E
Precursor ~ A substanceย that’sย convertedย into another active substance.ย Proteinย precursorsย are also known asย proenzymes.
Tyler Read
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