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- G cellA G cell or gastrin cell is a type of cell in the stomach and duodenum that secretes gastr
- G protein-gated ion channelG protein-gated ion channels are a family of transmembrane ion channels in neurons and atr
- GABA receptorReceptors that respond to gamma-aminobutyric acid
- GABA transporterGABA transporters (gamma-aminobutyric acid transporters) are a family of neurotransmitter
- GABAA receptorIonotropic receptor and ligand-gated ion channel
- GABAB receptorG-protein coupled receptor
- GABAergicIn molecular biology and physiology, something is GABAergic or GABAnergic if it pertains t
- GABBR1Gamma-aminobutyric acid B receptor, 1 (GABAB1), is a G-protein coupled receptor subunit en
- GABBR2Gamma-aminobutyric acid (GABA) B receptor, 2 (GABAB2) is a G-protein coupled receptor subu
- Gabriel ZadaAmerican neurosurgeon
- Gait (human)Pattern of limb movements made during locomotion
- GalaninPharmaceutical compound
- Gamma delta T cellT cell subset
- Gamma globulinGamma globulins are a class of globulins, identified by their position after serum protein
- Gamma motor neuronLower motor neuron involved in muscle contraction
- Gamma waveNeural oscillation in the 25–140Hz range
- Ganglion cell layerIn the anatomy of the eye, the ganglion cell layer (ganglionic layer) is a layer of the re
- Ganglion mother cellGanglion mother cells (GMCs) are cells involved in neurogenesis, in non-mammals, that divi
- GanglioneuromaGanglioneuroma (occasionally called a "ganglioma") is a rare and benign tumor of the auton
- Ganglionic eminenceThe ganglionic eminence (GE) is a transitory structure in the development of the nervous s
- Gap junctionCell-cell junction composed of innexins or connexins
- Gartner's ductGartner's duct, also known as Gartner's canal or the ductus longitudinalis epoophori, is a
- Gastric chief cellType of gastric gland cell
- Gastric glandsGlands in lining of the human stomach
- Gastric lipaseGastric lipase, also known as LIPF, is an enzymatic protein that, in humans, is encoded by
- Gastric mucosaMucous membrane layer of the stomach
- GastrinMammalian protein found in Homo sapiens
- Gastrocnemius muscleCalf muscle
- Gastrocolic reflexReflex of the gastrointestinal tract in humans and other mammals
- Gastroileal reflexThe gastroileal reflex is one of the three extrinsic reflexes of the gastrointestinal trac
- Gastrointestinal hormoneThe gastrointestinal hormones (or gut hormones) constitute a group of hormones secreted by
- Gastrointestinal physiologyStudy of the physical function of the gut
- Gastrointestinal wallDigestive system structure
- Gastrosplenic ligamentLigament between stomach and spleen
- Gating (electrophysiology)In electrophysiology, the term gating refers to the opening (activation) or closing (by de
- Gaze (physiology)Coordinated motion of the eyes and neck in physiology
- GCaMPGenetically encoded calcium indicator
- GCNT2N-acetyllactosaminide beta-1,6-N-acetylglucosaminyl-transferase is an enzyme that in human
- Gemelli musclesTwo small muscular fasciculi, accessories to the tendon of the internal obturator muscle
- Gene expression profilingDetection of mRNA molecules
- General visceral efferent fiberGeneral visceral efferent fibers (GVE), visceral efferents or autonomic efferents are the
- GenioglossusMuscle of the tongue
- Geniohyoid muscleMuscle of the head
- Genital branch of genitofemoral nerveThe genital branch of the genitofemoral nerve, also known as the external spermatic nerve
- Genital ridgeDevelopmental precursor to the gonads in an embryo
- Genital tubercleBody of tissue present in the development of the reproductive system
- Genitofemoral nerveMixed branch of the lumbar plexus
- GephyrinType of protein
- Germ cellGamete-producing cell
- Germ line theoryProposed explanation for immunoglobulin diversity
- Germinal centerGerminal centers or germinal centres (GCs) are transiently formed structures within B cell
- Gestational sacCavity of fluid surrounding an embryo
- GHB receptorGHB receptor coding gene in the species Homo sapiens
- Gi alpha subunitGi protein alpha subunit is a family of heterotrimeric G protein alpha subunits. This fami
- Giacomini veinVein of the lower limb
- Giant platelet disorderMedical condition
- Gingival sulcusIn dental anatomy, the gingival sulcus is an area of potential space between a tooth and t
- Giuseppe BazzaniGiuseppe Bazzani (23 September 1690 – 17 August 1769) was an Italian painter of the Rococo
- Giuseppe MoruzziGiuseppe Moruzzi (July 30, 1910 – March 11, 1986) was an Italian neurophysiologist. He was
- Gla domainVitamin K-dependent carboxylation/gamma-carboxyglutamic (GLA) domain is a protein domain t
- GlansAnatomical structure in mammals
- Glanzmann's thrombastheniaMedical condition
- Glia limitansThin astrocyte membrane surrounding the brain and spinal cord
- Glial fibrillary acidic proteinGlial fibrillary acidic protein (GFAP) is a protein that is encoded by the GFAP gene in hu
- GLICThe GLIC receptor is a bacterial (Gloeobacter) Ligand-gated Ion Channel, homolog to the ni
- GliogenesisGliogenesis is the generation of non-neuronal glia populations derived from multipotent ne
- GliosisCellular response to brain injury involving glial cells
- GliotransmitterGliotransmitters are chemicals released from glial cells that facilitate communication bet
- Global neurosurgeryGlobal health subspecialty
- Globose nucleusThe globose nucleus is one of the deep cerebellar nuclei. It is located medial to the embo
- Globular proteinSpherical, water-soluble type of protein
- GlobulinFamily of globular proteins
- Globus pallidusStructure of the basal ganglia of the brain
- Glomerular filtration rateRenal function test
- Glomerulus (cerebellum)The cerebellar glomerulus is a small, intertwined mass of nerve fiber terminals in the gra
- Glomerulus (kidney)Functional unit of nephron
- Glomerulus (olfaction)Structure in the brain's olfactory bulb
- Glossopharyngeal nerveCranial nerve IX, for the tongue and pharynx
- GLRBGlycine receptor subunit beta is a protein that in humans is encoded by the GLRB gene.
- GlucagonPeptide hormone
- Glucose meterMedical device for determining the concentration of glucose in the blood
- Glutamate (neurotransmitter)Anion of glutamic acid in its role as a neurotransmitter
- Glutamate transporterFamily of neurotransmitter transporter proteins
- GlutamatergicGlutamatergic means "related to glutamate". A glutamatergic agent (or drug) is a chemical
- Gluteal musclesGroup of three muscles which make up the buttocks
- Gluteus mediusOne of the three gluteal muscles
- Gluteus minimusSmallest of the three gluteal muscles
- Glycerol phosphate shuttleNADH transport mechanism in mitochondria
- Glycerol-3-phosphate dehydrogenaseGlycerol-3-phosphate dehydrogenase (GPDH) is an enzyme that catalyzes the reversible redox
- GlyceroneogenesisMetabolic pathway
- Glycine cleavage systemEnzymes that break down glycine
- Glycine receptorWidely distributed inhibitory receptor in the central nervous system
- Glycine receptor, alpha 1Glycine receptor subunit alpha-1 is a protein that in humans is encoded by the GLRA1 gene.
- Glycogen phosphorylaseGlycogen phosphorylase is one of the phosphorylase enzymes (EC 2.4.1.1). Glycogen phosphor
- GlycogenesisPolymerisation of glucose molecules into glycogen
- GlycogenolysisBreakdown of glycogen
- Glycoprotein Ib-IX-V complexThe GPIb-IX-V complex is a profuse membrane receptor complex originating in megakaryocytes
- GlycosuriaMedical condition
- Glymphatic systemSystem for waste clearance in the brain
- Goblet cellEpithelial cells that secrete mucins
- Goldman equationGeneralization of the Nernst equation for the membrane potential
- Golgi cellIn neuroscience, Golgi cells are the most abundant inhibitory interneurons found within th
- Golgi tendon organProprioceptive sensory receptor organ
- Golgi tendon reflexMuscular function
- Golgi's methodSilver staining technique for visualizing nervous tissue under light microscopy
- GonadGland that produces sex cells
- GonadorelinGonadorelin is a gonadotropin-releasing hormone agonist (GnRH agonist) which is used in fe
- Gonadotropic cellCell type
- GonadotropinGlycoprotein polypeptide hormones
- Gonadotropin-releasing hormoneMammalian protein found in Homo sapiens
- GPCR oligomerA GPCR oligomer is a protein complex that consists of a small number (ὀλίγοι oligoi "a few
- GPR139G-protein coupled receptor 139 (GPC139) is a protein that in humans is encoded by the GPR1
- Gq alpha subunitGq protein alpha subunit is a family of heterotrimeric G protein alpha subunits. This fami
- Gracilis muscleMost superficial muscle on the medial side of the thigh
- Graded potentialChanges in membrane potential varying in size
- Granule cellType of neuron with a very small cell body
- GranulinGranulin is a protein that in humans is encoded by the GRN gene. Each granulin protein is
- GranulocyteCategory of white blood cells
- Granulocyte-macrophage colony-stimulating factorMammalian protein found in Homo sapiens
- GranulopoiesisFormation of granulocyte cells in the bone marrow
- Gray platelet syndromeMedical condition
- Gray ramus communicansEach spinal nerve receives a branch called a gray ramus communicans (pl.: rami communicant
- Gray's AnatomyTextbook on human anatomy
- Great auricular nerveCutaneous nerve of the head
- Great cardiac veinThe great cardiac vein (left coronary vein) is a vein of the heart. It begins at the apex
- Great cerebral veinBlood vessel
- Great saphenous veinSuperficial vein of the leg
- Greater omentumFat sheath under abdominal wall
- Greater palatine arteryThe greater palatine artery is a branch of the descending palatine artery (a terminal bran
- Greater palatine nerveBranch of the pterygopalatine ganglion
- Greater sciatic foramenThe greater sciatic foramen is an opening (foramen) in the posterior human pelvis. It is f
- Greater trochanterQuadrilateral part of the thigh bone
- Greater tubercleThe greater tubercle of the humerus is the outward part the upper end of that bone, adjace
- Greater wing of sphenoid boneLarge part of the skull front behind the eye socket
- Green nail syndromeMedical condition
- Grey columnsThree columns of grey matter within the spinal cord
- Grey ColumnsGrey Columns, at 399 Old Montgomery Rd. in Tuskegee, Alabama, was built as a plantation ho
- Grey matterAreas of neuronal cell bodies in the brain
- GRIA2Glutamate ionotropic receptor AMPA type subunit 2 (Glutamate receptor 2, or GluR-2) is a p
- Grid cellType of neuron
- Gross anatomyStudy of anatomy at the macroscopic level
- Group A nerve fiberOne of three classes of nerve fiber
- Group C nerve fiberOne of three classes of nerve fiber in the nervous system
- Growth coneLarge actin extension of a developing neurite seeking its synaptic target
- Growth hormone–releasing hormoneMammalian protein found in Homo sapiens
- Guanylate cyclaseGuanylate cyclase (EC 4.6.1.2, also known as guanyl cyclase, guanylyl cyclase, or GC; syst
- GubernaculumEmbryonic structure
- Guidepost cellsCells that assist in the subcellular organization of both neural axon growth and migration
- Guillaume DupuytrenGuillaume Dupuytren, Baron Dupuytren (, , French: ; 5 October 1777 – 8 February 1835) was
- Gustatory cortexBrain structure responsible for perception of taste
- Gustatory nucleusRostral part of the solitary nucleus located in the medulla
- Gut-associated lymphoid tissueTissue
- Gut–brain axisBiochemical signaling between the gastrointestinal tract and the central nervous system
- GyrificationFormation of the folds of the brain's cerebral cortex
- GyrusRidge on the cerebral cortex of the brain
