<prompt> Which acts on intracellular receptor:TSHFSHGlucagonEpinephrine  <response>: Ans. A TSHReceptors for Hormones Membrane receptor: They mainly bind peptide hormones and catecholamines Nuclear receptor: Bind small molecules that can diffuse across the cell membrane, such as steroids and vitamin D.Note: Guyton states: Amino acid derivatives and peptide hormones interact with cell surface membrane receptors. Steroids, thyroid hormones, vitamin D and retinoids are lipid soluble and interact with intracellular nuclear receptors.Receptors and their respective hormonesNuclear receptorsThyroxineMn: TOADEstrogenVitamin AVitamin DCytoplasmic receptorsAll steroids except EstrogenCell membrane via G protein stimulationAll others like ACTH, LH, FSH, GH 