Explain how thyroid hormones bind with receptors associated with their target cells
What will be an ideal response?
Thyroid hormones are amino acid-based hormones, but their amino acids are nonpolar and hydrophobic. Therefore, thyroid hormones do not bind to cell-surface receptor proteins. Instead, they diffuse into target cells and then bind to intracellular receptors in the nucleus. Like steroid hormones, the thyroid hormones either activate or inactivate the transcription of certain genes.
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Which muscle(s) is/areĀ notĀ involved with inspiration?
A. Pectoralis minor B. Diaphragm C. Sternocleidomastoid D. External intercostals E. Rectus abdominis
What is the target organ of thyrotropic hormone (TH), or thyroid-stimulating hormone (TSH)?
A) adrenal B) pineal C) pituitary D) thyroid
Just anterior to the sternocleidomastoid about midway along its length you can palpate this artery
A) external carotid B) facial C) maxillary D) mandibular
Magnesium atoms have two electrons in the outermost shell and chlorine atoms have seven. The compound magnesium chloride would contain
A) 1 magnesium and 1 chlorine. B) 1 magnesium and 2 chlorine. C) 2 magnesium and 1 chlorine. D) 2 magnesium and 7 chlorine. E) impossible to tell without more information