What valve prevents the backflow of blood from the right ventricle into the right atrium?
What will be an ideal response?
Right atrioventricular valve (tricuspid valve)
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While assisting in the emergency removal of a small toy from a young child's piriform recess, the attending physician asks you to tell him what nerve might be injured if the mucosa lining the recess is penetrated. You reply the:
A) vagus nerve. B) glossopharyngeal nerve. C) lingual nerve. D) internal laryngeal nerve. E) spinal accessory nerve.
Dural sinuses contain
A) air. B) mucous. C) serous fluid. D) venous blood.
Which of the following is not a receptor modality based on stimulus type?
A. Chemoreceptor B. Nociceptor C. Mechanoreceptor D. Interoceptor E. Thermoreceptor
Which of the following hormones is synthesized by the hypothalamus?
A. ADH (antidiuretic hormone) B. MSH (melanocyte stimulating hormone) C. TSH (thyroid stimulating hormone) D. ACTH (adrenocorticotropic hormone) E. T3 and T4