Almost half of the body's extracellular fluid is plasma found inside blood vessels
Indicate whether the statement is true or false
F
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The pharynx is an enlargement at the top of the trachea that houses the vocal cords.
Answer the following statement true (T) or false (F)
Which choice describes the activation steps of a G protein-coupled receptor properly (and in correct order)?
A. Ligand binds to receptor, G protein activated, effector protein activated, second messenger made available B. Ligand binds to receptor, second messenger activated, G protein turned on, protein kinase activated C. Protein kinase activated, ion channel opened, ions enter and activate second messenger, G protein turned on D. Ion channel opened, G protein activated, second messenger synthesized, phosphatase ends signal
The fourth ventricle is in the
A) left cerebral hemisphere. B) brainstem. C) right cerebral hemisphere. D) midline of the brain, beneath the corpus callosum.
Progesterone can bind to receptors for which hormone that, when released, activates water retention?
a)aldosterone b)ADH c)PTH d)ANH