This gland produces the hormone calcitonin
A) parathyroid B) pancreas C) thyroid D) pituitary
Answer: C
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What is an aponeurosis?
A. A flat sheet of connective tissue used for muscle insertion B. A round tendonlike structure attaching muscle to bone C. A thin layer of muscle used to attach two other muscles together D. A fibrous, perpendicular insertion between successive sheets or blocks of muscle E. A narrow, vertical, fibrous strip used to attach muscle sheaths of the left and right rectus abdominis
Place the following steps in the correct order for transduction of a chemical odorant into a nerve signal
1. Odorants reach receptors in the cilia of olfactory neurons. 2. cAMP opens ions channels that allow sodium and calcium ions to enter the cell. 3. The G-protein activates an enzyme, adenylate cyclase, to convert ATP into cyclic AMP (cAMP). 4. The binding of an odorant activates a G-protein which then detaches from the receptor. 5. The membrane is depolarized. Depolarization that reaches threshold at the axon hillock triggers an action potential and transduction has been achieved. A) 1, 3, 4, 2, 5 B) 1, 4, 3, 2, 5 C) 1, 2, 3, 4, 5 D) 1, 4, 2, 3, 5
Given the following information, what is the pH? ratio of [HCO3]/[CO2] = 20/0.5 pK = 6.1 log of 10 = 1.0 log of 20 = 1.3 log of 40 = 1.6
a. pH = 7.0 b. pH = 7.4 c. pH = 7.1 d. pH = 7.7 e. It is impossible to determine the pH with the information provided.
What are Motor Nerves also know as?
What will be an ideal response?