In which of the following forms does Ca2+ exhibit profound effects on such things as neuromuscular excitability?

a. free, unbound diffusible Ca2+
b. intracellular Ca2+
c. calcium phosphate crystals impregnated in the organic matrix of bone
d. calcium bound to plasma proteins
e. insoluble Ca2+ salts


A

Anatomy & Physiology

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Answer the following statement true (T) or false (F)

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Sometimes, when it is difficult to initiate a knee-jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and

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Why is it important for impulses from the atria to be delayed at the AV node before they pass into the ventricles?

What will be an ideal response?

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A bent nasal septum that slows or prevents sinus drainage is known clinically as a ________ septum

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Anatomy & Physiology