________ are hollow tubes made of spherical protein subunits called tubulins.

Fill in the blank(s) with the appropriate word(s).


Microtubules

Anatomy & Physiology

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The earlike extension of the atrium is the

A) ventricle. B) coronary sinus. C) coronary sulcus. D) auricle. E) atricle.

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What is the roughened surface on the humerus where the deltoid muscle attaches?

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Microtubule-associated proteins that stabilize the tubules are called __________

Fill in the blank with correct words.

Anatomy & Physiology