The thickest protein fibers from the following group are

A) neurofilaments.
B) keratin filaments.
C) microfilaments.
D) microtubules.
E) myosin molecules.


D) microtubules.

Anatomy & Physiology

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The absence or inhibition of acetylcholinesterase at a synapse would lead to __________.

A. flaccid paralysis B. continued muscle contraction C. atrophy D. numbness E. muscle wasting

Anatomy & Physiology

The liver and gallbladder are accessory digestive organs

Indicate whether this statement is true or false.

Anatomy & Physiology

Which is a non-membrane-bound organelle?

A.   Microtubule B.   Lysosome C.   Golgi apparatus D.   Rough endoplasmic reticulum E.   Mitochondrion

Anatomy & Physiology

Sudden, painful involuntary contractions of either smooth or skeletal muscle are called

A. spasms. B. convulsions. C. cramps. D. sprains.

Anatomy & Physiology