Cell membranes have a ____ structure with the polar head groups of the phospholipids facing toward the aqueous environment and the ____ facing toward the interior of the membrane

a. bilayer, hydrophilic tails
b. bilayer, hydrophobic tails
c. micellar, hydrophilic tails
d. liposomal, hydrophilic tails
e. liposomal, hydrophobic tails


B

Anatomy & Physiology

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Match the action with the specific reflex.Allows for the coordinated contraction and relaxation of opposing muscle groups

A. Golgi tendon reflex B. Reciprocal innervation C. Withdrawal reflex D. Crossed extensor reflex E. Stretch reflex

Anatomy & Physiology

Enlarged blood vessels of the anal columns are called

A. diarrhea. B. flatulence. C. hemorrhoids. D. peritonitis.

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Tissue damage can trigger local release of histamine, which can

A.  stimulate release of nitric oxide, a vasodilator. B.  stimulate release of nitric oxide, a vasoconstrictor. C.  inhibit release of nitric oxide, a vasodilator. D.  inhibit release of nitric oxide, a vasoconstrictor.

Anatomy & Physiology

The four components that are essential for wildlife to live are _______________, ______________, ________________, and ___________________

Fill in the blank(s) with correct word

Anatomy & Physiology