Which of the following activities represents an anatomical study?

-making a section through the heart to observe it's interior
-testing the pituitary for hormone function
-studying how the muscles contract
-studying how the nerves conduct electrical impulses


-making a section through the heart to observe it's interior

Anatomy & Physiology

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In a sexually mature individual, pulses of GnRH are secreted once a day

Indicate whether the statement is true or false

Anatomy & Physiology

An action potential in a neuronal membrane differs from a graded potential in that

A. movement of Na+ and K+ across cell membranes mediate action potentials, while graded potentials do not involve movement of Na+ and K+. B. an action potential is propagated without decrement, whereas a graded potential decrements with distance. C. an action potential has a threshold, whereas a graded potential is an all-or-none phenomenon. D. action potentials vary in size with the size of a stimulus, while graded potentials do not. E. an action potential requires the opening of Ca2+ channels, whereas a graded potential does not.

Anatomy & Physiology

Sucrose is a ________.

A) monosaccharide B) disaccharide C) polysaccharide D) triglyceride

Anatomy & Physiology

Cystic fibrosis is caused by abnormal

a. accumulation of mucus b. levels of insulin c. chloride channels in plasma membranes d. potassium channels in plasma membranes e. sodium-potassium pumps

Anatomy & Physiology