The primary input to the heart by the cardioinhibitory center is primarily found in the ___________.

A. sinoatrial node and atrioventricular node
B. Purkinje fibers
C. the cardiac contractile fibers
D. bundle of His


Answer: A. sinoatrial node and atrioventricular node

Anatomy & Physiology

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________ is the view that not everything about an organism can be understood or predicted from the knowledge of its components; that is, the whole is greater than the sum of its parts

A) Science B) Naturalism C) Reductionism D) Holism E) Materialism

Anatomy & Physiology

The stimulus for secretion of atrial natriuretic hormone is increased ________.

A. blood pressure in the ventricles of the heart. B. blood pressure in the kidneys' afferent arterioles C. aldosterone production D. blood osmolality E. blood pressure in atria of heart

Anatomy & Physiology

Identify which statement best describes variation in human structure.

a. The common structures learned in anatomy texts are valid for about 50% or less of the human population b. The common structures learned in anatomy texts are valid for about 70% or less of the human population c. All humans have identical internal structures d. Only genetic mutants have variations in their internal structure

Anatomy & Physiology

An articulation is any point at which two bones meet.

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

Anatomy & Physiology