All visual pigments contain __________ derived from __________.

-retinal; vitamin A
-rhodopsin; vitamin A
-retinal; vitamin D
-rhodopsin; vitamin D


retinal; vitamin A

Anatomy & Physiology

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Which of the following statements is true? The stimulation of beta-adrenergic receptors can lead to 1. an increase in metabolic activity. 2. contraction of airway smooth muscle. 3. the breakdown of triglycerides within adipocytes

A) 1 B) 2 C) 3 D) 1 and 3 E) 1, 2, and 3

Anatomy & Physiology

The more movable end of a muscle is its

A. insertion. B. fulcrum. C. source. D. origin.

Anatomy & Physiology

All cardiac veins empty into the ________, which then empties into the ________.

A. great cardiac vein; superior vena cava B. coronary sinus; right atrium C. coronary sinus; left atrium D. great cardiac vein; right atrium E. inferior vena cava; left atrium

Anatomy & Physiology

The atrioventricular valve between the left atrium and the left ventricle is known as the ____ valve

a. tricuspid b. bicuspid c. pulmonary d. aortic

Anatomy & Physiology