A certain drug decreases heart rate by producing hyperpolarization in the pacemaker cells of the heart. This drug probably binds to
A) muscarinic receptors.
B) alpha adrenergic receptors.
C) beta receptors.
D) nicotinic receptors.
A) muscarinic receptors.
Anatomy & Physiology
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The ossicles of the middle ear comprise three small bones: the ________
Fill in the blank(s) with correct word
Anatomy & Physiology
Which of the following is under voluntary control?
A. Smooth muscle B. Cardiac muscle C. Varicose muscle D. Skeletal muscle E. Visceral muscle
Anatomy & Physiology
The ________ of the spinal nerves are the portions that participate in the formation of nerve plexuses.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Which one of the following vitamins is fat soluble, can be stored, and has the potential to be toxic?
A) Vitamin A B) Niacin (B3) C) Riboflavin (B2) D) Vitamin C
Anatomy & Physiology