Which of the following types of tissues contains multinucleated cells whose movements are under voluntary control?
a) skeletal muscle
b) smooth muscle
c) cardiac muscle
d) transitional epithelium
e) areolar tissue
Answer: a
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Why do asthma sufferers often use inhalers that contain sympathomimetics to ease their symptoms?
A. Sympathomimetics suppress release of norepinephrine and epinephrine. B. The drugs are antagonists that bind to adrenergic receptors in the bronchial tubes without stimulating them. C. The drugs are agonists that stimulate adrenergic receptors in the bronchial tubes. D. The sympathomimetics bind to muscarinic receptors and block them. E. Sympathomimetics enhance the release of acetylcholine from preganglionic and postganglionic neurons.
The most common type of fluids used for replacement is ________________
Fill in the blank(s) with correct word
Identify the organelle that provides enzymes for autolysis.
A. Peroxisomes B. Mitochondria C. Lysosomes D. Golgi apparatus E. Smooth ER
Identify the basic characteristics of polysynaptic reflexes
A) All polysynaptic reflexes do not use interneurons, only involve one spinal segment, involve reciprocal inhibition, and have converging circuits. B) All polysynaptic reflexes use interneurons, only involve one spinal segment, do not involve reciprocal inhibition, and have diverging circuits. C) All polysynaptic reflexes do not use interneurons, involve more than one spinal segment, do not involve reciprocal inhibition, and use serial processing. D) All polysynaptic reflexes use interneurons, involve more than one spinal segment, do not involve reciprocal inhibition, and use parallel processing. E) All polysynaptic reflexes use interneurons, involve more than one spinal segment, involve reciprocal inhibition, and have reverberating circuits.