The layers of the alimentary canal, from outside to inside, are the ________.
A. mucosa, muscular, submucosa, and serosa
B. serosa, muscular, submucosa and mucosa
C. mucosa, submucosa, muscular and serosa
D. serosa, muscular, mucosa and submucosa
Answer: B
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The superior, middle, and inferior conchae extend medially from the lateral masses of the ethmoid bone.
Answer the following statement true (T) or false (F)
Answer the following questions true (T) or false (F)
1. The basic function of the parasympathetic nervous system is to maintain homeostasis when the body is at rest. 2. The sympathetic nervous system, or craniosacral division, involves four cranial nerves and sacral nerves S2 - S4. 3. Both preganglionic and postganglionic parasympathetic neurons release acetylcholine at their synapses.
Most cells generate ATP and other high-energy compounds by breaking down carbohydrates, especially
A) ribose. B) galactose. C) sucrose. D) fructose. E) glucose.
Answer the following statements true (T) or false (F)
1. Sensory neurons are also called efferent neurons. 2. One of the most common types of brain tumors develops from glia cells. 3. Astrocytes produce myelin for the cells of the central nervous system. 4. Microglia help protect the brain by eating microbes that may enter the brain. 5. Oligodendrocytes are important in the formation of the blood brain barrier.