What bony arrangement would most effectively resist forces associated with weight bearing?
A. Lamellae of compact bone with collagen fibers arranged in bundles parallel to the long axis of the diaphysis
B. Trabeculae arranged in a random fashion permeated with large marrow spaces
C. A diaphysis consisting of compact bone surrounded by a layer of trabecular bone
D. Lamellae of compact bone with collagen fibers arranged in tightly coiled helices
E. Epiphyses with numerous spicules of bone that are randomly arranged
Answer: D
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The flexible parts of your nose and ears are spongy bone.
Answer the following statement true (T) or false (F)
Which is one of the most abundant excitatory neurotransmitters in the CNS?
A. Endorphin B. Dopamine C. Gamma-aminobutyric acid (GABA) D. Glutamate E. Norepinephrine
Which process breaks food molecules into smaller molecules to release energy?
a. anabolism b. catabolism c. nutrition d. absorption
Olfactory receptors cells send their action potentials through openings in the ethmoid bone, and synapse with neurons in the
A. cribriform plate. B. thalamus. C. olfactory cortex. D. olfactory foramina. E. olfactory bulbs.