What type of messenger does the endocrine system use?
A. Neurotransmitter
B. Hormones
C. Electrical impulses
D. All of these answers are correct.
Answer: B
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Cerebrospinal fluid is found between the dura mater and arachnoid.
Answer the following statement true (T) or false (F)
When a neuron is at rest, there is a charge separation (voltage) across the plasma membrane called ________
A) the resting membrane potential B) repolarization C) depolarization D) the battery
All triplets required to code for synthesis of a protein are a
A. gene. B. codon. C. proenzyme. D. pre-mRNA. E. ribosomal RNA (rRNA).
Which of the following statements about bone growth is TRUE?
A. Most growth in long bones results from interstitial growth. B. In the epiphyseal plate, osteoblasts degenerate to form chondrocytes. C. Endochondral growth in long bones occurs at the epiphyseal plate. D. Bones can not grow by appositional growth. E. Appositional bone growth results in increased bone length.