What is the correct order in which structures are formed during neurulation?
A. Neural groove, neural plate, neural fold, neural tube
B. Neural plate, neural tube, neural fold, neural groove
C. Neural fold, neural groove, neural plate, neural tube
D. Neural plate, neural groove, neural fold, neural tube
E. Neural fold, neural plate, neural groove, neural tube
Answer: D
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A) Schwann cells B) Wallerian cells C) Golgi organs D) dendrites
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Indicate whether the statement is true or false
Which of the following is NOT true?
a. Muscle tension is produced internally within the sarcomeres. b. Muscle tension is transmitted to the skeleton by tightening of the series-elastic component within the sarcomere. c. It is possible for a skeletal muscle to produce movement without the muscle being attached to bone at both ends. d. With respect to skeletal muscle, the load and velocity for shortening are inversely related for concentric contractions. e. Actually, all of these are true statements.
Which of the following is a primary germ layer in the very early embryo?
a. Ectoderm b. Mesoderm c. Endoderm d. Epidermis