The largest nerve in the body, the sciatic nerve, belongs to the ________ nerve plexus
A) lumbar
B) sacral
C) brachial
D) cervical
B
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Analysis of a glandular secretion indicates that it contains some DNA, RNA, and membrane components such as phospholipids. What kind of secretion is this and why?
Which of the following is occurring during ventricular diastole?
A) The ventricles are passively filling. B) The ventricles are passively filling and atria are contracting. C) The AV valves are closed. D) The SL valves are open. E) Ventricular ejection.
The ________ gland may influence our day/night cycles and even regulate the onset of sexual maturity.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements concerning development of the integumentary system is true?
A. Sensory receptors in the skin are derived from the epidermis. B. Collagen fibers do not appear until after birth. C. The epidermis is derived from mesoderm. D. The melanocytes are derived from ectoderm. E. Nails, hair, and glands develop from the dermis.