This figure shows a frontal section of the cerebrum. What structure does number 1 indicate?
A. Corpus callosum
B. Fourth ventricle
C. Brainstem
D. Lateral ventricle
E. Central canal
Answer: A
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Thymic hormones
A. stimulate T-lymphocyte maturation and differentiation. B. are produced by the cortical lymphocytes. C. stimulate the activity of nurse cells. D. are secreted in response to stimulation by activating hormones from the pituitary gland. E. are stored in thymic corpuscles prior to release.
Which of the following statements is true of nerves?
A) They are composed of groups of neurons. B) Neurons are composed of groups of nerves. C) They act as pipes in the body, transporting fluid. D) Signals generated in nerves can travel only short distances.
What type of cell would have an abundance of peroxisomes?
A. mucus cell (secretes mucus) B. cardiac muscle cells (require large amounts of ATP) C. white blood cell, a phagocyte D. fibroblast (makes protein fibers) E. liver cells that detoxify hydrogen peroxide
What are the functions of testosterone? select all that apply.
a) to prepare the mammary glands for lactation b) to develop the male physique c) to fuel the sex drive d) to develop the male reproductive system e) to produce white blood cells