In the human body, __________ function as fulcrums.
A) bones
B) joints
C) muscles
D) internal organs
E) tendons
Ans: B) joints
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Which of the following is not true regarding the vertebral canal?
A) It encloses the spinal cord. B) It is formed by vertebral foramina of successive vertebrae. C) The anterior border is the vertebral body. D) It is found only in cervical and thoracic vertebrae. E) The posterior border is the vertebral arch.
Sensory receptors that adapt to stimuli after a certain period of time are:
A) nociceptors. B) thermoreceptors. C) rapidly adapting receptors. D) slowly adapting receptors.
Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and
cellular debris are A) lymphocytes. B) cytokines. C) macrophages. D) mast cells.
The function of the ossicles is to
A. initiate action potentials that propagate to the inner ear. B. detect acceleration of the head. C. amplify sound waves and transmit them to the inner ear. D. determine static head position. E. support the tympanic membrane and protect hair cells of the inner ear.