Todd was startled when the door slammed shut. What part of the brainstem is responsible for this reflex?
A) medulla B) midbrain C) pons D) thalamus
Answer: B
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Cross bridges have actin binding sites that are normally covered by troponin and tropomyosin except during excitation-contraction coupling
Indicate whether the statement is true or false
Stratified epithelium consists of
A. multiple layers of cells. B. a single layer of cells. C. a single layer of cells that changes shape when the tissue is stretched. D. a multiple layer of cells that appears to change shape when the tissue is stretched. E. None of these choices are correct.
Which of the anatomical regions houses the stomach?
A. Abdominal B. Anterior C. Appendicular D. Axillary
A lack of exercise could
A) cause bones to become thicker. B) cause bones to store more calcium. C) result in porous and weak bones. D) cause bones to become longer. E) cause bones to lose their medullary cavity.