Which of the following hormones helps to maintain blood glucose levels by stimulating glycogenolysis (breakdown of glycogen into glucose)?
a. glucagon
b. thyroid hormone
c. cortisol
d. all of the above are correct
Answer: d. all of the above are correct
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A male patient complains of physical weakness and fatigue. A blood test shows his hematocrit to be 30%. Which of the following diagnoses is the least likely to explain his symptoms?
A. Dietary iron deficiency B. Dietary vitamin B12 deficiency C. Internal bleeding D. Kidney disease E. Lung disease
Which of the following is a plane (gliding) joint?
A. Humeroscapular joint B. Atlanto-occipital joint C. Intercarpal joint D. Talocrural joint E. Sternoclavicular joint
Which one of the following best describes the order of a somatic reflex?
A. Somatic receptor ? interneuron ? afferent nerve fiber ? efferent nerve fiber ? skeletal muscle B. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? skeletal muscle C. Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? smooth muscle D. Somatic receptor ? efferent nerve fiber ? afferent nerve fiber ? interneuron ? skeletal muscle E. Somatic receptor ? efferent nerve fiber ? interneuron ? afferent nerve fiber ? skeletal muscle
The reason that certain odors can initiate behavioral and emotional reactions is because
A. there are widespread olfactory associations within the hypothalamus and limbic system. B. the sense of olfaction occurs immediately at the olfactory epithelium. C. olfactory sensations are interpreted at the prefrontal cortex. D. the olfactory pathway is connected directly to the occipital lobe. E. the olfactory pathway is connected directly to the medulla oblongata.