A nurse palpated enlarged lymph nodes. Describe signs and symptoms that help to distinguish cancerous lymph nodes from infected lymph nodes
What will be an ideal response
Tender nodes are usually due to inflammation, whereas hard, fixed, nontender nodes are suggestive of malignancy.
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The enzyme catalase neutralizes hydrogen peroxide produced in hair follicles.
Answer the following statement true (T) or false (F)
Which of the following statements is true?
A. Damaged olfactory neurons are replaced. B. Olfactory epithelial receptors are highly specific. C. Olfaction first goes to the thalamus and is then relayed to the cerebral cortex. D. Continued stimulation of olfactory neurons produces the same level of response. E. Replacement of neurons is a common phenomenon in the body.
Any abnormal cardiac rhythm is called a(n) ________
A) nodal rhythm B) sinus rhythm C) arrhythmia D) ectopic focus E) heart block
Short reflexes involve sensory neurons and interneurons whose cell bodies are located within
A) autonomic ganglia. B) the organ. C) the brain. D) the spinal cord. E) None of the answers are correct.