To which of the following would the immune system NOT respond?
a. decreased levels of blood flow at the kidney
b. influenza virus
c. cancerous cell in the lung
d. physical injury (penetration of a foreign object) to the skin
e. a parasitic worm
Answer: a. decreased levels of blood flow at the kidney
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What structure secretes the enzyme that breaks down starch to smaller carbohydrates?
A. Pancreatic exocrine cells B. The liver C. Pancreatic duct cells D. The esophagus E. The large intestine
How can a cyclist maintain balance when rounding a sharp curve?
A. slow down B. lean to the inside of the curve C. lean to the outside of the curve D. both A and B E. none of the above will affect balance
The cytoplasm within the muscle fiber is known as the
A) myoglobin component. B) sarcolemma. C) sarcoplasm. D) sarcoplasmic reticulum.
Which is false regarding the somatic nervous system (SNS)?
A. The SNS is part of both the CNS and the PNS. B. The SNS innervates skeletal muscle fibers. C. The SNS is under voluntary control. D. The SNS uses motor and sensory neurons. E. The SNS is activated by visceral sensory neurons.