The nervous system employs exclusively electrical means to send messages, whereas the endocrine system communicates by means of chemical messengers
Indicate whether the statement is true or false
FALSE
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The two layers of a serous membrane are
A) visceral and parietal. B) internal and external. C) pericardial and parietal. D) double sheets of peritoneum. E) pleural and parietal.
Which of the following pancreatic enzymes acts on peptide bonds?
a) Chymotrypsin b) Amylase c) Pepsin d) Phosphatase e) Nucleosidase
How does the skin work closely with the skeletal system?
A. It protects against infection. B. It produces sweat. C. It produces vitamin D. D. It stores fat.
During the fight-or-flight reaction, ________ is released from the adrenal medulla and binds to ________ receptors, found on the vascular smooth muscle of heart, liver, and skeletal muscle arterioles and results in (increased/decreased) blood flow to these organs; the same hormone binds to ________ receptors on other tissues, causing (increased/decreased) blood flow to these organs.
Fill in the blank(s) with the appropriate word(s).