Physiology ________.
A. ultimately strives to understand the structures of individual cells
B. includes the fields of chemistry and psychology
C. ignores the scientific method
D. emphasizes cause-and-effect mechanisms
Answer: D
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The portion of the sternum first seen on CT axial images arranged in a descending order is the ____________________.
Fill in the blank(s) with the appropriate word(s).
At what point in the large intestine does the epidermis change from stratified squamous non-keratinized tissue like the oral cavity to stratified squamous keratinized tissue like the skin?
A) descending colon B) internal anal sphincter C) anus D) rectum E) sigmoid colon
A 12-year-old female of Hispanic descent enters the emergency department with severe pain on the left side of her abdomen. The family has recently immigrated to the United States
First attempts at pain relief with nonnarcotic drugs were unsuccessful. Opioids are needed to suppress the pain. Her laboratory results show that she is anemic and her parents reveal a history of chronic infections and a stroke. Genetic testing reveals that her hemoglobin gene has a single amino acid substitution of valine for glutamic acid. Her primary diagnosis is: A. blunt traumatic injury to the spleen B. aneurysm C. sickle cell disease D. cystic fibrosis
An EPSP:
A. is a direct result of the opening of ligand-gated channels permeable to both Na+ and K+ ions. B. is a direct result of the opening of voltage-gated channels permeable to both Na+ and K+ ions. C. stabilizes the membrane to remain at its resting potential. D. opens voltage-gated Ca2+ channels in the presynaptic membrane. E. occurs when voltage-gated Cl- channels open in a postsynaptic cell membrane.