What is a hormone?
A. a chemical released from a nerve cell that affects nearby cells across a synapse
B. a chemical released from an endocrine gland that affects target cells without entering the bloodstream
C. a chemical found in the blood that catalyzes the destruction of ingested toxins and foreign substances
D. a chemical excreted from sweat gland that signals other individuals about the physiological status of the body
E. a chemical regulator secreted from an endocrine gland that travels through the bloodstream to affect target cells
E
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Aqueous humor is drained by the ________
A) iris B) scleral venous sinus C) sclera D) ciliary body
The muscle known as the diaphragm separates the ________ from the ________
A) pleural cavity; mediastinum B) thoracic cavity; abdominopelvic cavity C) pericardial cavity; pleural cavity D) abdominal cavity; pelvic cavity E) pericardial sac; pericardial cavity
Urine has a specific gravity closest to 1.001 when excessive fluids are consumed
Indicate whether the statement is true or false
Given that cardiac output equals ____________, there are only two ways to change it: change the heart rate or change the stroke volume.
a. HR + SV b. HR/SV c. HR X SV d. None of the choices is correct.