Any abnormal cardiac rhythm is called a(n) ________.
A. nodal rhythm
B. arrhythmia
C. heart block
D. sinus rhythm
E. ectopic focus
Answer: B
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Which of the following anatomical terms refers to the thumb?
a) pollex b) tarsal c) hallux d) volar e) carpal
Answer the following statements true (T) or false (F)
1) The scalene muscles elevate the ribs and/or flex neck. 2) The superior oblique elevates the mandible. 3) The dioptic muscle rolls eye down and laterally. 4) The digastric muscle depresses the mandible and/or elevates the larynx. 5) The internal intercostal aids in respiration. 6) The rectus abdominis is a muscle that aids in flexing the vertebral column.
What area of the brain is most involved in directly regulating the internal environment (homeostasis)?
a. pituitary gland b. thalamus c. hypothalamus d. hyperthalamus e. pineal gland
What does Boyle's law state about pressure and volume at a constant temperature and a constant pressure?
A) Pressure and volume will both decrease as temperature and pressure decrease. B) Pressure and volume will both increase together or both decrease together. C) Pressure and volume will both increase as temperature and pressure increase. D) Pressure increases when volume decreases.