The flattening of the action potentials of myocardial contractile cells, called the plateau phase, is due to a combination of ________ K+ permeability and ________ Ca2+ permeability.
A) decreasing, decreasing
B) increasing, increasing
C) decreasing, increasing
D) increasing, decreasing
C) decreasing, increasing
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Which vein drains blood from the left side of the thorax and esophagus into the left brachiocephalic vein?
A. Accessory hemiazygos vein B. Hemiazygos vein C. Internal thoracic vein D. Left azygos vein
The ________ vertebrae have the largest vertebral foramina, while the ________ vertebrae have the largest size.
A. thoracic; cervical B. cervical; lumbar C. cervical; thoracic D. thoracic; lumbar E. lumbar; cervical
The spinal cord and spinal nerves are exclusively responsible for some reflexes.
Answer the following statement true (T) or false (F)
The pancreas has both an endocrine and an exocrine function
Indicate whether the statement is true or false