Sympathetic stimulation increases the heart rate
Indicate whether the statement is true or false
T
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Which tissue type is formed from mesoderm?
a. epidermis (outer layer) of skin b. nervous tissue c. smooth muscle tissue d. epithelial lining of the urinary bladder
Which of the following statements concerning potassium ions is false?
A. An increase in the extracellular potassium ion concentration leads to depolarization. B. Potassium ions are secreted into the nephron by the distal convoluted tubule. C. When aldosterone levels are high, potassium secretion is low. D. Aldosterone secretion is stimulated by high blood levels of potassium ions. E. None of these choices is false.
Which of the following best describes the composition of the dermis?
A. Collagen and fibroblasts B. Collagen and living keratinocytes C. Collagen and dead keratinocytes D. Elastic fibers and dendritic cells E. Elastic fibers and melanocytes
In order to process digested nutrients and detoxify chemical agents such as drugs and alcohol, the ________ contains abundant amounts of smooth ER.
A. small intestine B. kidney C. liver D. pancreas E. stomach