Unlike Na+, K+ is secreted by the nephron tubules
Indicate whether the statement is true or false.
TRUE
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The azygos vein is located on the left side of the vertebrae.
Answer the following statement true (T) or false (F)
The major histocompatibility complex
a. was first observed in virally infected fish. b. is a group of cells responsible for presenting antigens to B-cells to stimulate antibody production. c. is a cluster of genes which encode self-antigens. d. is the membrane glycoprotein and associated antigen presented to B-cells. e. none of these.
This is a figure of a skin wound. What does "B" represent?
A. Blood clot B. Epidermis C. Blood vessel D. Subcutaneous adipose tissue E. Dermis
Which of the following is true regarding the function of the parasympathetic nervous system?
A. Carries messages for everyday body maintenance functions B. Prepares the body for fight or flight C. Decreases blood flow to digestive organs D. Dilates blood vessels