True or False? Cytotoxic T cells can respond only to cells that display abnormal MHC Class II molecules.
Answer the following statement true (T) or false (F)
False
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Regulating hormones from the hypothalamus ________
A) enter the hepatic portal system, which feeds the pituitary B) first enter into the hypophyseal portal system C) enter venous circulation and travel to the heart, which pumps the hormone-containing blood to the pituitary D) travel by arteries to the pituitary
Answer the following statements true (T) or false (F)
1. Polycythemia can result from too little hemoglobin even if there is an adequate number of red blood cells. 2. Normally, about 55% of the blood volume is red blood cells. 3. If a test tube of blood is “spun down” in a centrifuge, the white blood cells and platelets form a layer called the buffy coat. 4. A person with polycythemia would have a red blood cell volume less than 45%. 5. A person with anemia might have a red blood cell volume as high as 65%.
Cramping is not a sign of tying up disease
Indicate whether the statement is true or false
The ________ secretes a hormone that increases the body's metabolic rate, promotes alertness, quickens reflexes, and stimulates the fetal nervous system.
A. parathyroid gland B. thyroid gland C. thymus D. pancreas E. adrenal gland