Carl is suffering from hypothyroidism. What is hypothyroidism? How could his physician determine whether the malfunction is in the hypothalamus and pituitary or at the level of the gland itself?
What will be an ideal response?
Hypothyroidism results when the thyroid gland produces lower than normal amounts of thyroid hormones. The physician could order blood tests to determine the levels of T3, T4, and TSH in the blood. If the condition is due to disease of the thyroid gland, you would expect to see elevated levels of TSH because of a lack of feedback inhibition by thyroid hormones. If, on the other hand, the problem is due to problems at the level of the hypothalamus or pituitary, you would expect to see decreased levels of TSH.
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Jose is brought to the emergency room complaining of a burning sensation in his chest, increased salivation, and difficulty in swallowing. He is having difficulty breathing and feels the presence of a "lump in his throat." The diagnosis is gastroesophageal reflux disease. Explain.
What will be an ideal response?
The work of breathing normally requires about 3% of total energy expenditure; this increases under all of the following situations except when
a. elastic recoil decreases b. resistance increases c. the partial pressure of oxygen increases in the air d. ventilation increases e. compliance decreases
Growth hormone exerts metabolic effects unrelated to growth
Indicate whether the statement is true or false
The average adult has ____________________ pints of blood in the body.?
Fill in the blank(s) with correct word