Answer the following statements true (T) or false (F)
1. Glucocorticoids are steroid hormones that usually enhance the immune responses when an individual is suffering from severe stress.
2. Direct gene activation involves a second-messenger system.
3. All peptide hormone synthesis requires gene activation that produces mRNA.
4. All adenohypophyseal hormones except GH affect their target cells via a cyclic AMP second messenger.
5. The primary source of RBCs in the adult human being is the bone marrow in the shafts of the long bones.
1. FALSE
2. FALSE
3. FALSE
4. TRUE
5. FALSE
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The process of producing the formed elements of blood is called
A. agglutination. B. hemopoiesis. C. erythroblastosis. D. leukopenia. E. leukocytosis.
Patients between the ages of 76 and 84 are classified as ________
A) Older old B) Elite old C) Younger old D) Beginning old
Individuals who are described as heterozygous have different
A. parents who displayed two different phenotypes. B. alleles for a particular trait. C. genotypes than the predominant genotype. D. genes for one trait on several chromosomes.
A 58-year-old woman with a history of hypercholesterolemia came to the ER with severe abdominal pain, nausea, and vomiting. She is diagnosed with advanced atherosclerosis after radiologic imaging reveals atherosclerotic plaque narrowing the blood vessel supplying the embryonic foregut and its derivatives. What blood vessel is most likely affected?
(A) Celiac artery (B) Superior mesenteric artery (C) Inferior mesenteric artery (D) Portal vein (E) Umbilical vein