The outermost layer of a blood vessel, which is very thick, composed chiefly of collagen fibers, with scattered bands of elastic fibers is the
A) external elastic membrane.
B) intima.
C) internal elastic membrane.
D) adventitia.
E) media.
D) adventitia.
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This substance gives bile its major pigmentation
a) ketone bodies b) erythrocytes c) casts d) bilirubin e) glucose
Hemocytoblasts are basically the undifferentiated stem cells from which all other formed elements of blood will be synthesized.
a. true b. false
A patient suffering from hypothyroidism has developed a goiter. This occurred because ________
A) low levels of thyroid hormone stimulate the thyroid gland to increase in size B) the mental sluggishness associated with hypothyroidism stimulates the thyroid gland to increase in size C) the low activity level associated with hypothyroidism stimulates the thyroid land to increase in size D) low levels of thyroid hormone removed inhibition from the anterior pituitary and hypothalamus, more TSH was produced and it stimulated the thyroid gland to increase in size
Identify the major branches of the inferior vena cava
A) lumbar, gonadal, hepatic, renal, adrenal, and phrenic veins B) bronchial, esophageal, azygos, hemi-azygos, intercostal, and mediastinal veins C) superior mesenteric, inferior mesenteric and celiac trunks D) left gastric, splenic, and common hepatic veins E) intercostal, esophageal, mesenteric, lumbar, and phrenic veins