Cells that engulf bacteria or cell debris within loose connective tissue are
A) fibroblasts.
B) macrophages.
C) adipocytes.
D) mast cells.
E) melanocytes.
B
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Match the structure with the description.
a. 1 b. 2 c. 3 d. 4 e. 5 f. 6 g. 7 h. 8 i. 9 j. 10 k. 11 1. _____ Pulmonary artery 2. _____ Tricuspid valve 3. _____ Pulmonary vein 4. _____ Mitral valve 5. _____ Right ventricle 6. _____ Left ventricle 7. _____ Lungs 8. _____ Aortic semilunar valve 9. _____ Right atrium 10. _____ Pulmonary semilunar valve 11. _____ Left atrium
The anterior pituitary hormone ____________ stimulates the mammary glands to produce milk
a. prolactin b. oxytocin c. luteinizing hormone d. growth hormone e. none of these.
Which of the following structures is continuous with the inner lining of blood vessels?
a. the pectinate muscles b. the pericardial sac c. the epicardium d. the endocardium
Which structures are formed from neural crest cells?
A. Pigmented body cells B. Facial bones C. Sensory, autonomic, and enteric neurons D. Adrenal medulla E. All of the choices are correct.