Which of the following organs or structures would be found in the left iliac region?
A) liver
B) appendix
C) intestines
D) stomach
Answer: C
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James has a hemoglobin measurement of 16 g/100 ml blood. This is ________.
A) above normal B) normal only if James is an infant C) abnormally low D) within the normal range
Which of the following is not true of the urinary bladder?
A. Rugae are folds of the mucosa that allow the urinary bladder to stretch for urine storage. B. The trigone contains openings for the ureters and the urethra. C. The detrusor muscle makes up the muscular coat of the urinary bladder. D. The bladder can store about 600 mL of urine, but the urge to void can be felt when it contains about 500 mL. E. All of these are true of the urinary bladder.
A certain drug decreases heart rate by blocking a receptor on cardiac pacemaker cells. This drug probably binds to ________ receptors
A) nicotinic cholinergic B) muscarinic cholinergic C) alpha-1 adrenergic D) alpha-2 adrenergic E) beta-1 adrenergic
The structure of a capillary wall differs from that of a vein or artery because
A. the capillary wall has only two tunics. B. capillaries have more smooth muscle. C. capillary walls have only endothelium and a basement membrane. D. capillaries can constrict or dilate. E. capillaries are impermeable to all substances.