The sac-like structure that joins the ileum at the ileocecal valve is the
A) appendix.
B) sigmoid colon.
C) rectum.
D) haustra.
E) cecum.
Answer: E
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A patient presents in the emergency department after he's been in a car accident. Because the patient is complaining about severe headaches, you suspect localized bleeding in his cranium. Moreover, you run tests and notice major swelling in this area. Which course of action should be a priority?
A. Inducing local vasodilation B. Increasing pressure in the area to decrease bleeding C. Decreasing inflammation to prevent tissue damage D. Increasing the temperature in the cranial area to induce a fever
An animal that lacks resistance to a disease is said to be:
A) sick B) morbid C) susceptible D) a carrier
Phospholipid molecules will form aggregates called ________ when placed in water.
A. micelles B. prostaglandins C. ketone bodies D. surfactants
Smooth muscle cells lack which protein(s)?
A) troponin only B) actin only C) myosin only D) troponin and tropomyosin E) tropomyosin only