Which of the following occurs when the permeability of blood vessels increases during inflammation?
A. No change in osmotic balance between blood and tissues
B. Increased blood flow to the area
C. Redness and heat at the injury site
D. Removal of foreign material from the blood
E. Migration of white blood cells to the site of injury
Answer: E
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During a run, your gastrocnemius (calf) muscle has a temperature of 38.5° C, while your biceps brachii (upper arm) muscle has a temperature of 37.5° C. Which of the following is TRUE of the red blood cells as they pass by these muscles?
A. The hemoglobin molecules will have the same affinity for oxygen at both locations. B. The hemoglobin molecules may denature as they pass by the gastrocnemius. C. The hemoglobin molecules will have a higher affinity for oxygen as they pass by the gastrocnemius compared to the biceps brachii. D. The hemoglobin molecules will have a higher affinity for oxygen as they pass by the biceps brachii compared to the gastrocnemius.
If the orientation of your ears were changed so that your right ear still faced forward but your left ear faced backward, how would your ability to locate the direction of an auditory stimulus change?
A) Improved ability to distinguish left from right B) Improved ability to distinguish above from below C) Improved ability to distinguish front from back D) There would be no improved ability at all.
The musculocutaneous nerve can be found in the biceps brachii muscle. What types of nerve fibers would be in this nerve?
a. somatic motor b. somatosensory c. propriosensory d. all of the above
Henry has a thrombus just beyond where the vertebral arteries join on the base of the pons. Which vessel is affected?
A. Basilar artery B. Dural sinuses C. Cranial artery D. None of the choices are correct.