Chemotaxis
A. refers to dilation of blood vessels by chemicals released by damaged tissue cells.
B. refers to the chemical attraction of neutrophils to a site of inflammation.
C. refers to the engulfing of microbes and foreign molecules by macrophages.
D. is important only for adaptive immune responses.
E. is important only for innate immune responses.
Answer: B
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A patient was admitted to the hospital with chest pains. On admission, his pulse was 110 and blood pressure was 96/64. According to his history, his normal pulse rate is usually between 80 and 88 and his blood pressure runs from 120/70 to 130/80
Explain why these changes in BP and HR occur. What will be an ideal response
The amplitude of sounds waves determines the ________
A) None of the listed responses is correct. B) pitch C) location of sound D) loudness
A decrease in muscle bulk due to a lack of exercise is called ____
a. dystrophy b. atrophy c. hypertrophy d. anatrophy
The secondary oocyte completes the second meiotic division when
A. the mature follicle ruptures. B. it is penetrated by a sperm cell. C. it receives both estrogen and progesterone. D. ovulation occurs. E. it is implanted in the uterus.