Which of the following best describes the use of skeletal muscle tone in the body?
A) It keeps the heart beating.
B) It keeps food moving through the intestines.
C) It prevents indigestion.
D) It keeps our backs straight and our heads up.
Answer: D) It keeps our backs straight and our heads up.
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Which cavity contains the bladder, some reproductive organs, and the rectum?
Fill in the blank(s) with the appropriate word(s).
What does structure "A" represent on the bone diagram?
A. Spongy bone B. Epiphysis C. Articular cartilage D. Epiphyseal lines E. Diaphysis
Use the following to answer questions 68-69:A scientist studies the pattern of diseases and finds that a disease has spread from one country to the next on a large scale. Seeing that individuals with the disease experience chest pain, coughing blood,fever, chills, and weight loss, the scientist determines it is tuberculosis. Additionally, he notices that there are a large number of individuals who had silicosis prior to contracting tuberculosis. As the scientist discusses this situation with other doctors, they decide all healthcare workers must wear masks while near and treating these patients. 68. Why must healthcare workers wear masks when caring for these patients?
a. It is an airborne illness. b. These patients emit a foul order. c. They are susceptible to other germs the healthcare workers may have. d. The air quality in the country may be very poor.
Which tissue consists of short, branched cells with intercalated discs?
A. Smooth muscle B. Cardiac muscle C. Skeletal muscle D. Dense regular connective tissue E. Visceral muscle