How does the integumentary system protect the body?
What will be an ideal response?
The integumentary system provides a physical barrier that is the first line of defense in preventing pathogens and toxins from entering body tissues. Skin secretions flush the surface, hair protects against physical abrasion, and the multiple layers of the skin's epithelium create an interlocking barrier.
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What are the muscles that are found at openings of the body collectively called?
A) convergent muscles B) circular muscles C) parallel muscles D) divergent muscles
Which of the following is a normal constituent of urine?
A) Creatinine B) Water C) All of the above D) Urea
Skeletal muscles that are not used will hypertrophy, and those that are used excessively will atrophy.?
Indicate whether the statement is true or false
Arrange the following events in correct sequence: (1) inflation and rigidity of erectile tissue (2) arteries supplying blood to erectile tissue dilate (3) blood fills erectile tissue sinusoids and compresses veins
A. 1, 2, 3 B. 2, 3, 1 C. 3, 2, 1 D. 2, 1, 3 E. 1, 3, 2