The ________ cells support, nourish, and protect developing sperm cells.
Fill in the blank(s) with the appropriate word(s).
sustentacular
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This blood test is for prostate cancer
A) PSA B) SAP C) ASP D) PAP
Superficial muscles that position or stabilize an organ are called
A) internus. B) extrinsic. C) profundus. D) intrinsic. E) externus.
A 65-year-old female with a smoking history of 2 packs/day for 30 years has been diagnosed with chronic obstructive lung disease. She is obviously using her accessory respiratory muscles for breathing, which is caused by:
A. decreased work of breathing due to airflow obstruction B. increased work of breathing due to a dysfunction in the neuromuscular junction C. increased work of breathing due to airflow obstruction requiring active expiratory muscle contraction D. abnormal breathing pattern E. increased work of breathing due to airflow obstruction requiring active inspiratory muscle contraction
Differentiate graded potentials and action potentials. Select all that apply.
-summation of graded potentials can not occur but summation of action potentials are possible. -graded potentials are conducted in a decremental fashion and action potentials are conducted with a constant magnitude -the magnitude of graded potentials is variable and action potentials are all or none.