Muscles visible at the body surface are often called
A) internus.
B) rectus.
C) profundus.
D) intrinsic.
E) superficialis.
Answer: E
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Which of these actions is accomplished by the erector spinae muscles?
A) abduct the thigh B) extend the vertebral column C) flex the vertebral column D) protract the scapula E) rotate the thigh
The cap (formed from the corpus spongiosum) over the distal end of the penis is the:
A) bulb of the penis. B) crus of the penis. C) root of the penis. D) prepuce (foreskin). E) glans.
You have performed electrophoresis on a sample of normal hemoglobin (HbA), sickle-cell hemoglobin (HbS), a mixture containing HbA + HbS, and a sample of hemoglobin from a patient. The patient sample shows 2 bands, one at the same distance as the HbA band
and one at the same distance as the HbS band. What is true about your patient? A) The patient has sickle-cell anemia. B) The patient has normal hemoglobin. C) The patient has sickle-cell trait. D) The answer cannot be determined from the data.
Which of the following statements concerning the female mammary glands is true?
A. They are modified sweat glands. B. They are the organs of milk production. C. They may contain large amounts of adipose tissue. D. They are attached to the pectoralis major muscle by Cooper ligaments. E. All of these choices are correct.