Which statement is correct?
a. Implantation is accomplished by enzymatic activity of the trophoblastic layer of the ovum.
b. The endometrium at the site of implantation is converted into the nutrient-rich decidua.
c. Implantation occurs within 24 hours after fertilization.
d. Both a and b
e. All of the above
B
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A woman is brought to an emergency room complaining of severe pain in her left iliac region. She claims previous episodes and says that the condition is worse when she is constipated, and is relieved by defecation. A large, tender mass is palpated in the left iliac fossa and a barium study reveals a large number of diverticula in her descending and sigmoid colon. What are diverticula, and what is
believed to promote their formation? Does this woman have diverticulitis or diverticulosis? Explain. What will be an ideal response?
Which of these leg muscles does not belong grouped with the others?
A. Vastus medialis B. Vastus lateralis C. Rectus femoris D. Biceps femoris
Which type of connective tissue is found in the papillary layer of the dermis and contains all of the cell types of connective tissue proper?
A. Areolar B. Dense regular C. Adipose D. Reticular E. Dense irregular
Which of the following represents an accurate analogy of dual innervation?
A. A remote control that can increase and decrease the volume of a television B. The water tank refilling when a toilet has been flushed C. An HVAC system that warms a cool room or cools a hot room D. Both "An HVAC system that warms a cool room or cools a hot room" and "A remote control that can increase and decrease the volume of a television" are correct.