Which term means the failure of the testes to descend into the scrotal sac before birth?
A) cryptorchidism
B) hypospadias
C) anorchism
D) phimosis
A
Explanation: Correct. Cryptorchidism means hidden testes.
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Which of the following best describes premenstrual dysphoric disorder (PMDD)?
A. It occurs after age 40. B. It occurs in emotionally unstable women. C. It is experienced by more than half of all women. D. It interferes with normal daily activities.
Sutures are
A) instruments used for suction and to drain fluids. B) stitches made to close a wound or hold tissues together. C) instruments used to pull back skin or tissues. D) materials used to sterilize a wound.
The area where two or more bones meet is called a joint, or an ____________________
Fill in the blank(s) with correct word
Which of the following statements is/are true regarding T cytotoxic cell antigen elimination?
Released interferons by cancer cells or infected cells increases production of MHC II, increasing the likelihood that cytotoxic T cells will "seek and destroy" these cells. Once the threat has been detected by the T cell receptor, the cytotoxic T cell releases perforins that form pores in the target cell and granzymes, which enter through pores to trigger apoptosis. Interferons released by infected or cancer cells attract and activate cytotoxic T cells, while cytokines released by the cytotoxic T cells attract natural killer cells and macrophages. Following apoptosis by cytotoxic T cells, macrophages and natural killer cells clear the dead cells.