1. p356

2. Figure 11.1 How STIs Spread
Most STIs are spread by viruses or bacteria carried in certain body fluids.
Figure 11-1 p358

3. Table 11-1a p359

4. Table 11-1b p359

5. Figure 11.2 Continuum of Risk for Sexual Relationships
and Behaviors
STI risks increase as relationships become less familiar and exclusive and
as sexual activities become unprotected and receptive.
Figure 11-2 p361

6. Abstain, Be faithful, or
use Condoms. Following
the ABCs of safer
sex doesn’t mean you
can’t have an intimate,
loving relationship.
p362

7. Human papillomavirus,
which causes genital
warts, is the most common
viral STI.
p365

8. Human papillomavirus,
which causes genital
warts, is the most common
viral STI.
p365

9. (a) Herpes simplex virus
(HSV-1) as a mouth sore;
(b) Herpes simplex virus
(HSV-2) as a genital sore.
p367

10. (a) Herpes simplex virus
(HSV-1) as a mouth sore;
(b) Herpes simplex virus
(HSV-2) as a genital sore.
p367

11. A baby exposed to chlamydial
infection in the
birth canal during delivery
may develop an eye infection.
Symptoms include
a bloody discharge and
swollen eyelids.
p368

12. A cloudy discharge
is symptomatic of
gonorrhea.
p370

13. A pubic louse,
or “crab.”
p372

14. Electron micrograph of
a white blood cell being
attacked by HIV (light blue
particles), the virus that
causes AIDS.
p376