Transplacental infection occurs when microbes from the mother enter fetal circulation through the umbilical artery
a. true
b. false
b. false
You might also like to view...
Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?
A. It ISN'T a good strategy-host cells could shift to a backup receptor and shut down production of the main receptor, preventing infection. B. If it's a receptor the cell MUST use, it doesn't have a backup system in place to switch to-so, even though it makes it susceptible to infection, it HAS to put that target out there. This benefits the microbe. C. Microbes need to evade detection and elimination by the immune system-if they adhere to a receptor that plays a critical function, they are less likely to trigger destructive immune responses. This would be similar to using a hostage as a shield in a police-standoff situation. D. It ISN'T a good strategy-by binding to receptors, microbes will be phagocytosed by cells and destroyed within them.
The two major subdivisions of the nervous system are the central nervous system and the limbic nervous system
Indicate whether the statement is true or false
In sham-eating experiments, food is chewed and swallowed by the subjects, but rather than passing down the esophagus into their stomachs, it goes directly:
(a) into their bloodstream (b) out of the body through a tube (c) into their intestines (d) into their colons
Which part of a synovial joint is a fluid-filled sac?
A. symphysis B. synovial membrane C. menisci D. bursa E. suture