The body's longest cells are
A) muscle cells.
B) connective tissue.
C) epithelia.
D) neurons.
E) neuroglia.
D
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The fetally derived portion of the placenta secretes hormones essential for maintaining pregnancy, primarily human chorionic gonadotropin, estrogen, and progesterone
a. True b. False Indicate whether the statement is true or false
In order to increase contractility, NE released form sympathetic fibers would act at synapses with _______
a. SA node cells b. AV node cells c. ventricular contractile cells d. atrial contractile cell
Why is it possible for a person with type A negative blood to have a negative reaction when receiving a transfusion of whole type O negative blood?
A. Some type O cells possess B agglutinogens on their surface. B. The Rh factor would cross-react. C. Blood transfusions can only occur within the same blood group. D. The type O blood may have high enough levels of anti-A antibodies that could cross-react with the recipient's cells.
Damage to the insula is most likely to affect which of the following senses?
A) olfaction B) gustation C) vision D) hearing E) equilibrium