The type of neuronal circuit in which several nerve impulses come together at a single postsynaptic neuron is a ________ circuit.
A. diverging
B. reverberating
C. parallel-after-discharge
D. converging
E. None of the choices is correct.
Answer: D
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Some of the precursors for secretion of hormones by the placenta come from the fetal adrenal cortex
Indicate whether the statement is true or false
Jane has Type A blood; therefore, she
A) has antibodies to B agglutinogens. B) can give blood to other people with Type A blood only. C) can receive blood from other people with Type A blood only. D) makes anti-A without ever having been exposed to Type A blood. E) has B antigen on her RBCs.
Which statement about the effect of age on the lymphatic-immune system is not true?
A. The thymus gland enlarges. B. The level of thymic hormones decreases. C. There are fewer antigen-presenting cells. D. There are fewer helper T cells. E. Red bone marrow mass decreases.
The foramen of Monro connects the lateral ventricles with the third ventricle.
Answer the following statement true (T) or false (F)