A brainstem nucleus that is strongly implicated in the mechanism for selective attention is the locus coeruleus
Indicate whether the statement is true or false.
TRUE
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You have a new patient who describes having a lot of difficulty in being able to remember meeting new people. An MRI reveals damage to which structure?
A. Hippocampus B. Thalamus C. Broca's area D. Corpus callosum E. Hypothalamus
Changes in the immune system that accompany aging include all of the following except
A) T cells becoming less responsive to antigens. B) fewer cytotoxic T cells responding to infections. C) decreased numbers of T helper cells. D) more efficient secondary responses. E) B cells are less responsive.
The most ancient deuterostomes are
A) Annelids. B) Echinoderms. C) Mollusks. D) Arthropods.
Which of the following best describes a genetic male (XY) who lacks functional androgen receptors (androgen insensitivity syndrome)?
A. He will have normal male external genitalia. B. He will have ovaries and female-appearing external genitalia but male secondary sex characteristics. C. He will have female-appearing external genitalia and ovaries, but internal structures derived from the Wolffian ducts. D. He will have male external genitalia but will have female-appearing internal structures derived from the Müllerian ducts. E. He will have undescended testes, but female external genitalia and secondary sex characteristics.