Which of the following prenatal tests is non-invasive?
A. Amniocentesis
B. Ultrasound
C. Chorionic villi sampling
D. Inserting a shunt into a fetus with water on the brain
Answer: B
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Control of secretions of the digestive tract is via the
A) submucosal plexus. B) sympathetic nervous system. C) Control is different in various areas of the tract. D) myenteric plexus. E) hypoglossal nerve
This cross section of skin shows general cutaneous receptors. What kind of receptor does number 5 indicate?
A. Free nerve ending B. Krause bulb C. Lamellated corpuscle D. Tactile disc E. Root hair plexus
The articulation of the superior and inferior articulating processes forms the
A. zygapophyseal joint. B. apophyseal joint. C. a and b D. Neither a nor b
Your muscle cells are able to express a different complement of proteins from your brain cells because
a. they contain different genes. b. muscles and brains are the vestiges of different symbiotic organisms present in our ancestors. c. you inherit the genes for your muscles from your father and the genes for your brain from your mother. d. the expression of muscle-specific genes is regulated by transcription factors not present in brain cells and vice versa.