Which of the following is NOT a neuroglia of the CNS?
A. ependymal cells
B. satellite cells
C. oligodendrocytes
D. astrocytes
B
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Describe the nucleus pulposus and annulus fibrosus of an intervertebral disc
A) The nucleus pulposus is a soft, elastic, gelatinous core and the annulus fibrosus is a tough outer ring of fibrocartilage. B) The nucleus pulposus is a soft, elastic, outer ring and the annulus fibrosus is a tough inner core of fibrocartilage. C) The nucleus pulposus is a tough outer ring of fibrocartilage and the annulus fibrosus is a soft, elastic, gelatinous core. D) The nucleus pulposus is a tough inner core of fibrocartilage and the annulus fibrosus is a soft, elastic, outer ring. E) The nucleus pulposus connects the spinous processes of two adjacent vertebrae and the annulus fibrosus is the fibrocartilage disc.
You are the captain of a miniature submarine that is being sent on a voyage through the body. Your assignment is to plot the course taken by molecules of oxygen from the atmosphere to the heart and the reverse course taken by molecules of carbon dioxide from the heart to the atmosphere. Diagram and explain how you would organize the course. (I do not understand this question at all so even a guess at this would help me out lol)
What will be an ideal response?
The portion of the GI tract seen curving around the head of the pancreas on axial CT images is the jejunum.
Answer the following statement true (T) or false (F)
A neuromodulator
A. acts as a neurotransmitter. B. inactivates neurotransmitters. C. is a receptor site for a neurotransmitter. D. has no influence on the amount of neurotransmitter released. E. is a substance released from neurons that influences the sensitivity of neurons to neurotransmitters.