The myelin sheaths of PNS neurons are produced by ________.

A. oligodendrocytes
B. Schwann cells
C. ependymal cells
D. leukocytes


Answer: B

Anatomy & Physiology

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Which medical imaging technique relies on the absorption of high-energy radiation and reveals dense tissues such as bone and teeth?

A. Positron emission tomography (PET) scan B. Sonography C. Computed tomography (CT) scan D. Magnetic resonance imaging (MRI) E. Radiography

Anatomy & Physiology

Conduction of action potentials along an axon is termed saltatory conduction because the action potential

A) Is dependent on the ions Na+ and K+ portions of salts. B) Appears to leap or jump from node to node. C) Is named after Johan Saltare, who first discovered it. D) Moves very rapidly down the axon.

Anatomy & Physiology

Which of the following muscles is not a smaller muscle part of the of the levator ani muscle group that forms the pelvic floor?

A. Ischiococcygeus B. Anococcygeal C. Pubococcygeus D. Iliococcygeus

Anatomy & Physiology

Metabolism is the sum of all of the chemical reactions within cells that release energy.

Answer the following statement true (T) or false (F)

Anatomy & Physiology