Cells that form a myelin sheath in the CNS are called ________.
Fill in the blank(s) with the appropriate word(s).
oligodendrocytes
Anatomy & Physiology
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Hemocytoblasts are basically the undifferentiated stem cells from which all other formed elements of blood will be synthesized.
a. true b. false
Anatomy & Physiology
Which of the following is descriptive of skeletal muscle fibers?
A) Skeletal muscle fibers lack a sarcolemma and myofibrils. B) Skeletal muscle fibers are smaller than most cells. C) Skeletal muscle fibers are uninucleate. D) Skeletal muscle fibers are striated.
Anatomy & Physiology
The ________ secretes growth hormone, which is also known as somatotropin.
A. anterior pituitary B. thyroid C. hypothalamus D. thymus E. posterior pituitary
Anatomy & Physiology
The normal pacemaker of the heart is the
A. atrioventricular node. B. Purkinje fibers. C. sinoatrial node. D. AV bundle.
Anatomy & Physiology