Cells of the central nervous system that line the ventricles are:
a. astrocytes
b. ependymal cells
c. oligodendrocytes
d. microglia cells
Answer: b. ependymal cells
Anatomy & Physiology
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A nerve impulse initiated at a muscle spindle has to travel through which of the following structures to get into the spinal column?
a) Anterior root of spinal nerve b) Posterior root of spinal nerve c) Tectospinal tract d) Central canal e) Lateral reticulospinal tract
Anatomy & Physiology
What does structure "A" represent?
A. Intervertebral disk B. Axis C. Thoracic region or curve D. Atlas E. Body of vertebra
Anatomy & Physiology
From which primary germ layer is the heart derived?
A. Mesoderm B. Ectoderm C. Endoderm
Anatomy & Physiology
What vitamin deficiency causes rickets in children?
A) vitamin A B) vitamin K C) vitamin D D) vitamin C
Anatomy & Physiology