State the basic functions of the different classes of glial cells
What will be an ideal response?
Astrocytes—support neurons, form part of the blood-brain barrier, transfer nutrients to neurons, form neural scar tissue, take up and degrade neurotransmitter, take up excess potassium. Oligodendrocytes—form myelin in the CNS. Microglia—involved in phagocytosis activities in the brain, release nerve growth factor. Ependymal cells—involved in CSF production, are stem cells for neuronal and glial production.
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Which of the following is not true of red blood cells?
A. They transport oxygen through the blood, but not carbon dioxide. B. They are also called erythrocytes. C. They contain hemoglobin for gas transport. D. The biconcave disc shape makes them look hollow in their centers. E. All of these are true of red blood cells.
Cartilage cells occupy small chambers called ___________
Fill in the blank(s) with correct word
The GI organ that is the major site of nutrient absorption is the ________
A) large intestine B) esophagus C) stomach D) small intestine
The arrector pili muscle is composed of striated muscle tissue
Indicate whether the statement is true or false