Which statement regarding the brain is true?
A) Ventricles in the brain are filled with interstitial fluid.
B) The blood-brain barrier helps to maintain a stable chemical environment for the brain.
C) Layers of connective tissue, called epithelium, surround and protect the brain and spinal cord.
D) White matter is composed of mainly dendrites.
Answer: B
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Fill in the blank(s) with the appropriate word(s).
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Fill in the blank(s) with correct word
The type of muscle responsible for involuntary contractions of the stomach is ________ muscle
A) smooth B) cardiac C) intercalated D) striated E) skeletal
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