In a(n) ____________________ contraction, the muscle is prevented from shortening, so tension develops at constant muscle length
Fill in the blank(s) with correct word
isometric
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Which T cell toxin fragments DNA?
a) Perforin b) Tumor antigen c) Interferons d) Lymphotoxin e) Toxin T
If the axon terminal of a motor neuron suddenly became permeable to calcium ions,
A) the neuron will fire an action potential. B) the motor end plate will be depolarized. C) the motor end plate will be hyperpolarized. D) neurotransmitter release will be blocked. E) the neuron will become unable to stimulate the muscle cell.
Discuss the functions of the blood-brain barrier. What cellular characteristics contribute to its effectiveness?
What will be an ideal response?
The temperature control center within the anterior region of the hypothalamus is activated by ____ and initiates reflexes that mediate ____
a. cold, heat production and heat conservation. b. cold, heat loss. c. warmth, heat loss. d. warmth, heat production and heat conservation. e. warmth, vasoconstriction.