Gap junctions can be found in some non-muscle tissues, where they permit unrestricted passage of small nutrient molecules between cells
a. True
b. False
Indicate whether the statement is true or false
True
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Tropic or trophic hormones
A) Are found in tropical organisms. B) Have the ability to cause other hormones to be released. C) Are secreted only from the hypothalamus. D) Both B and C
What hormone strengthens sympathetic responses and mobilizes carbohydrate and fat stores at times of stress?
a. cortisol b. testosterone c. epinephrine d. norepinephrine e. insulin
What protein is the principal component of skeletal muscle thick filaments?
A. actin B. myosin C. troponin D. calmodulin E. tropomyosin
Identify the bone containing the cribriform plate. What is significant about this structure?
A) sphenoid; it forms the floor of the cranium and the roof of the nasal cavity and olfactory foramina run through it B) sphenoid; it forms the posterior part of the hard palate C) ethmoid; it forms the floor of the cranium and the roof of the nasal cavity and olfactory foramina run through it D) ethmoid; it forms the posterior part of the hard palate E) palatine; it forms the posterior part of the hard palate