Put the following layers of the digestive tract wall in order from the lumen to the deepest layer. 1. lamina propria 2. muscularis externa 3. submucosa 4. digestive (mucous) epithelium 5. serosa 6. muscularis mucosae
A) 5, 2, 3, 6, 1, 4
B) 4, 1, 6, 3, 2, 5
C) 4, 6, 3, 1, 2, 5
D) 5, 4, 2, 6, 1, 3
E) 1, 4, 3, 6, 2, 5
B
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The type of muscle fibers that have only a single nucleus, both thick and thin filaments, but no Z discs, are
A. skeletal. B. cardiac. C. smooth. D. cardiac and smooth. E. cardiac and skeletal.
The pars distalis is part of the adenohypophysis
Indicate whether this statement is true or false.
If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________
A) the impulse would move to the axon terminal only, and the muscle contraction would occur B) the impulse would spread bidirectionally C) muscle contraction would occur D) the impulse would move to the axon terminal only
The gluteus maximus is the most powerful muscle during __________.
A. flexion B. medial rotation C. lateral rotation D. extension