The type of smooth muscle contraction occurring in the esophagus during swallowing is called:
A. peristalsis.
B. mass movement.
C. segmentation.
D. distension.
E. eccentric.
A
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Which of the following is NOT a common characteristic of a negative feedback system?
a) regulates conditions in body that remain fairly stable over long periods b) important in maintaining homeostasis c) involves control centers in the nervous or endocrine systems d) stimulates changes that reverse the direction of the stimulus e) usually requires an event outside the feedback system to shut it off
In ________ a stimulus produces a response that amplifies or enhances the original stimulus
A) negative feedback B) positive feedback C) homeostatic equilibrium D) dynamic equilibrium E) homeostasis
A calcified skeletal muscle is an example of
A) bone spurs. B) osteoporosis. C) heterotopic bone formation. D) osteodysplasia. E) osteomalacia.
Where are cells with aldosterone receptors found?
A. Posterior pituitary B. Proximal convoluted tubule C. Adrenal medulla D. Adrenal cortex E. Distal convoluted tubule