Neurons may be classified according to several characteristics. Which of the following is correct?
A) Group A fibers are mostly somatic sensory and motor and are the smallest in diameter.
B) Group B fibers are highly myelinated and have the highest conduction velocities.
C) Group C fibers are not capable of saltatory conduction.
D) A small cross-sectional area allows shorter conduction times.
C) Group C fibers are not capable of saltatory conduction.
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Animals have been shown to increase the total number of SGLT-1 transporters in the gut by
A) Producing more transporters per unit surface area of the gut. B) Increasing the surface area of the gut per unit length. C) Increasing the total length of the intestine. D) All of the above
The component of a feedback system that detects change in the external or internal environment is:
A. stimulus B. effector C. receptor D. control center
What is released by axon terminals into the synaptic cleft to stimulate a muscle to contract?
A) potassium ions B) actin C) sodium ions D) acetylcholine E) myosin heads
People sit on the ________, the most inferior coxal bone.
A. pubis B. ilium C. ischium