Skeletal muscles are innervated by:Question 12Select one:a.Medium unmyelinated fibersb.Large, unmyelinated fibersc.Small, unmyelinated fibersd.Large, myelinated fiberse.Small, myelinated fibers

Skeletal muscles are innervated by:

Step 1: Read the question carefully. The question is asking about the type of fibers that innervate skeletal muscles.

Step 2: Examine the options provided. The options are: a. Medium unmyelinated fibers b. Large, unmyelinated fibers c. Small, unmyelinated fibers d. Large, myelinated fibers e. Small, myelinated fibers

Step 3: Analyze the options. In order to determine the correct answer, we need to understand the characteristics of the fibers that innervate skeletal muscles.

Step 4: Recall the characteristics of skeletal muscle innervation. Skeletal muscles are innervated by motor neurons, which transmit signals from the central nervous system to the muscles. These motor neurons have long, myelinated fibers called alpha motor neurons.

Step 5: Compare the options with the characteristics of skeletal muscle innervation. From the options provided, the correct answer would be d. Large, myelinated fibers, as alpha motor neurons have large, myelinated fibers.

Step 6: Select the correct answer. The correct answer is d. Large, myelinated fibers.