Multiple Choice
A certain toxin blocks voltage-gated potassium (K^+) channels in neurons. What is the likely impact of this toxin on the resting potential of a neuron?
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45. Nervous System
Neurons and Action Potentials
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes the primary function of nerves in the human body?
A
They produce hormones that regulate metabolic processes.
B
They store energy in the form of glycogen.
C
They provide structural support to muscles and bones.
D
They transmit electrical impulses between different parts of the body and the central nervous system.
Verified step by step guidance1
Step 1: Understand the role of nerves in the human body. Nerves are part of the nervous system, which is responsible for transmitting signals between the brain, spinal cord, and other parts of the body.
Step 2: Eliminate incorrect options by analyzing their functions. For example, producing hormones is a function of endocrine glands, not nerves. Similarly, storing energy in the form of glycogen is a function of the liver and muscles, not nerves.
Step 3: Consider the structural role of nerves. While nerves are important for communication, they do not provide structural support to muscles and bones. This is the role of connective tissues like tendons and ligaments.
Step 4: Focus on the correct function of nerves. Nerves transmit electrical impulses, which allow communication between the central nervous system (brain and spinal cord) and the rest of the body. This enables sensory perception, motor control, and coordination.
Step 5: Conclude that the correct answer is: 'They transmit electrical impulses between different parts of the body and the central nervous system,' as this best describes the primary function of nerves.
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