Nervous System

The nervous system is structurally divided into two main parts. What are these two parts?

• Central Nervous System and Somatic Nervous System

• Peripheral Nervous System and Autonomic Nervous System

• Central Nervous System and Peripheral Nervous System

• Somatic Nervous System and Autonomic Nervous System

Which part of the brain is responsible for regulating breathing, blood pressure, heart rate, balance, and movement coordination?

• Forebrain

• Midbrain

• Hindbrain

• Cerebrum

What is the primary role of the Autonomic Nervous System (ANS)?

• Controlling voluntary actions of skeletal muscles

• Processing sensory information from the environment

• Regulating the body's internal environment and involuntary functions

• Coordinating balance and movement

Which part of a neuron typically receives signals from other cells?

• Axon

• Cell Body

• Dendrites

• Synapse

What do some glial cells produce that insulates the axons of neurons and helps signals travel faster?

• Cerebrospinal fluid

• Myelin sheath

• Neurotransmitters

• Blood-brain barrier

When a neuron is at rest, what is the electrical charge inside the neuron compared to its surroundings?

• More positive

• More negative

• Neutral

• Constantly changing

Which ion is found in higher concentration inside a neuron when it is at rest?

• Sodium (Na+)

• Chloride (Cl-)

• Potassium (K+)

• Anions (A-)

How is an action potential described in terms of its occurrence?

• It can be strong or weak depending on the signal

• It only happens if the signal is very strong

• It either happens completely or not at all

• It gradually increases in strength as it travels