Homeostasis: The Nervous System

What is the main function of the central nervous system?

• A) Regulating hormones
• B) Transporting nutrients
• C) Processing and interpreting sensory information
• D) Circulating blood

What is the primary function of the spinal cord?

• A) To produce cerebrospinal fluid
• B) To transmit nerve signals between the brain and the body
• C) To regulate breathing
• D) To control endocrine functions

What type of cells are primarily responsible for transmitting electrical signals in the CNS?

• A) Neurons
• B) Glial cells
• C) Epithelial cells
• D) Osteocytes

What is the main function of a neuron?

• A) To produce hormones
• B) To transmit electrical signals
• C) To store calcium
• D) To transport oxygen

What is the gap between two neurons called?

• A) Synapse
• B) Axon
• C) Dendrite
• D) Myelin sheath

Which part of the neuron receives incoming signals?

• A) Axon
• B) Soma
• C) Dendrites
• D) Myelin sheath

What is the function of the myelin sheath?

• A) To protect the neuron from damage
• B) To insulate the axon and speed up signal transmission
• C) To create synapses
• D) To nourish the neuron

Which type of neuron transmits signals from the CNS to muscles?

• A) Sensory neurons
• B) Motor neurons
• C) Interneurons
• D) Glial cells

What is the role of neurotransmitters in neuron communication?

• A) To generate electrical impulses
• B) To carry signals across the synapse
• C) To form the myelin sheath
• D) To break down waste products

Where are neurotransmitters stored in a neuron?

• A) Dendrites
• B) Axon terminals
• C) Soma
• D) Myelin sheath