Brain Anatomy

What is the function of the somatic nervous system?

• Manages the body's fight or flight response

• Controls voluntary movements and processes sensory information from the external environment.

• Regulates heart rate and digestion

• Controls the release of hormones

Explain the difference between the sympathetic and parasympathetic divisions of the autonomic nervous system.

• The sympathetic division is for fight or flight, while the parasympathetic division is for rest and digest.

• The sympathetic division controls voluntary actions, while the parasympathetic division controls involuntary actions.

• Both divisions serve the same purpose.

• The sympathetic division is for rest and digest, while the parasympathetic division is for fight or flight.

How do nerves transmit signals in the body?

• Nerves transmit signals through chemical reactions

• Nerves transmit signals through gravitational forces

• Nerves transmit signals through electrical impulses called action potentials.

• Nerves transmit signals through sound waves

Describe the structure and function of neurons.

• Neurons communicate through sound waves and vibrations.

• Dendrites transmit signals, the cell body processes them, and the axon receives signals.

• Neurons are made up of bones, muscles, and blood vessels.

• Neurons are composed of a cell body, dendrites, and an axon. Dendrites receive signals, the cell body processes them, and the axon transmits signals. Neurons communicate through electrical and chemical signals.

What are the components of the central nervous system?

• Liver and kidneys

• Brain and spinal cord

• Stomach and intestines

• Heart and lungs

What are the different types of neurons based on their function?

• Sensory neurons, Motor neurons, Interneurons

• Olfactory neurons

• Auditory neurons

• Visual neurons

Identify the types of nerves in the human body.

• Sensory nerves, motor nerves, mixed nerves

• Auditory nerves

• Visual nerves

• Taste nerves

What is the role of the sensory neurons?

• Generate motor responses

• Transmit sensory information

• Regulate body temperature

• Produce hormones

Explain the process of action potential in a neuron.

• The process of action potential in a neuron involves depolarization, opening of voltage-gated sodium channels, influx of sodium ions, positive feedback loop, propagation along the neuron, opening of voltage-gated potassium channels, efflux of potassium ions, and restoration of resting membrane potential.

• Propagation along the neuron occurs through the opening of voltage-gated calcium channels.

• Action potential in a neuron is initiated by the efflux of sodium ions.

• The process of action potential in a neuron involves hyperpolarization instead of depolarization.

How does the central nervous system coordinate responses to stimuli?

• By using telepathy

• Through a network of neurons sending signals between sensory receptors, the brain, and motor neurons.

• Through a series of chemical reactions

• Through a complex system of levers and pulleys