Central nervous system, peripheral nervous system and neurons st

Comprised of the brain and spinal cord, controls the body by processing and responding to sensory input from the peripheral nervous system.

• Neurotransmitters
• Myelin sheath
• Central nervous system (CNS)
• Somatic nervous system

Organ of the body which controls thoughts, emotions, motivations and motor responses.

• Sensory neurons
• Spinal cord
• Glial cells
• Brain

The bundle of nerve fibres connecting the brain with the peripheral nervous system.

• Soma
• Dendrites
• Myelin sheath
• Spinal cord

Communicates information from the body to the central nervous system (e.g. aches and pains) and to the body's organs, glands and muscles.

• Sympathetic nervous system
• Peripheral nervous system (PNS)
• Somatic nervous system
• Autonomic nervous system (ANS)

The division of the peripheral nervous system that carries sensory information into the central nervous system, and also carries motor commands from the central nervous system to the skeletal muscles.

• Parasympathetic nervous system
• Somatic nervous system
• Homeostasis
• Central nervous system (CNS)

Neurons that communicate messages from the central nervous system to the particular muscles that an organism intends to move at any particular moment. Also referred to as 'efferent neurons'.

• Spinal cord
• Motor neurons
• Homeostasis
• Sensory neurons

A neuron that carries information from the body and from the outside world into the nervous system. Also referred to as 'afferent neurons'.

• Myelin sheath
• Sensory neurons
• Axon
• Neurons

Consists of the parasympathetic and sympathetic branches. It s responsible for the communication between the body's nonskeletal muscles, and the internal organs and glands that carry out bodily functions. Operates without voluntary control or conscious awareness.

• Nucleus
• Autonomic nervous system (ANS)
• Sensory neurons
• Neurotransmitters

A branch of the autonomic nervous system, responsible for maintaining our day-to-day functioning and for most of the automatic functions of the body such as digestion, heart rate, breathing and some glandular functions. Calms/relaxes the body.

• Central nervous system (CNS)
• Dendrites
• Sympathetic nervous system
• Parasympathetic nervous system

A branch of the autonomic nervous system that activates the fight, flight or freeze response. Dominates during times of stress.

• Myelin sheath
• Autonomic nervous system (ANS)
• Spinal cord
• Sympathetic nervous system