The Nervous System
Nerves and Ganglia located outside the brain and spinal cord
How many nerves are in the PNS
43 (31 spinal, 12 cranial)
What is responsible for processing information in the brain and spinal cord, enabling tasks such as muscle control, sensory perception, memory, and decision-making?
Gray Matter
What is the name of the brain region responsible for processing visual information?
Occipital lobe
What are the functions of the peripheral nervous system?
Connects the CNS to the rest of the body, sends messages to the brain, and carries out commands from the brain
What does it mean when spinal nerves are mixed
They carry both sensory and motor fibers
What is the largest part of the brain?
Cerebrum
What is the name of the brain region responsible for processing sensory information?
Parietal lobe
What are the two main subsystems of the PNS
Autonomic and Somatic
What type of cells carries messages through the nervous system using electrical and chemical signals
Nerve cells or Neurons
Which lobe is involved in problem-solving, decision-making, planning, impulse control, motor function, and speech production?
Frontal Lobe
What is the condition that affects the brain’s ability to control movement, characterized by tremors and rigidity?
Parkinson's Disease
What is the efferent/motor division
Transmits signals from the CNS to muscles and glands for movements and other functions.
Which system is responsible for "fight or flight"?
Sympathetic Nervous System
What are the five lobes of the brain?
Temporal, Frontal, Parietal, Occipital, and Insular
What is the process where a nerve cell sends an electrical signal to another cell?
Synaptic Transmission
What are the different types of spinal nerves
Cervical, Thoracic, Lumbar, Sacral, and Coccygeal nerves
What are non-neuronal cells in the nervous system that provide crucial support to neurons and do not conduct electrical impulses?
What are the three parts of the brainstem?
Midbrain, Pons, and Medulla Oblongata.
What is the name of the protective membrane that surrounds the brain and spinal cord?
Meninges