Vocabulary
How many cranial nerves are there? How many spinal nerves are there?
12 cranial nerves
31 spinal nerves
This structure in the brainstem controls vital function such as heart rate and breathing.
Medulla oblongata
I’m the part of your nervous system that helps you rest, relax, and digest your food. When the danger is gone, I calm everything down. Who am I?
Parasympathetic Nervous System
vision problems, muscle weakness, numbness or tingling in limbs, fatigue/dizziness, difficulty balancing/walking, cognitive changes.
Multiple Sclerosis
The 2 hemispheres of the brain are connected by the Cerebral Cortex
False, the 2 hemispheres of the brain are connected by the Corpus Callosum
What is the difference between an Afferent and Efferent? (include the flow of its nerve impulses)
An afferent is a sensory neuron that carries nerve impulses toward the CNS. An efferent is a motor neuron that carries nerve impulses away from the CNS and carry impulses to effectors
This brain structure sits just above the brainstem and acts as a relay station, directing most sensory signals to the cerebral cortex
Thalamus
I release chemical messages across the synapse, dopamine and serotonin are two of my kind. Who am I?
Neurotransmitters
affects movement, balancing problems, sleeping problems, most commonly affects adults after the age of 60, there's no cure
Parkinsons Disease
The autonomic nervous system has sympathetic and parasympathetic divisions.
True. The autonomic nervous system balances both divisions.
What controls involuntary activity of visceral muscles, glands, and internal organs?
The Autonomic Nervous System
This small structure that regulates fear and aggression and helps process emotional memories.
Amygdala
I’m the part of a neuron that receives incoming signals from other cells and sends them toward the cell body. Who am I?
Dendrites
This autoimmune disorder of the peripheral nervous system often begins with ascending weakness, starting in the legs and moving upward.
Guillain-Barre syndrome (GBS)
The cerebellum has more neurons than the entire cerebral cortex.
True. Despite being smaller, the cerebellum contains more neurons.
The cerebral cortex
These specialized regions along a myelinated axon are gaps where action potentials are regenerated to maintain signal strength
Nodes of Ranvier
I’m an automatic, rapid response to a stimulus that doesn’t require thinking. Who am I?
Reflex
This brain region, essential for forming new memories, is one of the first areas affected in Alzheimer’s.
The hippocampus
Pain signals always travel at the same speed through nerves.
False, different nerves travel pain faster; sharp pain travels faster than dull pain
What conducts voluntary impulses to skeletal muscles?
The Somatic Nervous System
This brainstem structure contains the reticular formation, regulating arousal, attention, and the sleep-wake cycle.
Midbrain
I’m the rapid electrical event that occurs only if a neuron reaches its threshold. Once I begin, I travel down the axon without losing strength, thanks to voltage-gated ion channels opening in sequence. Who am I?
Action Potential
This lobe of the brain is the most frequent origin of focal epilepsy, often causing déjà vu, fear, or rising abdominal sensations.
Temporal Lobe
The cerebellum initiates voluntary movement.
false, it coordinates and fine-tunes movement, but initiation occurs.