Nervous System
What is the main function of the nervous system?
To control and coordinate body activities
Which part of the brain is responsible for higher cognitive functions?
Cerebral Cortex
How many pairs of cranial nerves are there?
12
Which type of receptor detects temperature changes in the skin?
Thermoreceptors
The occipital lobe plays an important role in what type of processing?
Visual processing
What powers every thought, movement, instinct, or reflex in the body?
The nervous system
Which brain region processes auditory information?
Temporal lobe
What is the primary function of the Hypoglossal nerve (CN XII)?
Tongue movement
Meissner’s corpuscles are responsible for detecting what type of sensation?
Light touch
The prefrontal cortex is responsible for what two major functions?
Emotional regulation and executive functioning
What kind of signals do neurons use to communicate?
Electrical
What part of the brain coordinates voluntary movement and balance?
Cerebellum
Which cranial nerve provides major parasympathetic control to the heart, lungs, and digestive tract?
Vagus (CN X)
What detects pain from external injury?
Nociceptors
The angular gyrus is critical for what skill?
Reading comprehension
What two main parts make up the Central Nervous System (CNS)?
Brain and Spinal cord
Which structure acts as a sensory relay to the cerebral cortex (except for smell)?
Thalamus
What type of function is associated with cranial nerves responsible for taste, vision, and balance?
Special sensory
What initiates an action potential in a sensory neuron?
Opening of ion channels due to receptor deformation
The corpus callosum is responsible for what?
Connecting the two cerebral hemispheres
What are the three main functions of the nervous system?
Sensory input, integration, motor output
Damage to the cerebellum may cause what condition?
Ataxia
If a patient’s tongue deviates to the right when protruded, which nerve is likely damaged?
Right hypoglossal nerve
Sweating after exercise is an example of what nervous system function?
Motor output
Which cranial nerve is primarily responsible for phonation and speech articulation?
Cranial Nerve X – Vagus Nerve