Chapter 3: Biological Foundations of Health and Illness Flashcards
What is the Nervous System?
The body’s speedy, electrochemical communication system
What does the sensory nerve focus on?
Input to the brain/spinal cord
What do the motor nerves focus on?
Output from the brain/spinal cord to muscles and organs
What consist of all the nerve cells?
Central and Peripheral Nervous System
What does CNS stand for?
Central Nervous System
Where is CNS?
Brain and spinal cord
What does PNS stand for?
Peripheral Nervous System
What does the PNS comprise of?
The sensory/motor nerve fibers that connect the CNS to the rest of the body
What is the Somatic Nervous System?
Links the CNS with skeletal muscles
VOLUNTARY
What is the Automatic Nervous System?
Links the CNS with interal organs
INVOLUNTARY
What part is the Automatic Nervous System?
Peripheral NS
What does the Automatic Nervous System control?
The glands and the muscles of the internal organs
Where is the Sympathetic nervous system located?
Divisions of the autonomic NS
What does the Sympathetic nervous system control?
Arouses the body, mobilizing its energy in stressful situations
Where is the Parasympathetic nervous system?
Division of the autonomic nervous system
What does the Parasympathetic nervous system control?
Calms the body, conserving its energy
What is under the PNS?
Autonomic and Somatic NS
What is under the Autonomic NS?
Sympathetic and Parasympathetic nervous system
What is the order of an impulse?
Dendrities
Axon
Terminals
Synapses
What is an example of neurotransmitters (NT)?
Serotonin
Dopamine
GABA
What is GABA?
inhibitory of behaviors verbal and actions
Affected by age and alcohol
What is in the Hindbrain?
Cerebellum
Medulla
Pons
What is involved in Cerebellum?
Helps coordinate voluntary muscle movement.
Maintenance of balance
What is involved in the Medulla?
Controls heart rate, blood pressure, and breathing
What is involved in Pons?
Link between hindbrain and midbrain
Helps control breathing
Where is the midbrain?
Pathway between hindbrain and forebrain
What is the Midbrain in charge of?
Coordination of visual and auditory reflexes
Sustantia nigra
Superior Colliculus
What is the Sustantia nigra?
Neurotransmitter dopamine
Attention memory problem solving
What is Superior Colliculus?
Receives input from the retina and the visual cortex
What is in the Forebrain?
Limbic System
Cerebrum/Cerebral Cortex