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Nervous System - Coggle Diagram
Nervous System
Cranial nerves
Facial nerve-moves facial muscles
Vestibulocochlear nerve-helps with hearing and balance.
Abcudens nerve-Moves they eye
Vagus nerve-extends from head to abdomen
Trigiminal nerve-Recieves sensory information from your face and sends information
Accessory nerve-controls muscles in the neck
Trochlear nerve-controls eye movement
Hypoglossal nerve-moves the tongue
Oculomotor nerve- moves the eye
Optic nerve allows you to see.
Olfactory nerve transmits environmental information to the brain.
Glossopharyngeal nerve-sensory information from sinuses.
Reflex arc
interneuron
motorneuron
sensory neuron
effector
Receptor
response
Stimuli
Tissues
microglial cells
remove damaged neurons and fight infections
astrocytes
Resposible for amount of energy in impulses
satellite cells
precursor to skeletal muscle cells.
Schwann cells(oligodendrocytes)
produce a myelin sheathe around axons
neuroglial cells
maintain homeostasis and produces myelin.
31 Spinal nerves
coccygeal
1 nerve
cervical
8 nerves
thoracic
12 nerves
lumbar
5 nerves
Sacral
5 nerves
Major parts and functions of the spinal cord
sensory functions
Carries information to the brain. EX. touch, pressure, pain,tempature, etc
automatic functions
Breathing, heart rate, digestion, etc
Motor functions
Sends signals from the brain
Classification of neurons
interneuron
Connects and transfers signals to motor and sensory neurons.
motor neuron
Connected to the CNS to send signals to muscles and internal organs.
Sensory neuron
Reacts to stimuli by sending symbols to the CNS.
Connective Tissue Coverings
perimysium
Sheathes and protects muscle fibers.
endomysium
Surrounds individual muscle fibers.
epimysium
Sheathes and protects skeletal muscle
Neurotransmitters
Adredaline(Epinephrine)
usually released in fight or flight scenarios.
Acetocholyne
controols blood pressure, and smooth muscles, internal organs.
Glutamate
carries signal to the brain
Major parts and functions of the brain
Cerebrum
Located in the top of the brain. Responsible for higher thought. Controls most motor function. Moving your arms and legs.
Brainstem
Located at the bottom of the brain, Connects the brain to the spinal cord. Responsible for most involuntary actions such as breathing and heartrate.
Cerebellum
Located at the back of the brain. Responsible for had eye coordination. Maintains posture throughout the body and coordinates muscle groups.
Major functions of the nervous system
memorization
retainment of information
involuntary movement
Heatbeat, digestion
Voluntary movement
Movement of limbs
Compare & contrast the autonomic and somatic nervous system
Heartbeat is involuntary
moving your arm is controlled
Breathing is automatic and controlled
Disorders associated with Nervous System
Cerebral palsy-efeects movement and cooordination.
Parkinson's-results from damage to nerve cells
Alzheimers-effects memory and behavior
Major divisions and subdivisions of the nervous system
the peripheral nervous system
Receive and send information to the brain. Branches out from the brain.
The centaral nervous system
The brain and spinal cord. Controls though, speech, reaction, etc.
Action potential & the Nerve Impulse
Action potentail
action potentiol
repolarization
depolarization
hyperpolarization
resting potentiol
resting potentiol
nerve impulese
Neural pathway that controls refllexes
Also responds to stimulation.