The Nervous System Contreras Nathan
Major Functions of the Nervous system
Cranial Nerves And Spinal Nerves
Major Divisions and Subdivisions of the Nervous system
Neurotransmitters
Central Nervous system
Peripheral Nervous system
This is all the nerves from the brain and spinal cord put together. It carries impulses to and from spinal nerves to spinal and cranial nerves to the cranium.
Contains the brain and the spinal cord. This recieves information issues like instruction. Has control over thoughts and emotions, lastly, it's in charge of your memories
Biochemicals that carry signals to synaptic cleft
Anatomy Of the Spinal Cord
Classifications of Neurons and Coverings
Integrative Function
Motor Function
Sensory Function
This Sensory Funtion detects changes in stimuli and withing or outside the body
Analyzes sensory information, stores some parts and makes decisions that seem appropriate.
Responds to Stimuli by initiating muscular contractions or glandular secretions like sweating
Neurons
Coverings
Bipolar: One Dendrite and one Axon
Unipolar: Fused Axon and one dendrite
Multipolar: Many Dendrites and one Axon
Dendrites, Cell Body, Mitochondrion, Nucleus, Axon, Schwann Cell, Node of Ranvier, Nuerilemma, Nucleus of Schwann Cell, Myelin Sheath, And Cell membrane of Axon
Cranial Nerves: Olfactory(Sense of Smell) Optic Nerve(Sight) Oculomotor, Trochlear, Trigeminal(General Sensation) Accessory, Hypoglossal, Vagus(Taste). Vestibulocochlear, Glossopharyngeal
Spinal Nerves: Cervical Spinal nerves, Thoracic Spinal Nerves, Lumbar Spinal Nerves, Sacral Spinal Nerves
The Connection BetweenThe brain and brainstem to the rest of the body. Has 31 pairs of spinal nerves and ends at conus medularis
Reflex Arc
The nerve pathway of a reflex response. Sensory receptor to afferent nerve ending, sensory sends signals to CNS, Synapse to connection between sensory neuron and motor neuron, then delivers a response, effector and target organ
Compare and Contrast The automatic Nervous System
Both Bring the information to the motor neaurons
Soatic: Voluntary, Conscious, Responds to external environment. Automatic: Involuntary, Unconscious responds to internal environment
Action Potential
Nerve impulses transmitting during action potential: only axons are capable of Action Potential