Please enable JavaScript.
Coggle requires JavaScript to display documents.
Autonomic Nervous System (ANS): Controlled system which regulates bodily…
Autonomic Nervous System (ANS): Controlled system which regulates bodily function
Peripheral nervous system (PNS):
Consists of nerves and ganglia outside of the brain and spinal cord.
Sensory (afferent) division:
carries feedback into the Central Nervous system (CNS) from organs.
Visceral sensory:
involuntary control of many general senses such as pain or temperature and special senses such as taste and smell.
Somatic sensory:
voluntary control of general senses such as touch and vibration and special senses such as hearing and vision.
Motor (efferent) division:
carries information from the CNS to control muscles.
Somatic nervous system:
voluntary control of skeletal muscles allowing movement of the body. Consists of afferent and efferent nerves.
Neurons: has one single neuron extending from CNS to an effector organ. Neurotransmitter ACh is located at the effector organ stimulating it.
Autonomic nervous system:
involuntary control of smooth and cardiac muscles and glands. E.g.: controls breathing, and heart rate.
Sympathetic Division:
known as "fight or flight" acts during exercise, excitement, embarrassment, and emergencies. Origin is the cranial nerves and brain stem as well as sacral region.
Neurons: a group or chain or two neurons extend from the CNS to the effector organ. The first neuron traveling from the CNS connects at the ganglion to the neurotransmitter ACh and continues along the second neuron where it connects directly to the the neurotransmitter NE at an effector organ.
Parasympathetic Division:
activated during rest and digestion. Relaxes the bodies organs. Originates in Thoracic and Lumbar regions.
Neurons: also consists of a group of neurons extending from the CNS to an effector organ. The first neuron connects at a ganglion to ACh and continues through the second neuron to the effector organ where it connects to ACh.
Neurons:
Postganglionic Neurons:
originate in the PNS
Preganglionic Neurons:
originate in the CNS
12 Cranial Nerves:
consists of sensory, motor, and mixed nerves
Mixed nerves
V Trigeminal:
three branches of general sensory, Opthalmic, Maxillary, and Mandibular
VII Facial:
Taste, proprioreception from muscles of facial expression
IX Glossopharyngeal:
Taste, somatosensation from oral mucosa and tongue; proprioreception in muscles involved with swallowing; visceral sensation from baroreceptros and chemoreceptors
X Vagus:
Taste, proprioreception from muscles involved in swallowing and speech; visceral sensation from baroreceptors, chemoreceptors, thoracic viscera, and abdominal viscera
Primarily motor nerves
IV Trochlear:
Proprioreception from an extrinsic eye muscle
III Oculomotor:
proprioreception from extrinsic eye muscles
VI Abducens:
Proprioreception from an extrinsic eye muscle
XI Accessory:
Proprioreception from sternocleidomastoid and trapezius muscle
XII Hypoglossal:
Proprioreception from tongue muscles
Sensory nerves
II Optic:
vision
VIII Vestibular:
transmits equilibrium and sound
I Olfactory:
olfaction
Spinal nerves:
carries motor and sensory neurons throughout the body from the spine.
ventral ramus:
somatic innervation of lateral and anterior neck and limbs and ventral and lateral trunk
dorsal ramus:
somatic innervation of posterior neck and back
Dermatome:
area of skin innervated by spinal nerves
Spinal nerve plexus:
a branching network of intersecting nerves filled with afferent and efferent nerves.
