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What do neurons do?
Send the signals
What do neuroglia do?
Support neurons
What is black?
Cell body
What is purple?
Nucleus
What is green?
Dendrites
What is blue?
Myelin sheath
What is yellow?
Node of Ranvier
What is red?
Axon
What is grey?
Schwann’s cells
What is orange?
Axon terminals
What is the most abundant CNS neuroglia?
Astrocytes
Astrocytes
Support developing neurons and synaptic junctions
Protect neurons from harmful substances in blood
Microglial cells
Defensive cells in CNS; monitor neuron health; act as the phagocyte of the nervous tissue
Ependymal
Form permeable barrier between central canal and nervous tissue
Circulate the cerebrospinal fluid of the brain and spinal cord
Where is the ependymal?
Lines central cavities of brain and spinal cord
Oligodendrocytes (CNS)
Produce myelin sheath of CNS
Satellite cells (PNS)
Surround neuron cell bodies
Schwann cells (PNS)
Form myelin sheath of PNS; nerve regeneration
What is A?
Longitudinal fissure
What is b?
Precentral gyrus
What is c?
Central fissure
What is d?
Post central gyrus
What is A?
Brain stem
What is B?
Midbrain
What is C?
Pons
What is D?
Medulla
What is 1?
Corpus callosoum
What is 2?
Cerebellum
What is 3?
Arbor vitae
What is number 1?
Fornix
What is 2?
Fourth ventricle
What is 3?
Inferior colliculus
What is 4?
Superior colliculus
What is 5?
Lateral ventricle (space)
What is 6?
Mimillary body
What is 7?
Medulla
What is 13?
Pineal gland
What is 14?
Pons
What is 15?
Spinal cord
What is 16?
Superior colliculus
What is 17?
Thalamus
What is 18?
Hypothalamus
Subdivision of the nervous system involves motor responses that are voluntary or conscious in nature
Somatic nervous system
This primary division of the nervous system is composed of the cranial nerves and spinal nerves
Peripheral nervous system
This subdivision of the nervous system often called the “brain of the gut” involves involuntary responses of the GI tract such as peristalsis
Enteric nervous system
This primary division of the nervous system is composed of the brain and spinal cord
Central nervous system (CNS)
This subdivision of the nervous system, made of the sympathetic and parasympathetic nervous system, involves involuntary motor responses meaning that they are not consciously controlled
Autonomic nervous system
This type of neuron conveys sensory information from sensory receptors to the CNS
Sensory neuron
This type neuron relays impulses from the CNS to effector organs, muscles, or glands
Motor neuron
This type of neuron, found in the CNS, bridge the gap between sensory and motor neurons
Interneurons
This nerve functions as a sensory nerve in hearing and balance
Vestibulocochlear nerve (VIII)
This nerve functions as a sensory nerve in the sensation of smell
Olfactory nerve (I)
This nerve functions in the sensation of the face and supply motor function to the chewing muscles
Trigeminal nerve (V)
This nerve functions in supplying sensory information relating to vision
Optic nerve (II)
This nerve functions in supplying motor function for four of the extrinsic muscle of the eyeball
Oculomotor nerve (III)
This nerve is the only one that extends beyond the head and neck and supplies motor sensory information to the viscera of the abdomen and thorax
Vagus nerve (X)
What are the sensory nerves?
Olfactory, optic, and vestibulocochlear
What are the motor nerves?
Oculomotor, trochlear, Abducens, spinal accessory, and hypoglossal
What nerves are both motor and sensory?
Trigeminal, facial, vagus, and glossopharyngeal
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