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Extensor thrust reflex
Cross extensor reflex
Rami, trunks, divisions, and cords
Rami, divisions, cords, and trunks
Divisions, rami, trunks, and cords
Trunks, divisions, cords, and rami
Supplies innervation to the lateral rectus muscle of the eye
Relays sensory information from taste buds on the tongue
Exits from the medulla
If paralyzed, exhibits Bellʹs palsy
Are rapid, predictable, learned responses
May be modified by learned behavior
Are autonomic only
Are always mediated by the brain
The center may be a single synapse between a motor and a sensory neuron.
There are always multiple synapses with chains of interneurons.
It is always located in the CNS.
The center is a simple reflex arc.
The dorsal rami of all spinal nerves unite to form complex networks
Only ventral rami form plexuses
Each branch of the plexus contains fibers from a single spinal nerve
The ventral rami of thoracic spinal nerves unite to form the thoracic plexus
Golgi tendon reflex
Crossed extensor reflex
Are found primarily in connective tissue
Are anatomically unencapsulated
Medial rectus muscle
Lateral rectus muscle
Superior rectus muscle
Inferior rectus muscle
Is more successful than with the PNS
Typically allows axonal sprouting of 20 mm
Is complicated by secondary demyelination
Is promoted by growth inhibitors and glial scars
Magnitude estimation is the simplest level of sensation.
Perceptual detection is the ability to detect how much stimulus is applied to the body.
Pattern recognition allows us to see a familiar face.
Spatial discrimination allows us to recognize textures.
Pudendal and posterior femoral cutaneous
Posterior femoral cutaneous and tibial
Pudendal and common fibular
Common fibular and tibial
Is characterized by partial paralysis of diaphragm muscles
Is characterized by loss of vision
Is often caused by inflammation of the trigeminal nerve
Is characterized by paralysis of facial muscles
Normal in an infant less than 4 years old
A reflex whose physiological mechanism is well understood
When the great toe dorsiflexes and the other toes fan laterally
Caused by incomplete development of the thalamus in the infant
Effector, afferent neuron, integration center, efferent neuron, receptor
Receptor, afferent neuron, integration center, efferent neuron, effector
Effector, efferent neuron, integration center, afferent neuron, receptor
Receptor, efferent neuron, integration center, afferent neuron, effector
Presynaptic nerve impulses to postsynaptic nerve impulses
Stimulus information to nerve impulses
Receptor energy to stimulus energy
Afferent impulses to efferent impulses
Ganglia are collections of neuron cell bodies in the CNS that are associated with efferent fibers.
Afferent nerve fibers contain cell bodies of sensory neurons.
The dorsal root ganglion is a motor-only structure.
The cell bodies of afferent ganglia are located in the spinal cord.
Postpoliomyelitis muscular atrophy
The spinal cord
The corpus callosum
Root hair plexuses
Brain stem nuclei
Complete loss of sensation
A complete loss of voluntary movement
Loss of neither sensation nor movement but only of autonomic control
A complete loss of sensation and movement