Unit 3.6 Flashcards
The spinal cord is coursing through the
Can be divided into
Vertebral canal
Cervical, thoracic, lumber, sacrum, coccyxgeal
The spinal meninges are direct continuations of the
Does the Dura meter of the spinal cord adhere to bone
The arachnoid mater is positioned
The cranial arachnoid mater is
Cranial meninges but differ from the cranial meninges in several ways
No, it is suspended from the foreman magnum and essentially hangs into the vertebral canal
More closely to the Dura Mater than the Pia mater
Closer to the surface of the Pia mater which is adhere to the neurological tissues
The Pia mater of the spinal cord remains in contact with _ and secures
Neural tissues
The inferior cord by filum terminale
The filum terminale is Pia mater that
Is readily identified because it is
Embryonically attached to the body of S1
It is more white and color and comparison to other inferior neurological tissues
The _ of the meninges covering the spinal tissues crate changes in the spinal space
Spatial arrangement changes
The epidural space is found
Contains
Is a
Between the bone of the vertebral canal and the Dura Mater
Aerial art, tissue, vessels, fat adipose tissue
Real space that is used clinically for anesthesia
The subdural space is found
Is a
Between the dura mater and the arachnoid mater
Potential space
The subarachnoid space is found
Contains
Between the arachnoid mater and the Pia mater
CSF and it used clinically for diagnostic procedures
White matter implies
Termed
The columns that surround the horns and are Regions of the anterior and lateral columns are ascending fibers known as
Other areas of the anterior and lateral columns are descending fibers known as
Myelinated axons within the spinal cord
Columns
Ascending and descending tracts to and from the neurons within the horns
Sensory afferent tract
Motor efferent tract
Dorsal roots are
Axons in the dorsal root include
Dorsal root ganglia are
Axons projecting from the sensory afferent neurons located in the dorsal horns of the spinal cord
Both somatic sensory and visceral sensory fibers
A collection of special neurosis and sensory neurons located outside of the spinal cord
Ventral roots are
They include
Axons projecting from the motor efferent neurons located in the ventral horns of the spinal cord
Somatic motor and autonomic motor efferent fibers
Spinal nerve- dorsal ramus mixed sensory and motor fibers that innervates the
Ventral ramus are mixed sensory and motor fibers that innervates the
Posterior surface of the trunk
Anterior surface of the trunk and the appendages
Reflex arcs protects the body from
Stages
Immediate harm as thought processes are not involved
1) a stimulus
2) sensory info travels through sensory neuron to the spinal cord
3) the nerve impulse is transmitted to the integration center and depending on the stimulus there are takes one of two paths
A) direct stimulation of motor neurons in the spinal cord is termed a mono synaptic reflex arc
B) stimulation of the motor neuron by an inter neuron in the spinal cord is termed poly synaptic reflex arc
4) activation of the effector organ (tendon stretch reflex- monosynaptic, flexor withdrawal reflex- polysynaptic)
The primary neuron is the
The secondary is in the
The tertiary is in the
PNS for afferents and CNS for efferents
Dorsal horn and ventral horns
Brain (thalamus) and cprd
