Lecture 10- Nervous System Flashcards
What are the strings of axons at the end of the CNS
Cauda equina
Types of afferent neurons
bipolar
pseudounipolar
Types of efferent neurons
multipolar
Are afferent or efferent neurons found in the dorsal root
Afferent (pseudounipolar)
What type of neurons are found in the ventral root?
Efferent (motor)
Where is the only place the spinal nerve exists
Intervertebral foramen
What does the spinal nerve consist of?
Afferent and efferent neurons
is the ventral or hypaxial branch larger?
Ventral
How many CN
12 pairs
Which two CN exit the head?
CN10
CN11
How many pairs of spinal nerves?
35
Are neurons longer in the cranial vertebral column of caudal
Caudal
Which spinal nerve exits through a vertebrae
C1
What are the qualities of a visceral system
tubular
lined by mucous membrane
one or more openings to the body surface
Where are general somatic efferent neurons found?
spinal nerves
What type of muscle do general somatic efferent nerves control?
Skeletal muscle
What type of muscle do general and special visceral efferent neurons innervate?
GVE: Smooth and cardiac
SVE: skeletal muscle of head
Where can the general visceral efferent neurons be found?
Spina nerves and some cranial nerves
Which system makes up the autonomic nervous system (GSE, GVE, or SVE)?
general visceral efferent
What does the SVE neurons control?
Pharynx, larynx, skeletal muscle of head
What are the divisions of the afferent nervous system?
General somatic afferent
Special somatic afferent
General visceral afferent
Special visceral afferent
What do GSA neurons sense?
Touch, pain, and temperature
Where are GSA neurons found?
Spinal nerves and CN V
What type of neuron is GSA
pseudounipolar
What do SSA neurons sense?
Visiosn and hearing
What type of neurone is SSA?
Bipolar
What do GVA neurons sense?
stretch, bp, and chemical signs within the blood vessels and organs
What do GVA neurons communicate to
GVE
Where are GVA neurons found?
Spinal nerves and CN
WHat type of neuron is GVA?
Pseudounipolar
What do SVA neurons sense?
smell and taste
Where are SVA neurons found?
CN
Where are proprioceptive neurons found
Muscle tendons and joints
CN and spinal nerves
