Quiz Questions Flashcards
Saltatory conduction occurs only
in Myelinated neurons
Motor information exits the spinal cord through the:
Ventral root
Approximately 75% of parasympathetic outflow is provided by the
vagus nerves
Myelinated neurons conduct signals more rapidly than unmyelinated ones.
True
Sensory information enters the spinal cord through the:
Dorsal root
All the motor neurons that control skeletal muscles are
multipolar neurons
Oligodendrocytes perform the same basic function in the brain as Schwann cells do in the peripheral nerves.
True
The entire spinal cord is comprised of _____ Spinal nerves?
31 Pairs
Approximately 75% of parasympathetic outflow is provided by the
Vegas Nerve
Which of the following represents a link between the nervous system and the endocrine system (hormones)?
hypothalamus
The division of the autonomic nervous system that prepares the body for activity and stress is called:
Sympathetic
All of the following are true of the nervous system, except that it
functions independent of the endocrine system.
The preganglionic fibers of the sympathetic division of the ANS originate in the
thoracolumbar region of the spinal cord
The brain and spinal cord comprise the _________ nervous system.
central
Which of the following is not a layer of the Eye?
Conjunctival Tunic
The division of the autonomic nervous system that prepares the body for activity and stress is called
Sympathetic
The pigmented portion of the eye is the
iris
Which of the following represents a link between the nervous system and the endocrine system?
hypothalamus
All of the following are special senses except?
Touch
Gustatory receptors are located in the
tongue
The brain and spinal cord comprise the _________ nervous system.
Central
Plasma contributes approximately _____ percent of the volume of whole blood?
55
What is the most common blood type?
O
The Hypothalamus produces all of the following except?
Triiodothyronine
Neurons of the supraoptic nuclei of the hypothalamus manufacture
ADH
