NERVOUS SYSTEM
What are the 2 components of the nervous system?
PNS and CNS
What are neurons also known as?
Nerve cells
What are the possible types of cranial nerves(3) ?
Motor, sensory, both
How many vertebrae are in the thoracic portion of the spinal column?
12
What’s the largest lobe of the cerebrum?
Frontal lobe
How many cranial nerves are in the PNS? How many spinal nerves?
12- Cranial
31- Spinal
What is the role of neurons?
To transmit information
What cranial nerve is responsible for sense of vision?
Optic nerve (CN II)
What are the 2 ways the spinal cord can be viewed?
Vertical anatomy and transverse anatomy
What separates the Right and left hemisphere of the cerebrum?
Longitudinal fissure
What are the functional divisions of the nervous system?
Autonomic and Somatic
What is the role of a dendrite?
Transmit information towards the soma
What is the name of cranial nerve VI?
Abducens
True/ False: The motor system is part of the afferent tract.
False
What area of the cerebrum is responsible for motor speech planning?
Brocas area
Which system involves the fight or flight response? (specific)
Sympathetic
What’s the name of the structure where the cell body meets the axon?
Axon hillock
How many nerves are responsible for sensory AND motor function?
Four (Trigeminal, facial, glossopharyngeal, vagus)
What is gray matter made up of?
Cell bodies
How much does the cerebrum weigh?
3 lbs
What anatomically makes up the central nervous system?
Cerebrum, cerebellum, subcortical structures, brain stem, spinal cord
Hearing, balance, and smell are a part of which type of neuron?
Bipolar neurons
Which cranial nerve works close with the Vagus nerve?
Glossopharyngeal
What describes the function of the spinal reflex arch?
Provides an efferent response to the basic changes in the length of muscles
What are the two types of cells that make up the cerebrum?
Pyramidal and non-pyramidal