Somatic System Flashcards
CNS parts
PNS parts
Brain and spinal cord
Spinal nerves and cranial nerves
Somatic nervous system does what
Voluntary movements
Autonomic nervous system does what
Involuntary and visceral actions
Efferent division
What kind of action
Through which root
Somatic types
Visceral types
Motor
Ventral
Skeletal muscle motor movements
Smooth muscle, cardiac muscle, ANS parasympathetic and sympathetic division
Afferent division
What kind of function
Through which root
Somatic types (general and special)
Visceral types (general and special)
Sensory
Dorsal
Touch, pain, pressure, temp, proprioception.
Special: hearing, equilibrium, vision, smell
Stretch, pain, temp, chemical change, nausea, hunger
Special: taste
__ cranial nerves arise from the ___ exit through the ___ except for which CN
__ pairs of spinal nerves that arise from the ___ and exit the __ __ through the ___ foramina
12, brain, foramina. CN XI- enters and exits skull
31, spinal, vertebral column, intervertebral
Spinal nerves that innervate skeletal muscle:
Spinal nerves that innervate skinL
Myotome
Dermatomes
Input: __ or __ neurons carry impulses __ CNS
Output: __ or __ neurons carry impulses __ organs, muscles, glands
Sensory, afferrent, to
Motor, efferent, to
Somatic impulses are what
Autonomic impulses are what
Voluntary
Involuntary
Synapses are where what
One cell communicates with the next
How many cervical nerves
8
Arachnoid is not ___ with dura
Continuous
Spinal cord extends from ___ ___ to the level of __ or ___
Foramen magnum, L1-L2
Cervical nerves exit ___ cervical vertebra
Thoracic nerves exit ___ thoracic vertebra
Over
Under
Cauda equine is below level of __, __
L1, L2
