AT 2300 Final- Last Sections- Questions with
Complete Solutions
CNS
consists of the brain and spinal cord
PNS
cranial nerves, spinal nerves, ganglia
CNS (central nervous system)
Coordinates signals in and out
-Gives out instructions to other parts of the body to perform certain jobs
PNS (peripheral nervous system)
Conducts impulses (to and from CNS)
the sensory and motor neurons that connect the CNS to the rest of the body
SNS (somatic nervous system)
Sensory input (afferent)
Motor output (efferent)
Fight or Flight
ANS (autonomic nervous system)
Innervates smooth and cardiac muscle
Involuntary system
, Parasympathetic and Sympathetic
Rest and Digest
Pia Mater
Helps fix the spinal cord and anchor it down
Spinal Cord
Extends from Foramen magnum to approx. L2
Cervical Enlargement
Larger in this area because of the brachial plexus
Lumbar Enlargement
Larger in this area because of lumbosacral plexus
12 Pairs
Cranial nerves: ________ pairs
31 Pairs
Spinal nerves: _________ pairs
8 cervical
12 Thoracic
5 Lumbar
5 Sacral
1 Coccyx
Complete Solutions
CNS
consists of the brain and spinal cord
PNS
cranial nerves, spinal nerves, ganglia
CNS (central nervous system)
Coordinates signals in and out
-Gives out instructions to other parts of the body to perform certain jobs
PNS (peripheral nervous system)
Conducts impulses (to and from CNS)
the sensory and motor neurons that connect the CNS to the rest of the body
SNS (somatic nervous system)
Sensory input (afferent)
Motor output (efferent)
Fight or Flight
ANS (autonomic nervous system)
Innervates smooth and cardiac muscle
Involuntary system
, Parasympathetic and Sympathetic
Rest and Digest
Pia Mater
Helps fix the spinal cord and anchor it down
Spinal Cord
Extends from Foramen magnum to approx. L2
Cervical Enlargement
Larger in this area because of the brachial plexus
Lumbar Enlargement
Larger in this area because of lumbosacral plexus
12 Pairs
Cranial nerves: ________ pairs
31 Pairs
Spinal nerves: _________ pairs
8 cervical
12 Thoracic
5 Lumbar
5 Sacral
1 Coccyx