Functions of the Nervous System Flashcards
The Basic Nervous System consists of
- CNS
- SNS
Cranial nerves perform basic functions of
The head and neck
Spinal nerves perform basic functions of the
Limbs and trunk
Motor neurons control
Skeletal muscles
What is the function of motor neurons?
They provide movement, tone and posture
The Automatic Nervous System assists in
- Circulation
- Respiration
- Digestion
Complex functions are performed more by the
Parts of the brain
What are lower motor neurons?
Efferent neurons from the PNS that synapse to control skeletal muscle
Lower motor neurons have somas in the
Brain stem or spinal cord
A Motor Unit consists of
- Motor neuron
- Skeletal muscle cells
The Neuromuscular junction is one in which
The lower motor neuron targets muscle cells
Neuromuscular junctions are types of
Synapse
What happens when lower motor neuron fires an AP?
AP causes for skeletal muscle cells to contract
The motor unit size depends on
The size of the muscle
Abnormalities in the lower motor neuron causes for
Lower Motor Neuron Signs
