Exam 1 – Lecture 6: Dr Beasley Neuro-Muscular Flashcards
What does afferent mean?
Towards the central nervous system to control sensory input
What does efferent mean?
Away from the central nervous system to control motor output
What are the parts of a neuron?
Dendrite
Cell body
Axon
What does a dendrite do?
Input
What does an axon do?
Output
What are the 3 types of neurons?
Multipolar
Pseudounipolar
Bipolar
What does a multipolar neuron do?
Motor
What does a pseudounipolar neuron do?
Sensory
What does a bipolar neuron do?
Special sensory (smell and vestibular)
Where is a synapse?
Between axon:dendrite and axon:muscle
What makes up the peripheral nervous system?
Nerves, neuromuscular junction, muscles
What makes up the central nervous system?
Brain and spinal cord
What is a group of neurons called inside the CNS?
Nuclei
What is a group of axons called inside the CNS?
Tracts
What is a group of neurons called outside the CNS?
Ganglia
What is a group of axons called outside of the CNS?
Nerves
What does the brain receive signals from?
Body receptors
What are signals?
Afferent input from various receptors
What signals do exteroceptors do?
Touching
Nociceptors
What signals do proprioceptors do?
Stretching of muscles/joints/tendons
What gets signals from outside the body?
Extroceptors
What are the different exteroceptors?
Mechano-receptor Chemo-receptor Photo-receptor Thermo-receptor Nociceptor
What gets signals from inside the body?
Proprioceptors
What are the different proprioceptors?
Muscles
Tendons
Joints