[09] Sensory and Motor Pathways Flashcards

1
Q

What are sensory pathways?

A

Nerve pathways that transmit sensory information from the body to the CNS

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2
Q

What are motor pathways?

A

Nerve pathways that transmit commands from the CNS to the muscles

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3
Q

What are the main types of sensory pathways?

A
  • Somatosensory pathways
  • Visual pathways
  • Auditory pathways
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4
Q

What are the main types of motor pathways?

A
  • Pyramidal pathways
  • Extrapyramidal pathways
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5
Q

What is the function of somatosensory pathways?

A

They transmit information about touch, temperature, pain and body position

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6
Q

What is the function of visual pathways?

A

They transmit information about sight

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7
Q

What is the function of auditory pathways?

A

They transmit information about sound

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8
Q

What is the function of pyramidal pathways?

A

They control voluntary movements

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9
Q

What is the function of extrapyramidal pathways?

A

They control involuntary movements

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10
Q

What are sensory (afferent) neurons?

A

Neurons that carry sensory information from the body to the CNS

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11
Q

What are motor (efferent) neurons?

A

Neurons that carry commands from the CNS to the muscles

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12
Q

How is sensory information encoded for transmission in sensory pathways?

A

It is converted into electrical signals called action potentials

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13
Q

How are commands encoded for transmission in motor pathways?

A

They are also converted into action potentials

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14
Q

What is the role of sensory pathways in reflex actions?

A

They carry sensory information to the spinal cord, triggering an automatic motor response

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15
Q

What is the role of motor pathways in reflex actions?

A

They carry commands from the spinal cord to the muscles involved in the reflex

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16
Q

What is a sensory receptor?

A

A cell or organ that detects a specific type of stimulus, such as light, sound, or temperature

17
Q

What is a motor end plate?

A

The point where a motor neuron stimulates a muscle fiber

18
Q

What is the role of sensory pathways in the perception of the world around us?

A

They transmit sensory information to the CNS, where it is interpreted and perceived

19
Q

What is the role of motor pathways in interacting with the world around us?

A

They carry commands from the CNS to our muscles, allowing us to move and manipulate objects