Anatomy of the Spinal Cord and Peripheral Nervous System

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What is the function of the grey matter in the spinal cord?

It connects the Central Nervous System with the body’s external and internal environments

It contains the cells of the motor neurons which supply the muscles and glands (correct)

It carries motor information to the body

It forms the sensory and motor pathways to and from the brain

What do the axons of the peripheral nervous system primarily carry?

Connective tissue

Sensory information and motor commands (correct)

Nuclei in the brain

Motor information to the body

Which part of the nervous system connects the Central Nervous System with the body’s external and internal environments?

Peripheral nerves

Spinal nerves

The Peripheral Nervous System (correct)

Cranial nerves

What is the main communication pathway between the brain and the body?

Spinal nerves Signup and view all the answers

Which plexus supplies the entire upper limb?

Brachial plexus Signup and view all the answers

What type of reflex is initiated by the stretching of a skeletal muscle and results in its reflex contraction?

Stretch reflex Signup and view all the answers

How many pairs of spinal nerves are there?

31 Signup and view all the answers

Which division of the peripheral nervous system transmits information from the periphery to the central nervous system?

Afferent division Signup and view all the answers

What is the function of the ventral branches of L1- L4 interlinking to form the lumbar plexus?

Supplying the thigh and skin of the buttocks and genitals Signup and view all the answers

What does the central nervous system primarily do?

Process and integrate information Signup and view all the answers

Anatomy of the Spinal Cord and Peripheral Nervous System

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Questions and Answers

What is the function of the grey matter in the spinal cord?

What do the axons of the peripheral nervous system primarily carry?

Which part of the nervous system connects the Central Nervous System with the body’s external and internal environments?

What is the main communication pathway between the brain and the body?

Which plexus supplies the entire upper limb?

What type of reflex is initiated by the stretching of a skeletal muscle and results in its reflex contraction?

How many pairs of spinal nerves are there?

Which division of the peripheral nervous system transmits information from the periphery to the central nervous system?

What is the function of the ventral branches of L1- L4 interlinking to form the lumbar plexus?

What does the central nervous system primarily do?

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