Spinal Cord Diagram

The diagram 2 shows the impulse pathway of an action.

Receptor -->Spinal cord --> Effector

Which of the following actions will pass through the same impulse pathway?

• Breathing

• Thinking

• Knee-jerk reaction

• Walking

Which part of the spinal cord is responsible for transmitting sensory information to the brain?

• Dorsal root

• Ventral root

• Lateral horn

• Central canal

What is the primary function of the spinal cord in the human body?

• To produce red blood cells

• To transmit nerve signals between the brain and the body

• To store calcium

• To regulate body temperature

Which structure in the spinal cord contains cerebrospinal fluid?

• Dorsal root

• Ventral root

• Central canal

• Gray matter

In a spinal cord cross-section, which area contains the cell bodies of motor neurons?

• Dorsal horn

• Ventral horn

• Lateral horn

• Central canal

What type of neurons are found in the dorsal root ganglion of the spinal cord?

• Motor neurons

• Sensory neurons

• Interneurons

• Glial cells

Which of the following is a protective layer surrounding the spinal cord?

• Myelin sheath

• Meninges

• Axon

• Dendrite

What is the role of the myelin sheath in the spinal cord?

• To protect the spinal cord from injury

• To insulate nerve fibers and increase signal speed

• To produce neurotransmitters

• To connect neurons to blood vessels

Which part of the spinal cord is involved in reflex actions?

• Cerebral cortex

• Medulla oblongata

• Spinal reflex arc

• Thalamus

What is the consequence of damage to the spinal cord?

• Loss of vision

• Paralysis

• Hearing loss

• Memory loss