Exam 14: Nervous System: Spinal Cord and Spinal Nerves

Which spinal nerves contribute to the brachial plexus?

What is the correct order for the parts of the spinal cord, from superior to inferior?

The second thoracic spinal nerve exits the spinal column through the

The posterior horns of the spinal cord contain

A conduction pathway consists of a

The embryonic feature that gives rise to the anterior and lateral horns of gray matter is the ________ plate.

The most delicate of the meninges consists of elastic and collagen fibers and is known as the

Which of these spinal nerve counts is incorrect?

Neurons in the primary somatosensory cortex receive input from tertiary neurons that have their cell bodies residing in the thalamus.

The large section of spinal white matter that is found between the posterior gray horns is known as the posterior

Usually, awareness of the stimulus occurs before a reflex action has been initiated.

This structure contains unmyelinated axons and serves as a communication route between the right and left sides of the gray matter in the spinal cord.

Reflexes are described as

The obturator nerve innervates muscles of the lateral thigh.

The spinal cord exhibits some reflexes that do not involve the brain.

A posterior root contains

What is the correct order for the events that occur during a reflex? A: Impulse travels through sensory neuron to the CNS B: A stimulus activates a receptor C: Information is processed by interneurons D: Motor neuron transmits impulse to effector E: Effector responds

In both the anterolateral pathway and the posterior funiculus-medial lemniscal pathway, the axons of the ________ neurons decussate in the CNS.

The alar plate of the embryo develops into the gray commissure of the spinal cord.

When the Achilles tendon is tapped or the bottom of the foot is stroked, the reflexive response is that the foot