Chapter 13 spinal stuff

Babinski sign

Stroking an infants foot on the side of the sole produces a fanning of the toes known as the

Spinal meninges

The specialized protective membrane that surrounds the spinal cord is the

Dermatone

The specific bilateral region of the skin surface monitored by a single pair of spinal nerves is known as a

Dermatome

The specific region of the body surface monitored by a single pair of spinal nerves is known as

Descending Tracts

Axons convey motor commands down into the spinal cord by way of

Acquired Reflexes

Complex, learned motor patterns are called

Innate reflexes

Connections that form between neurons during development produce

Gamma efferents

Contraction of the myofibrils within intrafusal muscle occurs when impulses arrive over

Nerve Plexus

A complex interwoven network of nerves is called a

Crpssed extensor reflex

A motor response that occurs on the side opposite the stimulus is referred to as a

Polysynaptic reflex

A reflex arc that has at least one interneuron between the sensory neuron is a

Receptor

A specialized cell that monitors conditions in the body or the external environment is called a

Reinforcement

Elevated facilitation leading to an enhancement of spinal reflexes is called

Ganglia

In the peripheral nervous system (PNS), neuron cell bodies are located in

Reflexes

Programmed, automatic, involuntary motor responses and motor patterns are called

Somatic reflexes

Provide a mechanism for involuntary control of the muscular system

Cranial reflex

Reflexes processed in the brain are called

Gray Comissures

The areas of the spinal cord where axons cross from one side of the cord to the other are the

Pia Mater

The blood vessels servicing the spinal cord run along the surface of the

Dorsal ramus

The branch of each spinal nerve that provides sensory and motor innervation to the skin and muscles of the back is the

Nuclei

The cell bodies of neurons in the gray matter of the spinal cord form groups called

Motor Nuclei

The cell bodies of neurons that receive and relay information from peripheral receptors are called

Sensory nuclei

The cell bodies of neurons that receive and relay information from peripheral receptors are called

Perineurium

The connective tissue partition that separates adjacent bundles of nerve fibers in a peripheral nerve is referred to as the

Cauda Equina

The nerves that collectively radiate from the conus medullaris are known as the

Dura mater

The outermost covering of the spinal cord is the

Epineurium

The outermost layer of a spinal nerve is called the

Brachial plexus

The radial, median, and ulnar nerves originate in the

Filum terminale

The supportive fibrous strand of the pia matter is the

Conus medullaris

The terminal portion of the spinal cord is called the

Columns

The white matter of the spinal cord is divided into regions called

Flexor reflex

The withdrawal reflex affecting the muscles of a limb is a

Convergence

When two neuronal pools synapse on the same motor neurons, the process is called