A & P II Essentials - Nervous System

Central

The ____________ nervous system consist of the brain and spinal cord:

Peripheral

The ___________ nervous system consist of the cranial nerves and spinal nerves:

Neuroglia

The nerve tissues consists of neurons, __________, and Schwann cells:

CNS

Neuron cell bodies are in/close to the ________ :

Dendrites

Peripheral nerves are made of axons and ______________:

Schwann cells

Which of the following best describes their membranes form the myelin sheath of peripheral neurons:

Oligodendrocytes

______________ forms the myelin sheath in the CNS:

Astrocytes

______________ forms the blood-brain barrier:

Sensory

Sensory nerves are made of _____________ neurons:

Motor

Motor nerves are made of ____________ neurons:

Mixed

____________nerves are made of both sensory and motor neurons:

Nerve tract

Which of the following best describes a nerve within the CNS:

Saltatory conduction

Which of the following best describes myelinated fivers; only the nodes of Ranvier depolarize and repolarize:

Ascending tracts

Which of the following best describes white matter; carry sensory impulses to the brain:

Descending tracts

Which of the following carry motor impulses away from the brain:

Central canal

Which of the following opens into the ventricles of the brain; contains cerebrospinal fluid:

Reflex

Which of the following best describes an involuntary response to a stimulus:

Ventricles

Which of the following consists of four cavities, two lateral and the third and fourth ventricles:

Pons

Which of the following works with the medulla:

Midbrain

Which of the following extends from the pons to the hypothalamus:

Cerebellum

Which of the following is posterior to the pons and medulla; its' functions are concerned with voluntary movement:

Hypothalamus

Which of the following is above the pituitary gland and below the thalamus:

Thalamus

Which of the following is below the cerebrum and above the hypothalamus:

Pia

The three meningeal layers include the Dura mater, arachnoid membrane and the _________ mater:

Equilibrium

The special senses that have receptors in the head are vision, hearing, _____________, taste and smell: