A&P: Chapter 7 Part 1

The sympathetic and parasympathetic nervous systems are subdivisions of the:

autonomic nervous system

The Schwann cell forms a myelin sheath around the:

axon

The term central nervous system refers to the:

brain and spinal cord

The major role of the interneuron is to:

connect motor and sensory neurons in their pathways

Which of the following effects is characteristic of the parasympathetic nervous system:

decreases heart rate

the neuron processes that normally receive incoming stimuli are called:

dendrites

Which on of the following represents the correct sequence from outermost to innermost layers of the meninges:

dura mater, arachnoid mater, pia mater

Muscles and glands are:

effectors

Bipolar neurons are commonly:

found in the eye and nose

Which lobe contains the primary motor area and enables voluntary control of skeletal muscle movements:

frontal lobe

The elevated ridges of tissue on the surface of the cerebral hemispheres are known as _____ while the shallow grooves are termed _____.

gyri; sulci

the two major functional properties of neurons are:

irritability and conductivity

the blood-brain barrier is effective against the passage of:

metabolic waste such as urea

Neurons with several processes branching off the cell body, such as motor neurons and inter-neurons, are structurally classified as:

multipolar

Impulse conduction is faster in neurons that are:

myelinated

Which of these neuroglial cells forms the myelin sheath in the central nervous system:

oligodendrocytes

Which of the following is the correct sequence in a typical reflex arc:

receptor, afferent neuron, integration center, efferent neuron, effector

Fibers that carry information from the skin, joints, and skeletal muscles to the central nervous system are:

sensory

The function of the olfactory nerve concerns:

smell

Preparing the body for the "flight-or-flight" response during threatening situations is the role of the:

sympathetic nervous system