anatomy

White matters refers to myelinated fibers in the

CNS

The Schwann cell forms a myelin sheath around the:

axon

Which of the nerve plexuses serves the shoulder and arm:

brachial

The term central nervous system refers to the ________.

brain and spinal cord

the midbrain, pons, medulla oblongata are housed in the

brain stem

Sally has a brain injury; she knows what she wants to say but can't vocalize the words. The part of her brain that deals with the ability to speak is the:

brocas area

Loss of muscle coordination results from damage to the:

cerebellum

which of the following brain dysfunctions is also known as a stroke

cerebrovascular accident

which one of the following is the correct sequence of nerves that exit the spinal cord, going from superior to inferior

cervical spinal nerves, thoracic spinal nerves, lumbar spinal nerves, sacral spinal nerves

the major role of the interneuron is to

connect motor and sensory neurons in their pathways

the neuron process that normally receive stimuli are called

dendrites

muscles and glands are

effectors

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

frontal lobe

a stroke in the primary motor area has caused don to lose control over his skeletal muscles on the right side of the body. What lobe of his brain was damaged?

frontal lobe

Collections of nerve cell bodies outside the central nervous system are called ________.

ganglia

the elevated ridges of tissue on the surface of the cerebal hemispheres are known as while the grooves are termed

gyri; sulci

control of temperature, endocrine activity, metabolism, and thirst are functions associated with the

hypothalamus

the pituitary gland is most closely associated with the

hypothalamus

the two major functional properties of neurons are

irritability and conductivity

the vital centers for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the

medulla oblogondata

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

multipolar

the substance that is released at axonal endings to propagate a nervous impulse is called

neurotransmitter

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

oligodendrocytes

During the resting state, a neuron is:

polarized with sodium ions outside the cell and potassium ions inside the cell

which of the following is the correct sequence in a typical reflex arc

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

Which type of reflex involves skeletal muscles?

somatic

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

somatic sensory

the gap between two communicating neurons is termed

synaptic cleft