The gaps between Schwann cells found at regular intervals in peripheral system neurons are called _____

Nodes of Ranvier

The four major parts of the brain are the cerebrum, the diencephalon, the brain stem, and the _____

Cerebellum

The brain dysfunction where blood suppy to a region (or regions) of the brain is blocked and vital brain tissue dies, as by a blood clot or a ruptured blood vessel, is called ___

A stroke

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ____

Meninges

The large fiber tract that allows communication between the two cerebral hemispheres is ___

Corpus Callosum

Progressive degenerative disease that results in dementia associated with a shortage of acetylochline and structural changes in brain areas involving cognition and memory is?

Alzheimers

The term central nervous system refers to the ___

Brain and spinal cord

The neuron processes that normally revive incoming stimuli are called ____

dendrites

A neuron with a cell body located in the CNS whose primary function is connecting other neurons is called a(n) ____

Association neuron

The point at which an impulse from one nerve cell is communicated to another nerve cell is the ____

synapse

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

a neurotransmitter

The correct sequence of a typical reflex arc is ____

Receptor, afferent neuron, interrogation center, efferent neuron, effector

Muscles and glands are ___

effectors

The three major parts of the brainstem are ___

Midbrain, pons, medulla oblongata

A shallow groove located on the surface of the cerebral cortex is called a ____

Sulci

The single, deep groove seperating the two cerebral hemispheres is the ____

longitudinal fissure

Elevated ridges located on the surface of the cerebral hemisphere are called ____

Gyri

If the specialized area of the cerebral hemisphere corresponding to Borca's area is damaged, what is the result?

Motor control of the speech muscles is lost

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

hypothalamus

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

medulla oblongota

The hypothalamus is the ___ of the body because ___

Is the thermostat of the body because it regulates body temperature

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

dura mater, arachnoid mater, pia mater

The subarachnoid space lies directly between the ____

arachnoid mater and pia mater

The cerebrospinal fuid ___

is continually formed, mostly by the chroid plexuses

The blood-brain barrier is effective against the passage of ___

metebolic waste

What is an example of a traumatic brain injury?

cerebral edema

The spinal cord has gray matter on the ___

inside, white matter on the outside, and ventral motor root

What 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

What is the correct sequence in connective tissue sheaths, going from outermost to innermost layer?

epineurium, perineurium, endoneurium

Afferent nerves are called ____ , and motor nerves are called ____ ?

sensory nerves; efferent nerves

The sympathetic and parasympathetic nervous systems are subdivisions of the ___

autonomic nervous system

preparing the body for "flight or flight" response during threatening situations is the role of the ____

sympathetic nervous system

What is not a result of parasympathetic stimulation?

dialation of the pupils

Only ___ muscle cells are composed of branching chains of cells

cardiac

Skeletal muscle is often attached to bone by strong, cordlike,cstructures called ____

tendons

The gap between the motor neuron and the muscle fiber it supplies at the neuromuscular junction is called the ___

synapse

The sliding filament theory involves sliding of the ____ filament during skeletal muscle contraction as each cross bridge attaches and detaches several times.

actin

The only energy source that can be used to directly power muscle activity is ___

ATP

A smooth, sustained contraction is called ____

tetanus

What function does a calcium ions preform during skeletal muscle contraction?

expose myosin binding sites on the actin

The movement that is commonly seen in a ball-n-socket joint, that includes a combination of flexion, extension, abduction, and adduction is called ____

circumduction

The end of the musclethat is attached to the relatively more moveable bone and moves when a skeletal muscle contacts is called the ____

insertion

What muscle tissue has involuntary regulation of contraction?

Cardiac and smooth muscle

The muscle tissue type that consists of single, very long, cylindrical, multinucleate cells with very obvious striation is ___

Skeletal muscle

What connective tissue sheaths surrounds an individual skeletal muscle cell?

endomysium

What is not a function of the muscular system?

hematopsiesis

A sacromere is ___

The contractile unit between two Z lines

What is composed of myosin protein?

Thick filaments

The mechanical force of contraction is generated by ___

A sliding of thin filaments past thick ones

Acetylcholine is ___

A source of energy for muscle contraction