Histology Nervous Tissue

Front 1

Peripheral nerves

Back 1

conduct impulses from efferent/motor neurons to afferent/sensory neurons of the cns.

Front 2

Somatic nervous system (SNS)

Back 2

parts of the CNS and PNS that provide sesory and motor innervation to all parts of the body expect the viscera, smooth muscle and glands.

Front 3

Autonomic nervous System (ANS)

Back 3

It provides effernt involuntary motor innervation to smooth muscle, the conducting system of the heart and glands. It also provides afferent sensory innervation from the viscera(pain and autonomic reflexes). The ANS has two parts, the sympathetic, and parasympathetic.

Front 4

Purkinje fiber

Back 4

Cardiac conducting cells located with in the conductive system of the heart. The frequency of the depolarization of the fibers controles the rate of cardiac contraction.

Front 5

Somatic afferent fibers

Back 5

Conduct sensations of pain, temperature, touch and pressure from the body surface.

Front 6

Visceral afferent fibers

Back 6

transmit impulses of pain and other sensations from the mucous membranes, glands, and blood vessels.

Front 7

Somatic efferent fibers

Back 7

Send impulses from the CNS or ganglia to the skeletal muscles.

Front 8

Visceral efferent fibers

Back 8

send involentary impulses from the CNS and ganglia to the visceral components (smooth muscle, cardiac conducting fiber "Purkinje fibers", and glands)

Front 9

Interneurons

Back 9

form a communicating and integrating network between the sensory and motor neurons. Approx. 99.9% of all neurons belong to this network.

Front 10

Dendrite

Back 10

are the process receptors that receive stimuli from other neurons or the external environment.

Front 11

Perikaryon

Back 11

The body of a neuron, that contains large amounts of eucromotin in the neucleus and large amounts of ribosomes in the ER, forming nissal bodies and free ribosomes. The body of a neuron has the characteristics fo a protien-producing cell...

Front 12

Nissal Body

Back 12

The nissal body of the neural cell corrispondes to stacks of rER that dyes basophilic.

Front 13

Axons

Back 13

are effector processes that transmit stimuli to other neurons or effector cells.

Front 14

axon hillock

Back 14

This is the area of the neural cell body that is free of nissal bodies, golgi, and free ribosomes. It is the distinguishing factor of where the axon begins.

Front 15

Anterior median Fissure

Back 15

small arrow... this can be a landmark to determine the anterior spinal cord. It is in the white matter