neurons

What is the structure of unipolar neurons?

sensory neurons; one very short process which divides into peripheral and central processes, extends from the cell body which compromises the axon; only distal ends of the peripheral processes are dendrites

What is the structure of the synapse?

the junction of 2 neurons "to clasp or join"

What anatomical characteristics determines whether a particular neuron is classified as unipolar, bipolar, or multipolar?

the number of processes attached to the cell body

What is the perineurium?

the sheath of connective tissue surrounding a bundle (fascicle) of nerve fibers within a nerve.

What is the endoneurim?

within a nerve, each fiber is surround by a delicate loose areolar connective tissue sheath; Insulates it from the other neuron processes adjacent to it.

What does Efferent mean?

Motor?

Where are multipolar neurons located in the body?

Multipolar neurons are the most common type of neuron. They are located in the central nervous system (brain and spinal cord) and in autonomic ganglia.

What is the Epineurium?

The epineurium is the outermost layer of dense irregular connective tissue surrounding a peripheral nerve. It usually surrounds multiple nerve fascicles as well as blood vessels which supply the nerve.

What is a motor neuron?

a nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.

What are interneurons?

a neuron that transmits impulses between other neurons, especially as part of a reflex arc.

What is the structure of multipolar neurons?

a neuron with several processes, usually an axon and three or more dendrites.

What is the structure of bipolar neurons?

one axons and one dendrite fused

Where are unipolar neurons located in the body?

Unipolar neurons are sensory neurons with cell bodies in spinal and cranial nerve ganglia.

Where are bipolar neurons located in the body?

Bipolar neurons are relatively rare. They are sensory neurons found in olfactory epithelium and the retina of the eye.

What does the term tract mean when dealing with neurons and the spinal cord?

Its a group of axon in the Central nervous system

What does the term Nerve mean when dealing with Neurons and the spinal cord?

Its a group of axons in the peripheral nervous system

What does the term ganglia mean when dealing with neurons and the spinal cord

Its a group of cell bodies in the Peripheral nervous system

What does the term nuclei mean when dealing with neurons and the spinal cord?

Its a group of cell bodies in the central nervous system

What does Afferent mean?

Sensory

What is a sensory neuron?

Sensory neurons are nerve cells that transmit sensory information (sight, sound, feeling, etc.).

How are neurons classified by function?

They are either sensory (Afferent), Motor (Efferent), or Interneurons (association)

What are the classifications based on structure of neurons?

They are either unipolar, bipolar, multipolar

What is the function of axons?

conduct impulses away from the cell body

What are the functions of dendrites?

conduct impulses towards the cell body