Nervous System Faith Gallardo P.7

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Major divisions and subdivisions of the nervous system

neurons

Tissues

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Classification of neurons

Cell body

Classification of neurons

Olfactory I

Cranial nerve

Major parts and functions of the brain

Cerbrum

Frontal lobe

Temporal lobe

Occipital lobe

Parietal lobe

Cerabral Cortex is divided into sensory, motor and association areas

Brain

Largest most complex portion of the nervous system

Cerebellum coordinates muscular activity

Brainstem

Spinal cord

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Axon

Dendrites

Sensory receptor

Sensory input

Brain and Spinal cord

integration

motor output

effector

CNS

PNS

nerve cells

neurogilal cells

CNS

astrocytes

microglial cells

ependymal cells

oligodendrocytes

PNS

satellite cells

Schwann cells

neuroglia

Axons/Fibers

Connective tissue coverings

endoneurium

The axons are bundled together into groups called fascicles

perineurium.

CNS

Brain

Spnial cord

PNS

The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

sensory (afferent)

motor (efferent).

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small axons and psuedounipolar structure

Motor nerves – larger axons and multipolar structure.

Nervous tissue is the main part of the nervous system the brain, spinal cord, and nerves. These control the body functions. It is made up of neurons, which transmit impulses, and the neuroglia cells, which help the propagation of the nerve impulse as well as provide food to the neuron.

the connective-tissue sheath that surrounds a bundle of nerve fibers.

furnish support and protection for the delicate cells and allow them to withstand the forces of contraction

Endoneurium is the intrafascicular connective tissue. It is composed of several nerve fibers making up a primary fascicle.

a bundle of structures, such as nerve or muscle fibers or conducting vessels in plants.

central nervous system.

The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions.

Schwann cell, also called neurilemma cell, any of the cells in the peripheral nervous system that produce the myelin sheath around neuronal axons.

a stem cell that lies adjacent to a skeletal muscle fiber and plays a role in muscle growth, repair, and regeneration.

A type of cell that receives and sends messages from the body to the brain and back to the body.

the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between

Any of the cells that hold nerve cells in place and help them work the way they should.

The types of neuroglia include oligodendrocytes, astrocytes, microglia, and ependymal cells.

is a long, slender projection of a nerve cell

Effectors are parts of the body - such as muscles and glands - that produce a response to a detected stimulus.

impulses generated and transmitted by them, cause muscle fibers or pigment cells to contract or glands to secret

The spinal cord and the brain make up the central nervous system (CNS).

Stimuli that are received by sensory structures are communicated to the nervous system where that information is processed

when the body gathers information or data, by way of neurons, glia and synapses

Sensory receptors are dendrites of sensory neurons specialized for receiving specific kinds of stimuli

the spherical part of the neuron that contains the nucleus and holds all of the general parts of the cell.

a usually long and single nerve-cell process that usually conducts impulses away from the cell body

designed to receive communications from other cells. They resemble a tree-like structure, forming projections that become stimulated by other neurons

the cells that make up the brain and the nervous system

spinal cord

medina nerve

cranial nerve

radical nerve

Cerebellum

Thoratic nerves

Lumbar nerves

Sacral nerves

Muscular nerve

Saphenous nerve

Peroneal nerve

Spinal nerves

Oculomotor III

Trochlear IV

Abducens VI

Vestibulocochlear VIII

Hypoglossal XII

Accessory XI

Optic II

Trigeminal V

Facial VII

Vagus X

Sensory receptor

sensory neuron

integration center

Motor neuron

effector target

Reflex arc major parts

Compare & contrast the autonomic nervous system

The autonomic nervous system controls cardiac and smooth muscle as well as the glandular tissue. . The somatic nervous system transmits sensory and motor signals to and form the central nervous system.

A nerve impluse is a sudden reversal of the electrical gradient across the plasa membrane of a resting neuron.

Action potential & the Nerve Impulse

largest terminal branch of the femoral nerve

thin pieces of flesh that form the nerve or muscles in your body

The main nerve of the front of the forearm

pairs of nerves that connect your brain to different parts of your head,neck and trunk

the motor nerve to the serratus anterior muscle

supplies the posterior portion of the upper limb

Branch of the sciatic nerve

Part of the brian located in the back of your brain

five spinal nerves

any of the spinal nerves of the sacral region

processing auditory information and with the encoding of memory

voluntary movement expressive language

visual perception,including colour form and motion

sensory perception and integration

Made up of the brian and spinal cord

parts of the nervous system outside the brain and spinal cord

The eyes,ears,nose,mouth

the nerve cells that are activated by sensory input from the environment

Directly control all of our muscle movements

To a stimulus and effects some change

Sense of smell

enables movement in the eyes superior muscle

sixth cranial nerve responsible for motor function of the eye

12th cranial nerve underside of your tongue

7th cranial nerve controls the muscles of facial expression

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Vision

10th cranial nerve,longest and most complex, gives off cardiac eesophageal pulomonary branches.