(Midterms) Nervous System

Front 1

Central nervous system

Back 1

this specific nervous system consists of the encephalon or brain, and the medulla spinalis or spinal cord

Front 2

Other name for spinal cord

Back 2

medulla spinalis

Front 3

Other name for brain

Back 3

encephalon

Front 4

Peripheral nervous system

Back 4

This specific nervous system consists of a series of nerves having two groups, cerebrospinal and sympathetic

Front 5

Enteric Nervous system

Back 5

A subsystem of the PNS to function independently ,from the rest of the nervous system through the Vagus nerve,in controlling the gastrointestinal system

Front 6

Axon Terminals

Back 6

These are the transmitters of the neuron

Front 7

Dendrites

Back 7

These are the receivers of the neuron

Front 8

Myelin sheath

Back 8

Part of the neuron

Insulating fatty layer that speeds up transmission

Front 9

Neuroglia

Back 9

Supporting cell only found in the brain and medulla spinalis

Front 10

Gray matter

Back 10

Substance/Matter found in the outer portion of the brain

Front 11

White matter

Back 11

Substance/Matter found in the inner portion of the brain

Front 12

Unipolar cells

Back 12

kind of nervous cell that divides in a T shaped manner

Front 13

Bipolar cells

Back 13

kind of nervous cell found in the spinal ganglia when the cells are in embryonic condition

Front 14

Mutipolar cells

Back 14

kind of nervous cell which are pyramidal or stellate in shape and characterized by their large size

Front 15

Medullated fibers (white fibers)

Back 15

kind of fiber that forms the white part of the brain and medulla spinalis

Front 16

Gray or gelatinous nerve fibers (fibers of remak)

Back 16

Kind of fiber that is found in the sympathetic system and some of the cerebrospinal

Front 17

Axis cylinder

Back 17

essential part of the nerve fiber and is always present

Front 18

Nodes of ranvier

Back 18

Medullary sheath interruptions at intervals

Front 19

Fromman's lines

Back 19

transverse lines beyond the nodes

Front 20

Wallerian degeneration

Back 20

is a process that results when a nerve fiber is cut or crushed, in which the part of the axon separated from the neuron's cell body degenerates distal to the injury. is a process that results when a nerve fiber is cut or crushed, in which the part of the axon separated from the neuron's cell body degenerates distal to the injury.

Front 21

Spinal cord

Back 21

Elongated nearly cylindrical part of the central nervous system

Front 22

Dura mater

Back 22

Meninges

The strongoutermost fibrous membrane of the brain

Front 23

Arachnoid

Back 23

Meninges

Middle membrane

Front 24

Subarachnoid cavity

Back 24

Meninges

Separates the Arachnoid and Pia mater,

cerebrospinal fluid

Front 25

Pia mater

Back 25

Meninges

is thinner and more delicate than the dura mater, and is in direct contact with the neural tissue of the brain and spinal cord.

Front 26

Number of pairs of spinal nerves

Back 26

31 pairs

Front 27

Number of cervical pairs

Back 27

8

Front 28

Number of thoracic pairs

Back 28

12

Front 29

Number of lumbar pairs

Back 29

5

Front 30

Number of Sacral pairs

Back 30

5

Front 31

Number of Coccygeal pairs

Back 31

1

Front 32

Hindbrain

Back 32

forms the medulla oblongata, pons and cerebellum

Front 33

Midbrain

Back 33

forms the cerebral aqueduct (aqueduct of sylvius) which serves as tubular communication between the 3rd and 4th ventricles

Front 34

Forebrain

Back 34

composed of the telencephalon(anterior part) and diencephalon (posterior)

Front 35

Medulla oblongata

Back 35

extends from the lower margin of the pons

Front 36

Pyramid

Back 36

Anterior district of the medulla oblongata

Front 37

Pyramidal decussation

Back 37

Successive bundles of pyramids

Front 38

Olive

Back 38

situated lateral to the pyramid

Front 39

Pons

Back 39

Forepart of the hind brain and front of the cerebellum

Front 40

Cerebellum

Back 40

largest part of the hindbrain and behind the pons and medulla oblongata

Front 41

Cerebral peduncles

Back 41

Two cylindrical masses situated at the base of the brain

Front 42

Thalamus

Back 42

Two large ovoid masses

is a midline symmetrical structure of two halves, within the vertebrate brain,

Front 43

Optic chasm

Back 43

the X-shaped structure formed at the point below the brain where the two optic nerves cross over each other.

Front 44

Cerebral hemispheres

Back 44

Largest part of the brain, especially when viewed from above

Front 45

Falx Cerebri

Back 45

sickle shaped process of dura matter

Front 46

Lateral Cerebral fissure

Back 46

Fissure of sylvius

Front 47

Central sulcus

Back 47

Fissure of rolando

Front 48

Calcarine fissure

Back 48

Fissure on the medial surface of the hemisphere, beginning near the occipital pole running forward

Front 49

Cingulate fissure

Back 49

Fissure on the medial surface of the hemisphere,below the anterior end of the corpus callosum running upward and f

Front 50

Olfactory nerve

Back 50

Cranial nerve that transmits the sense of smell

Front 51

Optic nerve

Back 51

Cranial nerve that transmits the visual information to the brain

Front 52

Oculomotor nerve

Back 52

Cranial nerve that performs most eye movements

Front 53

Trochlear nerve

Back 53

Cranial nerve that innervates the superior oblique muscle and intors the eyeball

Front 54

Trigeminal nerve

Back 54

Cranial nerve that receives sensation from the face and innervates the muscles of mastication

Front 55

Abducens nerve

Back 55

Cranial nerve that innervates the lateral rectus which abducts the eye

Front 56

Facial nerve

Back 56

Cranial nerve that provides innervation to the muscles of facial expression, receives 2/3 the taste

Front 57

Vestibulocochlear nerve

Back 57

Cranial nerve that senses sound

Front 58

Glossopharyngeal

Back 58

Cranial nerve that receives taste from 1/3 of the tongue

Front 59

Vagus nerve

Back 59

Cranial nerve that innervates to most laryngeal and all pharyngeal nerves

Front 60

Accessory nerve

Back 60

Cranial nerve that controls sternocleidomastoid and trapezius muscles

Front 61

Hypoglossal nerve

Back 61

Cranial nerve that provides innervation to the muscles of the tongue, important for swallowing and speech articulation