Anatomy Lab 3 Test

Front 1

Nervous and endocrine maintain homeostasis

Back 1

Nerve impulses are sent to the brain and more the control center of the hypothalamus which controls the pituitary gland that regulates the endocrine system.

Front 2

Organization of the nervous system

Back 2

Front 3

ciliated ependymal cells

Back 3

move cerebrous spinal fluid around to keep it homogenous

secrete cerebro spinal fluid

Front 4

astrocytes

Back 4

form the blood brain barrier

Front 5

microglia

Back 5

they do phagocytosis to fight infection

Front 6

oligodendrocytes

Back 6

bind the CNS neurons together and insulate the axons

Front 7

schwann cells

Back 7

insulate PNS axons

Front 8

Neuroglia

Back 8

Front 9

Multipolar Nuerons

Back 9

three or more cell bodies

one axon and many dendrites

Front 10

Mylein sheath formed

Back 10

individual cells extend their plasma membranes around the axons of neurons in a spiral fashion. In the central nervous system, these are called oligodendroglial cells, while in the peripheral nervous system, they are called Schwann cells. They insulate the axon

Front 11

Functions of neuron

Back 11

receive signals

integrate incoming signals

communicate signals

Front 12

Stuctural classification of neurons

Front 13

multipolar neuron function

Back 13

skeletal muscle movement

Front 14

bipolar neuron function

Back 14

specialized sensory senses

Front 15

unipolar neuron function

Back 15

pain, touch, temp sensory neuron

Front 16

Grey matter

Back 16

contains cell bodies, where all synapses occur

Front 17

white matter

Back 17

made of axons,

Front 18

synapse

Back 18

point at which a nervous impulse passes from one neuron to another

Front 19

neuromuscular junction

Back 19

a synapse between a motor neuron and a skeletal muscle

Front 20

neuroglandular junction

Back 20

between neuron and gland

Front 21

Dorsal root

Back 21

is one of two "roots" which emerge from the spinal cord. It emerges directly from the spinal cord, and travels to the dorsal root ganglion. Nerve fibres with the ventral root then combine to form a spinal nerve. The dorsal root transmits sensory information, forming the afferentsensory root of a spinal nerve.

Front 22

dorsal root ganglion

Back 22

is a cluster of nerve cell bodies (a ganglion) in a posterior root of a spinal nerve. The dorsal root ganglia contain the cell bodies of sensory neurons (afferent).

Front 23

ventral root

Back 23

the ventral root or anterior root is the efferent motor root of a spinal nerve.

Front 24

ascending and descending tracts

Back 24

Ascending tracts: Sensory

Descending tracts: Motor

Front 25

white matter columns function

Back 25

subdivided into dorsal (or posterior), lateral, and ventral (or anterior) columns,The dorsal columns carry ascending sensory information from somatic mechanoreceptors. The ventral columns carry both ascending information about pain and temperature, and descending motor information.

Front 26

Ventral Horn

Back 26

Description: part of gray matter, contains somatic motor nucleifunction: transmission of neural signals

Front 27

Anterior Median Fissure

Back 27

the more open ventral fissure of white matter in spinal cord

function: divide spinal cord 1/2l cord in half

Front 28

Central Canal

Back 28

Description: middle hole in gray matterfunction: passage way for cerebrospinal fluid (CSF)

Front 29

gray commissure

Back 29

Description: middle portion of gray matterfunction: communicates between left and right side of body

Front 30

Lateral Horn

Back 30

Description: lateral side of gray matter on spinal cordFunction: transmission of neural signals

Front 31

Dorsal Horn

Back 31

Description: posterior part of gray matterFunction: transmission of neural signals

Front 32

Posterior Median Sulcus

Back 32

Description: a groove in the posterior side of spinal cordfunction: divide spinal cord in half

Front 33

Ventral Root

Back 33

Description: connected to ventral horns on spinal cord Function: axons of motor neurons send message out to effectors

Front 34

Dura Mater

Back 34

Description: Part of the spinal meninges, outermost covering of spinal cordFunction: keeping in cerebrospinal fluid

Front 35

Arachnoid mater

Back 35

Description: part of the spinal meninges, middle meningeal layerFunction: protective membrane that covers the brain and spinal cord

Front 36

pia mater

Back 36

Description: part of the spinal meninges, intermost layer of menigealFunction: protective membrane that covers the brain and spinal cord

Front 37

cervical enlargement

Back 37

(yellow) description: spindle-shaped swelling of the spinal cordfunction: provide room for dorsal and ventral roots

Front 38

lumbar enlargement

Back 38

(blue)description: spindle-shaped swelling of the spinal cordfunction: provide room for dorsal and ventral roots

Front 39

cauda equina

Back 39

description: collection of spinal nerves located at the inferior end of vertebral canalfunction: bundle of nerves that send messages throughout the body

Front 40

Nerve coverings

Front 41

Brain

Front 42

circulation and function of cerebrospinal fluid

Back 42

Function: protection, buoyancy, chemical stability, waste removal

Circulation: produced in choroid plexus, ventricles, the subarachnoid space, reabsorbed in sagittal sinus

Front 43

For a sensation to occur

Back 43

stimulus, receptor, the impulse conducted, a specific part of the brain translates into a sensation