Lecture Exam 3 (Neural Tissue)

Question 1

Neural tissue has 2 cell types

Answer 1

neurons and neuroglia

Question 2

responsible for the transfer and processing of information in the nervous system

Answer 2

neurons (nerve cells)

Question 3

axon of a neuron

Answer 3

nerve fiber

Question 4

nerves are made of bundles of?

Answer 4

neurons

Question 5

each neuron is called a

Answer 5

nerve fiber

Question 6

nerve fiber is made up of mostly?

Answer 6

axon

Question 7

smaller than nerve fiber

Answer 7

neurofibrils and nerurofilaments

Question 8

cell body of neuron

Answer 8

soma

Question 9

receivers of the nerve impulse from surrounding neurons

Answer 9

dendrites

Question 10

a neuron receives information from other neurons primarily at

Answer 10

dendritic spines

Question 11

axon ends at. part of synapse. specialized site where neuron communicates with another chemical messengers

Answer 11

synaptic terminal/terminal button

Question 12

a long cytoplasmic process capable of propagating an action potential (nerve impulse) the larger the diameter the more rapid the impulse will be conducted.

Answer 12

axon

Question 13

one process off of cell body but has two axonal processes. cell body lies to one side. Sensory neurons.

Answer 13

psuedo-unipolar neurons

Question 14

several dendrite processes off of cell body and single axon that may have one or more branches. most common in CNS. Motor neurons

Answer 14

multipolar neurons

Question 15

support neurons

Answer 15

neuroglia cells

Question 16

four types of glial cells in CNS

Answer 16

astrocytes, oligodendrocytes, ependymal cells and microglia

Question 17

maintain blood-brain barrier, largest and most numeral glial cell, satellite cells in PNS, shield neurons from direct contact with other neurons and surrounding interstitial fluid, guide neural development

Answer 17

astrocytes

Question 18

schwann cells in PNS, improve functional performance of neurons by wrapping axons in myelin

Answer 18

oligodendrocytes

Question 19

improves the speed at which an action potential or nerve impulse is conducted along an axon.

Answer 19

myelin

Question 20

lines the ventricles of brain and central canal of spinal cord, cuboid/columnar epithelia and helps move cebro-spinal fluid around CNS, help regulate CFS absorption and secretion

Answer 20

ependymal cells

Question 21

specialized ependymal cells that participate in the secretion of cerebrospinal fluid

Answer 21

choroid plexus

Question 22

acting as roving security force, engulf cellular debris, waste products and pathogens

Answer 22

microglia

Question 23

connective tissues of nerves

Answer 23

epineurium, perineurium, and endoneurium

Question 24

deliver information to CNS. afferent fibers.

Answer 24

sensory neurons

Question 25

transmit information about the outside world and our position within it

Answer 25

somatic sensory neurons

Question 26

transmit information about internal conditions and the status of other organ systems

Answer 26

visceral sensory neurons

Question 27

4 major receptors

Answer 27

nociceptors, thermoreceptors, mechanoreceptors, chemoreceptors.

Question 28

monitor the position and movement of skeletal muscles and joints

Answer 28

proprioreceptors (kinesthestic receptors)

Question 29

detect change in the length of muscle

Answer 29

muscle spindle

Question 30

muscle contraction in response to stretching within the muscle itself

Answer 30

the stretch reflex

Question 31

detects changes in force or tension in a tendon

Answer 31

golgi tendon organ

Question 32

monitor the digestive, respiratory, cardiovascular, urinary, and reproductive systems and provide sensations of deep pressure and pain as well as taste, another special sense

Answer 32

interoceptors

Question 33

multipolar neurons that form efferent fibers. goes from CNS to PNS

Answer 33

motor neurons

Question 34

somatic motor neurons

Answer 34

consciously controlled

Question 35

permits communication between a neuron and another cell type

Answer 35

synapse