term 2 week 6

Question 1

difference between the nervous system and the endocrine system (response time)

Answer 1

nervous system - faster to respond to stimuli

endocrine system - response is slower

Question 2

difference between the nervous system and the endocrine system (action time)

Answer 2

nervous system- action lasts for short time

endocrine system- action lasts longer

Question 3

difference between the nervous system and the endocrine system (target)

Answer 3

nervous system- specific targets

endocrine system- multiple targets

Question 4

difference between the nervous system and the endocrine system (involved)

Answer 4

nervous systems- neurotransmitters are involved

endocrine system- hormones are involved

Question 5

functions of the nervous system

Answer 5

• monitors the body’s internal and external environments
• integrates sensory information
• coordinates voluntary and involuntary responses

Question 6

nervous systems are formed by specific nerves cells which is called

Answer 6

neuron

Question 7

describe the anatomical divisions of the nervous system

Answer 7

neuron, neuroglia (cellular level)

nervous tissues (tissues)

brain, spinal cord. (organs)

nervous system

human

Question 8

The nervous system comprises of two groups, which are?

Answer 8

Central nervous system and peripheral nervous system

Question 9

What are the central nervous system made up of

Answer 9

brain and spinal cord

Question 10

functions of the central nervous system

Answer 10

integrates and coordinates input and output

Question 11

peripheral nervous system is made up of

Answer 11

all the neural tissues outside of the CNS. It is the connection between the CNS and the organs

Question 12

What is the difference between sensory (afferent) division and motor (efferent) division of the PNS

Answer 12

the sensory division of the PNS brings information to the CNS from receptors in peripheral tissues and organs but the motor division of the PNS carries motor commands from the CNS to peripheral tissues and systems

Question 13

the motor (
efferent) division includes \_\_\_\_\_\_\_ nervous system and \_\_\_\_\_\_\_\_\_ nervous system

Answer 13

somatic, autonomic

Question 14

what is sotamic nervous system?

Answer 14

SNS is also called the voluntary nervous system because it allows us to consciously control our movement (skeletal muscle)

Question 15

what is the autonomic nervous system?

Answer 15

ANS is also called the involuntary nervous system because it automatically regulates activities (smooth muscles, glands)

Question 16

nervous tissue is made up of two types of cells

Answer 16

neurons and neuroglia

Question 17

neurons is the _____ unit and what is its function?

Answer 17

basic , cells that communicate and carry information by transmitting a nerve impulse

Question 18

functions of neuroglia

Answer 18

protects, supports and regulate the environment around the neurons

Question 19

short projections of a neuron

Answer 19

dendrites

Question 20

long projection of a neuron

Answer 20

axon

Question 21

functions of dendrites

Answer 21

receive signals

Question 22

functions of the axon hillock

Answer 22

where electrical signal begins

Question 23

axons

Answer 23

carry signals to the next cell

Question 24

axon terminals

Answer 24

bulb-shaped endings that form a synapse with the next cell

Question 25

neuron have a _______ ability to _____ when damaged or destroyed

Answer 25

limited ability to regenerate

Question 26

what is a myelin sheath?

Answer 26

a lipid covering on long axons

Question 27

what is the function of the myelin sheath?

Answer 27

acts to increase the speed of nerve impulse conduction, insulation and regeneration of the neurons (mainly in the PNS)

Question 28

what are nodes of ranvier ?

Answer 28

gaps between the myelination on the axons

Question 29

structurally neurons can be classified into 3 different groups which are ?

Answer 29

1) multipolar neuron
2) unipolar neuron
3) bipolar neuron

Question 30

location of multipolar neurons

Answer 30

most common in the CNS and motor neurons

Question 31

location of unipolar neurons

Answer 31

found in the PNS as sensory nerves

Question 32

location of bipolar neurons

Answer 32

found in special sensory organs

Question 33

what are afferent neurons

Answer 33

receive information from sensory receptors

Question 34

what are efferent neurons

Answer 34

carry information to peripheral targets called effectors

Question 35

what is an interneuron

Answer 35

receives information in the CNS and sends it to a motor neuron

Question 36

what is demylination

Answer 36

a condition that results in damage to the protective covering (myelin sheath) that surrounds neurons. The nerve impulses slow or even stop, causing neurological problems

Question 37

In the nervous system, message moves from one location to another in the form of ______________ along the ______ of a ________ - electrical

Answer 37

action potential (nerve impulse) along the axon of a neuron

Question 38

Transferring of information from one cell to another takes place at

Answer 38

synapse - chemical

Question 39

Plasma membrane of a neuron is ________ permeable

Answer 39

selectively

Question 40

An undisturbed cell has a __________________

Answer 40

resting membrane potential

Question 41

The most abundant class of neuron in the central nervous system is

Answer 41

multipolar neuron

Question 42

Neurons that have one axon and one dendrite, with the cell body in between, are called

Answer 42

bipolar neuron