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BIO 301 Lec > Lab Week 8 (exam 3) > Flashcards

Lab Week 8 (exam 3) Flashcards

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Biology 101 flashcards
1
Q

What are the 2 major parts of the nervous system?

A

1) Central Nervous System (CNS)

2) Peripheral Nervous System (PNS)

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2
Q

What organs does the CNS consist of?

A

Brain and spinal cord

Bony protection

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3
Q

What do the nerves of the PNS do?

A

Nerves that extend out from CNS (from bony protection)

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4
Q

Is the CNS and PNS division natural or unnatural and why?

A

Unnatural

More for convenience

Doesn’t represent 2 fundamentally different things

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5
Q

What are the nerves of the PNS?

A

1) sensory nerves

2) motor nerves

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6
Q

What do sensory nerves do?

A

Carry info with receptors sending info to CNS

Go into CNS

Afferent- going into something

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7
Q

What are motor nerves?

A

Outgoing- efferent

Command that cause certain things to happen in the body

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8
Q

What does somatic mean?

A

Skin and musculature

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9
Q

What does visceral mean?

A

Internal organs

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10
Q

What is somatic sensory?

A

Senses you have in skin (touch, pain, hear, cold)

Some muscles have this

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11
Q

What is visceral sensory mean?

A

Info from internal organs

You’re unaware of it

Some conscious awareness
Ex: stomach pain

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12
Q

What does somatic motor mean?

A

Nerves control movement of body

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13
Q

What is visceral movement or autonomic nervous system (ANS)?

A

Outgoing commands of all organs in the body

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14
Q

What are the 2 parts of the autonomic nervous system (ANS) and explain

A

1) sympathetic-
- flight and fight responses (prepare for action)

2) parasympathetic-
- rest and digest (slowing organs down)

Every organ has both

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15
Q

What are the nerve tissues?

A

1) neurons

2) global cells or neuroglia

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16
Q

What are glial cells or neuroglia?

A

Schwanns cell= neurolemmocyte

Support neurons and functions (supporting cell)

17
Q

What is the neuron cell body called?

A

Soma

18
Q

What are the nerve signals towards the soma called?

A

Dendrite

19
Q

What is the single branch that brings nerve signals away from the soma?

A

Axon

20
Q

What are the branching at the end of the axon called?

A

Axon terminal branches

21
Q

What is a multipolar neuron?

A

Structural classification of neurons based on how many processes there are

A lot of processes

22
Q

What connects neurons together?

A

Interneurons

23
Q

What is a unipolar or pseudounipolar?

A

Single process connected to soma

24
Q

What are the function unipolar?

A

Sensory

25
Q

What is bipolar?

A

2 processes

One bringing in and other taking out

26
Q

What are the special sensory?

A

Seen in retina (light sensitive portion of the eye)

Olfactory (sense of smell) epithelium

27
Q

What is the cytoplasm?

A

Liquid (jelly like) inside of cell

28
Q

What is the nucleus?

A

Control center of cell

29
Q

What is the nucleolus?

A

Inside of nucleus makes ribosomes

30
Q

What are the nissil bodies?

A

Packages of rRNA found in cytoplasm of neuron

Like roughendoplasmic (RER)

31
Q

What are organelles?

A

Little organ like structured that perform different functions

32
Q

What is the axon coming out of the axon called?

A

Collateral axon

33
Q

What is the axoplasm?

A

Goo inside axon

Cytoplasm of the axon

34
Q

What is the nucleus of neurolemmocyte?

A

Nucleus of Schwanns cell

35
Q

What is a myelin sheath?

A

Sheath of nylon material

36
Q

What is neurolemma?

A

Coating over axon composed of mylin

37
Q

What is it called where the axon is exposed?

A

Neurofibral node (node of Ranvier)

38
Q

What are the functions of multipolar?

A

Motor interneurons

39
Q

What are the functions of bipolar?

A

Special Sensory

BIO 301 Lec (27 decks)

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