Lab Week 5 (exam 2) Flashcards

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1
Q

What is tissue?

A

Group of cells that work together to perform a particular function

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2
Q

What are the 4 basic kinds of tissues?

A

1) epithelium (epithelial- plural)
2) connective tissue
3) muscle
4) nerve

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3
Q

What is epithelium tissue?

A

Covering of the human body

Ex: skin, lining of mouth and digestive system

Interfaces- way down in lungs between blood

Where glands come from

Used to describe by number of layers and shape

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4
Q

What are the different layers of epithelium tissue and what are they?

A

1) simple- single layer of cells
2) stratified- multiple layers of cells
3) pseudostratified- single layer of cells but looks like many layers

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5
Q

What are the different shapes of epithelium tissue?

A

1) squamous- wide cell but not tall (rectangle)
2) cuboidal- height and width are the same (square)
3) Columnar- height of cells is greater than width (rectangle standing up)

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6
Q

What is connective tissue?

A

Consist of sparsely (spread out) distributed cells living amidst a whole bunch of non living stuff (matrix)

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7
Q

What is matrix?

A

Non living stuff

Either solid, semisolid or liquid

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8
Q

What are 3 types of connective tissue (CT)?

A

1) CT “proper” (classical)
2) supporting CT
3) Fluid CT

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9
Q

What are the 2 types of CT Proper?

A

1) loose CT proper- a lot of fluid in matrix

2) dense CT proper- virtually no water

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10
Q

What is the dense CT regular and irregular tissue?

A

Regular- protein fibers go in the same direction

Irregular- protein fibers cross cross

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11
Q

What are the 2 types of loose CT proper tissue and explain

A

1) Areolar- true classical loose CT tissue

2) adipose- fat tissue

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12
Q

What are the 2 types of dense CT proper and explain

A

1) ligaments- almost always connect bone to bone

2) tendons - connect bone to muscle

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13
Q

What are 2 of supporting CT and explain

A

1) cartilage- (Hyaline) the matrix is semisolid

2) bone- matrix is solid

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14
Q

What are 2 types of fluid CT and explain

A

1) blood- matrix is fluid

2) lymph- matrix is fluid, lymphatic system carried this,
Mostly white blood cells and liquid

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15
Q

What are the 3 types of muscle tissue?

A

1) skeletal muscle
2) cardiac muscle
3) smooth muscle

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16
Q

What is skeletal muscle?

A

Attached skeleton

Gives conscious movement

Cells are really large

Longated and cylinder

Many nuclei

17
Q

What is cardiac muscle?

A

Found in heart

A lot of branching tissue

Have intercalated discs

One intercalated discs activated then all are activated and are electrical

18
Q

What are intercalated discs?

A

Dark bands

All work together and form electrical current

20
Q

What is smooth muscle tissue?

A

Found in walls of varied organs

In digestive organs, walls of blood vessels, walls of tiny tube like structures in lungs

No striation

21
Q

Are skeletal muscles and cardiac muscle tissues striated bare striations?

A

Yes

22
Q

What are 2 types of nerve tissue and explain

A

1) neurons- rare, transmit nerve impulses

2) glial cells or neuroglia- perform supportive functions (more common)

23
Q

What does striation mean?

A

Thin little lines in cell