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ATAR 11 - Human Bio > Tissues > Flashcards

Tissues Flashcards

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Biology 101 flashcards
1
Q

What are the two types of Epithelium?

A

Simple
Stratified

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2
Q

How many layers of cells do Simple Epithelium have?

A

A single layer of cells with every cell in direct contact with the basement membrane

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3
Q

How many layers of cells do stratified epithelium have?

A

More than one layer of cells. The basal layer being the only one that is in contact with the basement membrane.

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4
Q

Where can you find epithelial tissue?

A

Lining the cavities of the body, e.g. intestines, cheeks, trachea.

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5
Q

Physical characteristics of Epithelial tissues?

A
  • Closely packed cells
  • Cells rest on a basement membrane
  • Consist of a nucleus, cytoplasm and cell membrane
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6
Q

Function of epithelial tissue

A

There are three primary functions of epithelial tissue. serving as a protective barrier, secreting substances, and absorbing substances.

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7
Q

What is the shape of squamous epithelium?

A

Flat, like paving.

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8
Q

What is the shape of cuboidal epithelium?

A

Cube like, the cells height is the same as the cells width.

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9
Q

Shape of Columnar epithelium?

A

Like columns, the cells height it larger than the cells width.

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10
Q

Connective tissue function

A

Tissue that supports, protects, and gives structure to other tissues and organs in the body.

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11
Q

Types of connective tissues?

A

Bone, tendons, cartilage, ligaments, fat and fascia

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12
Q

Function of connective tissues

A

To provide the body with it supporting framework and bind the parts of the body together.

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13
Q

Does connective tissue have good blood supply?

A

Yes

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14
Q

How are connective tissues separated?

A

By fibres and ground substances

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15
Q

What are ground substances?

A

It’s an an amorphous gelatinous material. It is transparent, colourless, and fills the spaces between fibres and cells.

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16
Q

What are fibres?

A

Tissue made of long threadlike cells, such as muscle fiber or nerve fiber.

17
Q

What are muscle tissues?

A

Cells that have the special ability to shorten or contract in order to produce movement of the body parts

18
Q

What allows muscle tissues to shorten and contract?

A

Actin and myosin

19
Q

What are the 3 types of muscle tissues?

A

Skeletal, cardiac and smooth

20
Q

Skeletal muscle function

A

They’re muscles that connect to your bones and allow for you to perform a wide range of movements and functions.

21
Q

Are skeletal muscles voluntary or involuntary tissue?

A

Voluntary, meaning they can contract and relax at will.

22
Q

Physical characteristics of skeletal muscle

A

Striated, multi nucleated, tubular and usually attached to bone.

23
Q

What are cardiac muscles?

A

Cardiac muscle are the muscles that make up the thick middle layer of the heart.

24
Q

Cardiac muscle function

A

The cardiac muscle is responsible for the contractility of the heart and, therefore, the pumping action.

25
Q

Are cardiac muscles voluntary or involuntary tissues?

A

Involuntary, as your heart will not contract or relax at will.

26
Q

Physical characteristics of cardiac muscle

A

Striated, branched, uninucleate, only found in the heart.

27
Q

What are smooth muscles?

A

Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern.

28
Q

Where to find smooth muscle?

A

Smooth muscle is found in the walls of hollow organs, including the stomach, intestines, bladder and uterus and in the walls of blood vessels.

29
Q

Are smooth muscles voluntary or involuntary tissues?

A

Involuntary, trust me bro it is

30
Q

Physical characteristics of smooth muscle

A

Non-striated, spindle shaped, uninucleate, involuntary

31
Q

What is nervous tissue?

A

Nervous tissue, also called neural tissue, is the main tissue component of the nervous system.

32
Q

Nervous tissue function

A

The main function of nervous tissue is to receive stimuli and send signals to the brain and spinal cord. These signals are sent to the muscles via the nerves.

33
Q

Are nervous tissues voluntary or involuntary tissues?

A

Involuntary. (For now bro just stick with it)

ATAR 11 - Human Bio (3 decks)

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