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Cardiovascular System > Tissues > Flashcards

Tissues Flashcards

1
Q

What is a tissue?

A

A group of cells and their intercellular substances that work together to preform a specific function.

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2
Q

What are the four types of tissues that form organs?

A

Epithelial tissue
Connective tissue
Muscle tissue
Nervous Tissue.

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3
Q

What type of tissue lines body cavities or forms glands?

A

Epithelial tissue.

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4
Q

True or false. Connective tissue contracts to create movement of the whole body, skin or substances within the body.

A

False. Connective tissue binds, supports, protects, insulates and transports substances within the body.

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5
Q

What is the function of nervous tissue?

A

Creates and transmits electrical signals allowing communication within the whole body.

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6
Q

The epithelium forms boundaries between different environments and they have six functions, one of them is the sensory reception. What are the other five?

A 
Protection
Absorption
Filtration
Secretion
Excretion
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7
Q

True or false.

Epithelium will cover the body’s surface as well as line the body’s cavity’s.

A

True, as well as forms the glands of the body.

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8
Q

The number of layers is one way in which you are able to classify epithelial tissue? What are the two names given to the layer of epithelial tissue?

A

Simple - formed by single layer of cells.

Stratified - formed by two or more layers.

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9
Q

There are three different shapes of epithelium, can you name and explain?

A

Squamous - flattened
Cuboidal - cells are square like.
columnar - longer than wide.

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10
Q

Simple squamous epithelium is usually found in lungs, lining of the heart, blood & lymphatic vessels. Describe what you would see looking at this under a microscope?

A

Simple - single layer of cells

Squamous - disc shaped cells.

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11
Q

Stratified squamous epithelium function is to protec the underlying tissues in area of high abraision. You could find it in the esophagus, mouth or vagina. Describe what you would see if looking at this under a microscope?

A

Stratified - many layers
Squamous - disc shaped cells
Relatively thick epithelium.

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12
Q

A Single layer of cuboid like cells, which is usually found in the kidneys. What is its name and the function?

A

Simple cuboidal epithelium and the function is to secrete and absorption.

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13
Q

Glandular epithelium is a specialised cell that will make and secrete a specialised product. What are the two types of glandular epithelium called?

A

Exocrine - secrete product through a duct onto the body surface or into body cavity.
Endocrine - secrete hormones into ECF, then most hormones will move into the blood.

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14
Q

The exocrine epithelium can be classified into four ways of structure. What are they?

A

Simple - unbranched duct
Compound - branched duct
Tubular - secretory cells form tubes
Alvelor - secretory cells form small round sacs.

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15
Q

Does an avascular connective tissue have a blood supply?

A

No.

Vasularised has blood supply.

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16
Q

Connective tissue varies greatly, each having different properties. Blood is a type of connective tissue, what are the other four?

A

Loose connective tissue
Dense connective tissue
Cartilage
Bone

17
Q

Blood is made up of 3 components. Red and White cells are one of them, what are the other two?

A

Fibres - dissolved protein in blood which forms fibres during blood clotting.
Matrix - plasma

18
Q

There are two types of loose connective tissue found in the body. What are they?

A

Areolar connective tissue

Adipose tissue

19
Q

Adipose connective tissue can be found anywhere the body has areolar connective tissue, under skin, kidneys, breasts.
What are the three functions of adipose connective tissue?

A

Energy reserve
Insulation
Supports and protects organs.

20
Q

Dense connective tissue is mainly made of fibres. What are the 3 types of dense connective tissue?

A
  1. Dense regular connective tissue.
  2. Dense irregular connective tissue.
  3. Elastic connective tissue.
21
Q

What type of connective tissue forms tendons and ligaments in the body?

A

Dense regular connective tissues.

22
Q

Elastic connective tissue allows the tissue to recoil after being stretched. Where would you find this in the body?

A

Located in the walls of large arteries, vertebral ligaments and large airways.

23
Q

What is the function of dense irregular connective tissue?

A

Resists pulling forces from several directions, located in joint capsules, skin dermis and digestive tract.

24
Q

Cartilage creates a firm, flexible structure and they do not have nerve fibres or blood vessels?
What three types of cartilage are there?

A

Elastic Cartilage
Fibrocartilage
Hyaline Cartilage

25
Q

What type of cartilage forms the first skeleton in an embryo?

A

Hyaline cartilage.

26
Q

Fibrocartilage is a strong and has the ability to resist compression. Where would you find this in the body?

A

Pubic sympysis
Knee Joint
Intervetrebral discs.

27
Q

Elastic cartilage is located in the ear and epiglottis. What is its main function?

A

Creates shape with flexiblity.

28
Q

Bones are a hard calcified matrix which gives it the ability to protect and support body structures. What two type of bone cells does it contain?

A

Bone Cells are osteoblasts and osteocytes which are located in the small spaces of bone matrix.

29
Q

What are the 3 types of muscle tissue in the body?

A
  1. Cardiac muscle
  2. Skeletal muscle
  3. Smooth muscle
30
Q

Cardiac muscles is found in the heart, it is straited and involuntary. What is its function?

A

Propels blood through the blood vessels from the ventricles.

31
Q

Skeletal muscle has long parallel muscle fibres, what is its function?

A

It moves the body, attaches to bones and skin.

32
Q

What type of muscle tissues function is to propel substances through body passages?

A

Smooth muscle.

33
Q

What do you call a muscle tissue where its cell/fibres contain more than 1 nucleus?

a. Uninucleate.
b. Voluntary
c. Multinucleate.
e. Squamous

A

Multinucleate

34
Q

What is the difference between an involuntary and voluntary muscles tissue?

A

Involuntary muscle - you do not have conscioius control over the contraction of the muscle.
Voluntary - you have conscious control over when and how the muscle contracts.

35
Q

Nervous tissue is formed by the brain, spinal cord and nerves. What is its function?

A

Creates & rapidly transmits electrical signals that allow communication with the body.
This is one way your body functions are controlled and coordinated.

36
Q

Neurons are the nervous tissue cells that create and transmit electricity. What cell supports them?

A

Glial Cells (neuroglia)

37
Q

Membranes cover the body surfaces and line body cavities. What are the three membrane types in your body?

A

Cutaneous membranes - keratiinised membrane (skin).
Muscous membranes - wet membranes that line cavities open to the outside of the body (lining of vagina)
Serous Membranes - wet membranes that line cavities that are not open to the outside of the body (Pleura surrounding the lungs).

Cardiovascular System (5 decks)

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