Tissues Of The Body Flashcards

1
Q

What are the four main types of tissue in the body?

A

Epithelial
Muscle
Nervous
Connective

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2
Q

What is epithelial tissue/where is it found ?

A

Epithelial tissue covers and protects the bodies surfaces, lines cavities, transports substances in and out of the body or organs and forms many glands.

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3
Q

What is Muscle tissue and where is it found?

A

Muscle tissue produces movement of the body and it parts, and movement of organs. Muscle tissue is found in skeletal muscles, cardinal muscles as well as in the walls of hollow organs.

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4
Q

What is connective tissue and where is it found?

A

Connective tissue supports the body by holding parts together, transporting substances through the body and protecting the body from foreign invaders. Connective tissue is found in bones, ligaments, tendons, cartilage and blood.

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5
Q

What is nervous tissue and where is it found ?

A

Ergo us tissue is the most complex tissue of the body. It provides communication between various parts of the body and integrates activities between them. This type of tissue is able to generate complex messages control and coordinate most functions of the body.

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6
Q

What are the 5 main functions of the skeletal system?

A
Support 
Movement 
Protection of major organs 
Storage of minerals 
Red blood cell formation
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7
Q

What is the difference between compact bone and Trabecular Bone ?

A

compact bone is strong and heavy, made up if compactly packed patrons and good at transmitting fierce in one direction. Whereas Trabecular bone is light and spongy and able to resist and channel forces that come from multiple direction.

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8
Q

What are the four classes of bone?

A

Long bones
Short bones
Flat bones
Irregular bones

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9
Q

What is the axial skeleton and what bones of the body does it include ?

A

The adidas skeleton refers onto Binet if the core that protect vital organs, this includes, the skull (cranium and facial bones), the Vertebral column and rib cage.

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10
Q

What is the appendicular skeleton and what bones does it refer to?

A

The appendicular skeleton refers to bones of the limbs which re most important for movement. This includes the arm, forearm, tpleg, thigh, hands and feet

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11
Q

How are the bones in hands and feet different?

A

Whilst both have Phalanges (fingers and toes) hands alphabets carpels and metacarpals and feet gave tarsaks and metatarsals .

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12
Q

What are girdles, and what are the two main girdles in the human body?

A

Girdles connect the bones in the appendicular skeleton (limbs) to the axial skeleton. In our bodies we have the pectoral (shoulder girdle and the Pelvic girdle.

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13
Q

Describe what bone is and it’s purpose

A

Bone is a connective tissue that supports other tissues, organs and maintains form.

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14
Q

What does extracellular mean and how does it relate to bones? Matrix.

A

Extracellular refers to anything in a tissue that is not a cell. Bone has cells as well has a calcified extracellular matrix.

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15
Q

What is the organic component of bone?

A

Collagen - important for flexibility and response to tension

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16
Q

What is ther inorganic component of bone?

A

Hydroxyapatite - (Mineral salts) makes bones hard and able to resist compression.

17
Q

What is the difference between osteoblasts and osteoclasts?

A

Osteoblasts are bone formers ( secrete bone matrix) whereas osteoclasts are bone destroyers (remove bone matrix) .

Similar amounts of bone being made and destroyed = maintained homeostasis and good bone maintenance.

18
Q

What are osteocytes?

A

Mature bone cells within bone matrix.
As bone formed osteocytes get trapped in bone matrix.
They instigate processes that recycle the proteins from bone matrix.
Communicate between the other two cells.

19
Q

What are the four types of cells that make up 2% of bone matrix?

A

Osteopenia cells - stem cells that produce osteoblasts
Osteoblasts - MAKERS - produce new bone matrix
Osteoclasts -DESTROYERS - remove bone matrix
Osteocytes - MAINTAINERS AND COMMUNICATERS - recycle protein and minerals from matrix and control activity of sorts oblasts/oclasts

20
Q

What is the structural difference between Compact and cancellous bone?

A

Compact bone has an osteoblasts structure and cancellous bone has a trabecular structure.

21
Q

What are tissues?

A

Cells grouped together in a highly organised manner according to the specific structure and function