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HUBS191 > Tissues > Flashcards

Tissues Flashcards

1
Q

What are the 4 different human tissue?

A

Epithelial, connective, muscle, nervous

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2
Q

What is the human act?

A

1) Voluntary donation of bodies
2) requires dual signed consent from donor and family member
3) most bodies are held for 18 months, however body parts can be kept longer for research and teaching
4) the family may ask for the body back whenever

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3
Q

What are the 3 connective tissues?

A

Proper, Fluid, Supporting

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4
Q

What are the 2 subtypes of connective tissue proper?

A

Loose and Dense

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5
Q

What are the 2 subtypes of Fluid Connective Tissues?

A

Blood and Lymph

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6
Q

What are the 2 subtypes of Supporting Connective Tissue?

A

Cartilage and Bone

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7
Q

What are the 3 loose connective tissue?

A

Areolar, Adipose, Reticular

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8
Q

Describe Collagen and Elastic Fibres

A 
Collagen = thick fibres and very strong and wont snap
Elastic = thin fibres and very stretchy
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9
Q

What is areolar tissue?

A
  • Is part of the loose connective tissue

- It is most widely distributed in the animal body.

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10
Q

What is Adipose Tissue?

A
  • Apart of the loose connective tissue
  • Is found deep in the skin, especially on the side of the body
  • Provides a layer of protection padding
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11
Q

What is Reticular Tissue?

A
  • Is apart of the loose connective tissue
  • It is tough
  • Has a flexible network that provides support and resists distortion
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12
Q

What are the 2 types of Dense Connective Tissue?

A
  • Dense Regular

- Dense Irregular

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13
Q

Describe what Dense Regular Connective Tissue is

A
  • Is found in tendons and the sheets connecting skeletal muscles to bone
  • Also in ligaments, that interconnect the bones/stabilise the positions of internal organs
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14
Q

Describe what Dense Irregular Connective Tissue is

A
  • Are the fibres that form an interwoven meshwork that has no consistent pattern
  • They strengthen and support areas that are under stress
  • The Elastic fibres outnumber the collagen fibres, making the tissue springy and resilient. (found between the vertebrae of the spinal cord and the walls of large blood cells, plus more)
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15
Q

Describe Fluid Connective Tissue

A
  • They have an aqueous matrix that includes suspended proteins
  • In Blood, the watery matrix is called Plasma
  • Lymph is essential to homeostasis
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16
Q

What are the 3 subtypes of Supporting Connective Tissue?

A
  • Hyaline cartilage
  • Elastic cartilage
  • Fibrocartilage
17
Q

Describe Hyaline Cartilage

A
  • found between the tips of the ribs
  • covers bone surfaces at movable joints
    supports respiratory passageways
  • forms part of the nasal septum
  • is stiff but also somewhat flexible
  • reduces friction between bones
18
Q

Describe Elastic Cartilage

A
  • supports the external ear + some smaller internal structures
  • allows distort without damage and returns to its original shape
19
Q

Describe Fibrocartilage

A
  • is extremely durable + tough due to its matrix
  • its matrix is densely woven with collagen fibres
  • found in the knee joint etc (meniscus)
20
Q

Describe Bone Tissue

A
  • 2/3 of the bone matrix consists of a mixture of calcium salts.
  • the rest is dominated by Collagen
  • calcium salts = brittle and hard
  • collagen fibres = strong and relatively flexible
21
Q

What are the 3 subtypes of Muscle Tissue

A

Skeletal, Cardiac, Smooth

22
Q

Describe Skeletal Muscle Tissue

A
  • is found in skeletal muscles
  • if found in organs that also contain connective tissue and nervous tissue
  • cells = long, cylindrical and banded
  • have multiple nuclei
23
Q

Describe Cardiac Muscle Tissue

A
  • Is found in the heart
  • cells = short, branched and striated
  • usually has 1 nucleus
24
Q

Describe Smooth Muscle Tissue

A
  • found throughout the body, e.g skin
  • cells = short, spindle shape and nonstriated
  • have a single central nucleus
25
Q

Describe the Nervous Tissue

A
  • specialised to conduct electrical impulses form one region of the body to another
  • made up of Neurons and Glia
  • 98% of the nervous tissue is in the brain and spinal cord
26
Q

Describe Neurons and Glia

A

Neurons = transfer information from place to place + process information. Longest cell in your body

Glia = There are several types, all have different functions.
- they support, protect and repair nervous tissue + maintain the nutrient supply to neurons

27
Q

What are the 2 subtypes of Epithelial Tissue

A

Epithelia, Glands

28
Q

What is the functions of the Epithelial Tissue

A
  • Provide Physical Protection
  • Control permeability
  • Provide sensation\Produce specialised secretions
29
Q

Describe Epithelial Tissue

A
  • Are thin, flat and somewhat irregular shaped
  • they cover exposed surfaces
  • forms secretory glands
  • lines internal passageways and chambers
30
Q

Describe Glands

A
  • these are a collection of epithelial cells that produce secretion glands
  • the glands that secrete into interstitial fluid = endocrine glands
  • the glands that secrete into pathways called ducts = exocrine glands

HUBS191 (13 decks)

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