Connective Flashcards Preview

Human Biology IA > Connective > Flashcards

Flashcards in Connective Deck (23)
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1
Q

Features of connective tissue (3)

A

connects and binds
support and shape
facilitates communication

2
Q

Functions of connective tissue (5)

A
mechanical support and protection
storage
defense
repair
communication and transport
3
Q

Structure of connective tissue (3)

A

cells
fibres
ECM

4
Q

Classification (constituents)

A

fibres < cells = loose

fibres > cells = dense

5
Q

Classification (arrangement)

A
parallel = regular
non-parallel = irregular
6
Q

Function of dense regular

A

binds bones together and attaches muscle to bone

eg. tendons and ligaments

7
Q

Functions of dense irregular

A

protect organs from injury, tough

eg. dermis of skin, capsules around organs

8
Q

Functions of loose (4)

A

cushions and nourishes epithelia
arena for immune defense
binds organs
allows passage for nerves and blood vessels
eg. underlines all epithelia, outer coverings of blood vessels

9
Q

Types of loose connective tissue (3) and their function and location

A
  1. areolar tissue (strength, elasticity, surrounds vasculature and nerves)
  2. adipose tissue (energy, insulate, protect, surrounds organs and under skin)
  3. reticular tissue (support and binding of organs, liver, kidney, ….)
10
Q

Extracellular matrix (function, composition, location)

A

support surrounding cells
regulate communication and transport

clear, colourless, glycans, protein, water molecules

secreted by CT cells

viscosity: restricts penetration by bacteria
oedema (swelling): abnormal accumulation of interstitial fluid

11
Q

Three types of fibres

A

collagen
elastin
reticular

12
Q

Collagen (function, location)

A
strength and cushioning
function depends on amount and arrangement

cartilage, bone, tendon, ligament

13
Q

Elastin (function, location)

A

coil and recoil, flexibility

skin, arteries, bronchi

14
Q

Reticular (function, location)

A

form delicate, irregular, flexible framework, inelastic, support cellular structures

spleen, liver, marrow

15
Q

Cells for structure and storage (2)

A

fibroblasts, adipocytes

16
Q

Cells for defense (4)

A

macrophages
plasma cells
mast cells
leukocytes (from blood)

17
Q

Cells for reserve (1)

A

stem cells

18
Q

Fibroblasts (function, appearance)

A

produce all fibres and ECM in CT, repair (by producing collagen, scar tissue)

long cytoplasmic processes in protein producing and secreting cells

fibrocytes: mature, less active

19
Q

Adipocytes (function, 4)

A

store fat (energy), insulate, protect, shock absorb

white and brown fat

20
Q

Macrophages (function, location)

A

phagocytosis cell debris

lungs: “dust cells”
spleen: “RBC scavengers”

21
Q

Plasma cells (function)

A

defense
produce antibodies
specific antibody for antigen

22
Q

Mast cells (function)

A

store chemical mediators of inflammatory response (eg. allergic reactions)

23
Q

Leukocytes (function, location, 3 types and function)

A

defense

circulate in blood

lymphocytes: immune reactions, neutrophils: inflammation caused by bacteria, eosinophils: parasitic infection and allergic reactions