connective and adipose tissue

Question 1

Cells of connective tissue

Answer 1

Mesenchymal stem cells
fibroblasts
macrophages
mast cells
plasma cells
leucocytes
country science

Question 2

Fibres of connective tissue

Answer 2

Collagen, elastin, reticular fibres(type III collagen)

Question 3

Connective tissue functions

Answer 3

Binding and support
protection
insulation
storing reserve fuels
transport substances
separation of tissues

Question 4

Two types of connective tissue

Answer 4

Loose areolar

dense fibrous

Question 5

Two types of dense connective tissue

Answer 5

Regular

irregular

Question 6

Macrophage

Answer 6

Derived from blood monocytes
phagocytosis degrade foreign organisms
and during presenting cells to T lymphocytes

Question 7

Mast cells

Answer 7

Three types of granules
histamine- increased blood vessel wall permeability
heparin- an anticoagulant
cytokine- attract eosinophils and neutrophils

IgE molecules which bind allergens

Question 8

White adipocyte

Answer 8

Single enormous lipid droplet with nuclear cytoplasmic organelles all squeezed one side
function padding shock absorber and energy reserve
normal number of mitochondria
in adults lipid breakdown is slow and heat only generated after shivering

Question 9

Brown adipose

Answer 9

Few in adults
many mitochondria
many small lipid droplets with nucleus and cytoplasm all squeezed into centre
function insulation and energy reserve
in neonates and young children lipid breakdown is accelerated option phosphorylation is uncoupled to generate heat

Question 10

Function of collagen

Answer 10

Flexible with high tensile strength

Question 11

Ground substance

Answer 11

Has a high water content
composed of glycoaminoglycan’s
hyaluronic acid

Hydrated gel structure
resist compression

Question 12

Example of irregular dense connective tissue

Answer 12

Superficial layer of dermis- was a stress in one direction

Question 13

myo tendinous junction

Answer 13

Skeletal muscle fibres connecting with tendon

Question 14

Fascia

Answer 14

Dense regular connective tissue
sounds muscle
like tenants and ligaments made up of collagen in udulating pattern

Question 15

Scurvy

Answer 15

Vitamin C C is required for the intracellular production of procollagen
hydroxylase proline and lysine hops form procollagen
without vitamin C collagen formation is disrupted causing a wide variety of problems

Question 16

Symptoms of scurvy

Answer 16

Gum disease
leading
bruising on the skin
poor wound healing

Question 17

Marfan’s syndrome

Answer 17

Autosomal dominant
mutation fibrillin one gene
tall
long fingers
frequent joint application
aortic rupture

Elastin is a major component of collagen

Question 18

Osteogenesis imperfecta

Answer 18

Ricketts and children
most autosomal dominant
mild to severe
mutated collagen that do not knit together or not enough produced or both

Weakened bones
short stature
presence of blue sclera
hearing loss
hypermobility
poor teeth development's

Question 19

Compare loose and dense connective tissue

Answer 19

Loose connective tissue has more extracellular matrix
loose connective tissue cells are further apart and free to move
in dense connective tissue cells tightly packed together and not as mobile
dedicate tissue cells are mainly fibroblasts
loose areolar tissue only has collagen and elastin in the matrix it has no reticulin