Topic 2

Question 1

Tissue

Answer 1

group of cells with similar structure and related function

Nervous, Muscular, Connective, Epithelial

Question 2

General Characteristics of Epithelial Tissue

Answer 2

Tightly packed, cells reproduce readily, avascular, polarity, lines the cavities of urinary, reproductive, digestive and respiratory system, good nerve supply, supported by connective tissue

Question 3

Simple Squamous

Answer 3

single layer, flat disc shaped cells, allows diffusions and filtration, secretes lubricating substances, lining of heart and air sacs of lungs

Question 4

Simple Cuboidal

Answer 4

single layer, cube like cells, central nucleus, secretion and absorption, found in kidney tubules

Question 5

Simple Columnar

Answer 5

single layer, tall cells, nucleus lower in cell, microvilli,cila, mucus secreting goblet cells, absorption, digestive tract

Question 6

Pseaudostratified Columnar

Answer 6

single layer, different heights, some reaching surface, nucleus seen at different levels, cila and goblet cells lines trachea and upper respiratory tract, propulsion of mucus

Question 7

Stratified Squamous

Answer 7

thick, several layer, base cells cuboidal surface cells squamous( full of keratin),basal cells are active in mitosis, protects, lining of esophagus and trachea

Question 8

Transitional

Answer 8

thick (stratified), surface cells squamous, base cells cuboidal, stretch, bladder

Question 9

Gland

Answer 9

one or more cells that make and secrete substances

Question 10

Endocrine

Answer 10

produces hormones, ductless glands

Question 11

Exocrine

Answer 11

produces anything but hormones, have ducts that connect to the outside environment

Question 12

Connective Tissue Characteristics

Answer 12

cells are farther apart, extracellular matrix, vascular or avascular, slower reproduction
composed of: ground substances(insterstial fluid, proteins that are the glue that allow cells to attach to the matrix),proteoglycans-made of proteins and carbs, glycans trap fluid.
fibres- collagen(strength), elastic, and reticular (form of collagen)
cells-fibroblast- make connective tissue, create proteins

Question 13

Mesenchyme

Answer 13

all connective tissue is formed from this tissue, comes from embryo.

Question 14

Areolar

Answer 14

gel-like matrix, elastic, collagen
wraps/cushions organs
inflammation 
holds tissue build
Is what the Lamina propia is made of (mucus membrane)

Question 15

Adipose

Answer 15

gel-like matrix
closely packed fat cells (adipocytes)
nucleus pushed to the side 
reserves food fuel
insulates against heat loss
supports and protects organs

Question 16

Reticular

Answer 16

loose reticular fibres
gel-like ground substance
reticular cells lie on fibres
fibres from soft internal skeleton, support white blood cells

Question 17

Regular Dense

Answer 17

parallel collagen fibres, few elastic fibres
attaches muscle to bone, bone to bone
withstands stress when force is applied in the same direction
tensile strength

Question 18

Irregular Dense

Answer 18

irregularly arranged collagen fibres, with elastic fibres
withstand force being applied in multiple different directions
dermis of skin