Connective Tissue

Question 1

Connective Tissue

Answer 1

Found everywhere in body

Most abundant and widely distributed tissues

Functions:

Binds body tissues together

Supports the body

Provides protection

Question 2

3 components

Answer 2

Ground subtance: water proteins, polussachrides

Fibers: produced by fibroblasts, 3 types collagen (White fibers), elastic(yellow) fibers, reticubalr fiber

Cells:

1+2= extracellular Matrix

Question 3

Menschyme

Answer 3

all connective tissue comes from this

Structure: gel like ground substance containing fibers

Function: gives rise to all other connective tisse types

location: primarily in the embryo

Question 4

Proper: Loose, aerolar

Answer 4

Structure: gel like matrix with all 3 fiber types: cells, fibroblasts, macrophages, mast cells, and some white blood cells

Function: wraps and cushions organs; its macropahges phagocytize bacteria, plays important role in inflammation, holds and conveys tissue fluid

Location: widely distributed under epithelia of body, packages organs, surrounds capillaries

Question 5

Proper: Loose: adipose

Answer 5

Structure: matrix as in arelolar but very sparse, close packed adipocytes, or fat cells, have nucleus pushed to the side by fat droplet

Function: provides reserve food fuel, insulates against heat loss, supports and protects organs

Location: under skin; around kidneys and eyeballs, within abdomen

Question 6

Connective Tissue proper: loose: reticular

Answer 6

Description: network of reticular fibers in a typical loose ground substance; lie on the network

Function: Fibers form a soft internal skeleton that supports other cell types inlcuding white blood cells, mast cells, and macrophages

Location: Lumphoid orgains (lymp nodes, bone marrow, and spleen)

Question 7

Dense Regular

Answer 7

Structure: primarily parallel collagen fibers, a few elastin fibers, fibroblast

Functions: attaches muscles to bones or to muscles; attaches bones to bones; can be pulled

Locations: ligaments, tendons.

Question 8

Dense Irregular

Answer 8

Structure: Primarily irregularly arranged collagen fibers, some elastic, fibroblast

Function: able to wisthstand tension exerted in many directions; provides structural strength

Location: dermis of the skin; submucosa of diigestive tract

Question 9

Hyaline Cartilage

Answer 9

Structure: armophous but firm matrix; collagen fibers form an imperceptitble network; chondoblasts produce the matrix and when mature lie in lacunae

Function: supports and reinforces

Location: emobryonic skeleton, covers the ends of long bones in joint cavities, nose, tranchea.

Question 10

Elastic Cartilage

Answer 10

Structure: similar to hyaline cartilage, but more elastic fibers in the matrix

Function: maintains the shape of a structure while allowing great flexibility

location: supports external ear

Question 11

Fibrocartilage

Answer 11

Structure: matrix similar to but less firm than that in hyaline cartitalge; thick collagen fibers

Function: tensile strength with the ability to absorb compressive shock

Location: intervertebral discs; pubic symphysis; discs of knee joint