Lecture Chp. Five: Tissues Flashcards
General traits of connective tissue
- Most abundant tissue type
- Have lots of: Intercellular material (ground substance) which forms a matrix around cells
- Vary in levels of vascularization
- Cells usually divide
Functions of connective tissue:
- support and protection
- help repair tissue from damage
- help protect against infection
- serve as frameworks
- bind structure
- may store fat and fill spaces
- May make blood cells
What are the three connective tissue cell types:
- Fibroblasts
- Macrophages
- Mast cells
- Most common fixed cell
- Large, star-shaped cell
- Produces fibers
Fibroblast
- Wandering cell
- Do phagocytosis
- Aid the immune system
Macrophage
- Fixed cell
- Release Heparin and/or histamine
Mast cell
heparin
stops clotting
histamine
allergies
Most abundant tissue type
connective tissue
Vary in levels of vascularization
connective tissue
What are the three fibers with connective tissue:
- Collagen Fibers
- Elastic Fibers
- Reticular Fibers
- Thick fibers composed of collagen
- very strong
- hold structures together
- make up tendons and ligaments
- also found in dermis
collagen fibers
very strong fibers
collagen
fibers that hold structures together
collagen
fibers that make up tendons and ligaments
collagen
-Bundles of microfibrils embedded in elastin
elastic fibers
Help form vocal chords
elastic fibers
branching
elastic fibers
very thin, highly branched, collagenous fibers
reticular
Reticular fibers form a:
supportive network
Where are reticular fibers found?
spleen and lymph nodes
- loose connective
- adipose
- reticular connective
- dense connective
- elastic connective
Connective tissue proper
- cartilage
- bone
- blood
specialized connective tissue
specialized connective tissue helps make up:
the skeletal system
what is an example of loose connective tissue?
areolar tissue
-many fibroblasts with collagen and elastic fibers
loose connective tissue
What type of connective tissue is found beneath the epithelia?
loose connective tissue
loose connective tissue binds skin to:
most structures
where is loose connective tissue found?
between muscles
blood vessels in loose connective tissues help:
nourish epithelia
what does loose connective tissue consist of?
fluid to gel-like matrix
Adipose tissue is made up of:
adipocytes
cushions, insulates, and stores fat
adipose tissue
beneath skin, behind eyeballs, and surrounds kidneys and heart
adipose tissue
support structure for organs
reticular connective tissue
Includes the: liver, spleen, and lymphatic organs
reticular connective tissue
Reticular connective tissue is composed of:
Reticular fibers
Makes up: tendons and ligaments
dense connective tissue
bind body parts together
dense connective tissue
type of connective tissue that has a poor blood supply
dense connective tissue
Many collagen and elastic fibers with few fibroblasts
dense connective tissue
Many elastic fibers and some collagen fibers and fibroblasts
elastic connective tissue
form attachments between bones
elastic connective tissue
form walls of large airways, arteries, and the heart
elastic connective tissue
what does osseous tissue contain?
osteocytes and a solid matrix
supports/protects soft tissues and forms blood cells
osseous tissue
forms the skeleton
osseous tissue
helps make blood cells, is an attachment site for muscles, and supports and protects the body
osseous tissue
chrondrocytes in lacunae and a rigid matrix
cartilage
has a poor blood supply
cartilage
What are the three types of cartilage?
- Hyaline
- Elastic
- Fibrocartilage
Cartilage is _____
poorly vascularized