Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

What is the genetic disorder of the CT which weakens it (especially elastic fibers)?

marfan syndrome

What is the most abundant and diverse of the tissue types?

Connective tissue

What are the types of CT?

Loose CT

Dense CT

Cartilage

Bone

Blood

What is the is the embryological basis for all CT (as well as muscle tissue)?

Mesenchyme

What are some functions of connective tissue?

1. binding and supporting

2. protecting

3. insulating

4. storing reserve fluid and energy

5. transporting substances within the body

6. movement

What type of CT provides insulation and fuel storage?

Fat

What three types of CT bind, support, and protect your organs and give you a skeleton so you can move with purpose?

bones

tendons

cartilage

What transports your hormones and nutrients all over your body?

blood

What are the three factors of CT that set them apart from other tissue types?

1. they all develop from Mesenchyme

2. they have different degrees of vascularity or blood flow

3. they are mostly composed of nonliving material

What is a loose and fluid embryonic tissue that CT arrives from?

Mesenchyme

What is the nonliving material that composes CT?

Extracellular matrix

What are the two components of the extracellular matrix

Ground substance

fibers

What is the watery substance that fills in spaces between these cells and protects the cells from their surroundings?

ground substance

(proteoglycans and glycosaminoglycans)

What provides support and structure to the shapeless ground substance?

fibers

What is the strongest and most abundant type of fiber?

collagen fibers

What type of fiber forms a branching network and produces elastin which lets them stretch and coil like rubber bands?

elastic fibers

What are short, finer collagen fibers that form spongelike networks that craddle and support the organs?

reticular fibers

blast =

immature

Stem cells are _________ and are in the process of dividing

blast

Whats function is to secrete the ground substance and fibers that form its unique matrix?

stem cells

What are the blast cells of cartilage?

chondroblasts

What are the blast cells of bone tissue?

osteoblasts

(forms bones)

blast (after maturation) =

cytes

What is a mature osteoblast called?

osteocyte

What is a mature chondroblast called?

chondrocyte

What type of CT cells work as your immune system?

macrophages

leukocytes

What type of cell in CT eats foreign invaders?

macrophages