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Questions pertaining to the material covered in the Anatomy and Physiology Quiz #3

Cells and Matrix

What are the two components of connective tissue?

Fibroblasts

This type of cell is capable of making all 3 types of fibers.

Structural

Fibroblasts are _____ cells

Fibroblasts

The most common type of cells found within connective tissue are _____

Proteins

Fibroblasts secrete _____ into the surrounding intercellular matrix.

Fat Storage

Adipocytes are specialized for _____

Adipocytes

This structural cell is filled with a droplet of triglycerides.

Star Soap Bubble

Fibroblasts are _____ shaped while adipocytes are _____ shaped.

Secretion (manufacture) and Maintenance of Cartilage Matrix

Condroblasts and chondrocytes are responsible for what two tasks?

Cartilage

Chondroblasts and Chondrocytes are found only in _____.

Bone Matrix

Osteoblasts and Osteocytes are responsible for the secretion and maintenance of _____.

Osteoblasts and Osteocytes

Structural cell(s) found only in bony tissue are known as _____

Defensive

Cells responsible for keeping the body healthy and safe

Macrophages and Microphages

Defensive cells responsible for engulfing and destroying foreign and damaged cells are known as _____

Microphages and Macrophages

The defensive cells that are also known as scavenger cells are called_____.

Release substances important to defense against foreign cells and particles.

What is the function of the mast cells?

Plasma Cells

Modified white blood cells involved in immune response and the clotting of blood are called _____

Ground Substance

What determines the texture of a connective tissue?

Ground substance and fibers

Matrix is composed of what two substances?

Collagenous Fibers

Composed of protein collagen

True

True or False: Collagenous fibers are large in diameter.

True

True or False: Collagenous fibers are flexible but resistant to stretch.

Elastic

Name the type of fiber capable of stretch and recoil.

Protein

Elastic fibers are composed of _____ elastin.

True

True or False: Elastic fibers can expand up to 50% more than their original length?

False

True or False: Reticular fibers are large in diameter.

Reticular

The type of fiber that resembles a mesh or spiderweb.

Connective Tissue Proper

The most common type of connective tissue is

Loose Connective Tissue

The most common type of connective tissue proper is

Areolar

Loose connective tissue is also known as _____

Fibroblasts, adipocytes and mast cells

List the three types of cells found in loose connective tissue

True

True or False: adipose tissue is a modification of loose connective tissue.

Protection, cushion and insulation

List the 3 functions of adipose tissue.

Adipose

The heart and kidneys are both organs that are encased in a layer of _____ tissue.

Reticular

Connective tissue composed of fine reticular fibers arranged in a three dimensional network.

Maple Syrup

The texture of connective tissue proper resembles what substance?

True

True or False: in both dense connective tissue and elastic tissue, fibers that are regular are parallel and not well vascularized while irregular fibers are not parallel and well vascularized.

Dense Connective

Tendons and ligaments are made up of _______ tissue.

False

True or False: in supportive connective tissue, the ground substance is thick and viscous.

Cartilage and Bone

_____ and _____ are both supporting connective tissues.

Hyaline

This type of cartilage has a high concentration of small diameter fibers.

True

True or False: Hyaline cartilage is very prevalent throughout the body.

False

True or False: Developmental bone substrate and the costal cartilage are both types of fibrocartilage.

Elastic Cartilage

Cartilage that contains a high concentration of elastic fibers.

False

True or False: one example of elastic cartilage is the ear lobe

True

True or False: elastic cartilage if found in the larynx and upper outer ear.

Fibrocartilage

Cartilage containing a network of large collagenous fibers imbedded in a less rigid ground substance.

Fibrocartilage

The cartilage commonly known as a shock absorber in the body

Miniscus, Intervertebral discs and symphysis joints

List 3 places where fibrocartilage is found.

True

True or False: fibrocartilage is compressable and stretchable

Bone

Rigid connective tissue with a mineralized matrix

Fibrocartilage, elastic cartilage, hyaline cartilage and bone

List in order from least rigid to most rigid the 4 different types of cartilage.

It contains no fibers

What is unique about blood in comparison to the other connective tissues?

True

True or False: the skin is an organ.

Protects, regulates temperature, houses sensory receptors, synthesizes chemicals and excretes waste.

List the 5 functions of the skin.

Skin and accessory organs

The integumentary system is composed of ____ and _____

Radiation of heat through subcutaneous dilated blood vessels, evaporation of perspiration on the surface of the skin, and convection and conduction of heat directly through the skin.

List the 3 ways that the body eliminates excessive heat.

True

True or False: Keratin is a chemical synthesized by the skin.

d. all of the above

Which of the following demonstrates how the skin acts to protect the body: a. it is not easily damaged b. it contains the internal organs c. it acts as a physical barrier between the inside and outside of the body d. all of the above.

Stratum basale and stratum spinosum

What two layers of the epidermis make up the stratum germinativum?

Mitosis

What function do the cells in the stratum germinativum perform that other layers of skin do not?

Stratum Basale

the deepest layer of the skin.

False

True or False: the stratum basale is still slightly mitotic.

Stratum Basale

In which layer of the epidermis does the synthesis of keratin occur?

Keratin

A chemical produced by the skin that makes the skin tough, resistant to abrasion and waterproof.

Keratin

What gives the stratum spinosum a slightly spiney look?

4 / 5

How many layers are present in thin skin vs thick skin

Stratum lucidum

Present in only the thickest skin

Keratin

In the stratum granulosum, cells have accumulated enough _____ in them that they start to become distinctive.

Palms of the hands and soles of the feet

What two areas of the body present with stratum lucidum?

Stratum Corneum

Layer of the skin that is composed of 20-30 layers of flattened, keratinized dead cells.

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