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71 terms

A & P Quiz #3

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