Mod 4 TISSUE LIVING FABRIC
Edema (swelling) occurs when ________.
areolar tissue soaks up excess fluid in an inflamed area
Which of the following is NOT found in cartilage but is found in bone?
blood vessels
A smooth muscle cell has a central nucleus but lacks striations.
t
Blood is considered a type of connective tissue.
t
Cartilage tissue tends to heal less rapidly than bone tissue.
t
Elastic cartilage tissue is found in the walls of the large arteries that leave the heart.
t
Epithelial tissues always exhibit polarity; that is, they have a free surface and a basal surface.
t
Goblet cells are found within pseudostratified ciliated columnar epithelium.
t
Squamous cells are flattened and scale-like when mature.
t
The shock-absorbing pads between the vertebrae are formed of fibrocartilage.
t
A substance received or given off by your body will likely pass through which tissue type?
epithelial tissue
Which of the following is a property of epithelial tissue?
epithelial tissue is inverted
What tissue type has polarity and is avascular?
epithelium
Connective tissue extracellular matrix is composed of ________.
fibers ground substance
The primary blast cell for connective tissue proper is the _____
fibroblast
The primary blast cell for connective tissue proper is the ________
fibroblast
Which is true concerning muscle tissue?
highly cellular and well vascularized
Select the correct statement regarding the stem cells of connective tissue.
"Blast" cells are undifferentiated, actively dividing cells.
Choose the answer that shows the correct order for the standard preparation of a histological specimen.
(1) fixation, (2) sectioning, (3) staining
Which of the following statements is true of connective tissue?
Collagen fibers provides high tensile strength.
Which of the following statements is true?
Dense connective tissue includes a great deal of collagen
Which of the following is true about epithelia?
Endothelium provides a slick surface lining all hollow cardiovascular organs.
In adult humans, most cancers are carcinomas or adenocarcinomas. These include cancers of the skin, lung, colon, breast, and prostate. Which of the four basic tissue types is involved, and why?
Epithelial tissue: it is exposed to the environment and is constantly dividing, both factors allowing more opportunity for damage and overcoming growth control mechanisms.
How is hyaline cartilage different from elastic cartilage or fibrocartilage?
Fibers are not normally visible.
Which of the following describes a holocrine gland?
Holocrine glands secrete their products by rupturing.
Select the correct statement regarding tissue repair.
Inflammation causes capillaries to dilate and become permeable.
Which event must precede all others during tissue repair?
Inflammation occurs near the affected cells.
Which of the following statements is INCORRECT?
Simple cuboidal epithelia are found in areas that stretch.
Select the correct statement regarding epithelia.
Stratified squamous epithelia are present where protection from abrasion is important.
Which of the following statements is INCORRECT?
The cutaneous membrane is made of a simple columnar epithelium
Why are adipose tissue, blood, and bone all considered to be connective tissues?
They have a common origin: mesenchyme.
Which of the following is NOT a role of connective tissue?
absorbtion
Generally speaking, connective tissues are largely non-living extracellular matrix. Which of the following is an EXCEPTION?
adipose
Which tissue type would likely function to hold the kidneys in place?
adipose
Which is the most atypical connective tissue since it does NOT act as a binding or packaging material under normal conditions or provide structural support?
blood
What tissue has lacunae, calcium salts, and blood vessels?
bone osseus tissue
After open heart surgery, the heart's pumping efficiency may be reduced because__________.
both adhesions and fibrosis will interfere with the heart's normal pumping activity and reduce its effectiveness
Which tissues have little to no functional regenerative capacity?
cardiac muscle and nervous tissue in the brain and spinal cord
Cell type NOT found in areolar connective tissue.
chondrocyte
choose which tissue would line the uterine (fallopian) tubes and function as a "conveyer belt" to help move a fertilized egg towards the uterus.
ciliated simple columnar epithelium
Choose which tissue would line the uterine (fallopian) tubes and function as a "conveyer belt" to help move a fertilized egg towards the uterus.
ciliated simple columnar epithialum
The fiber type that gives connective tissue great tensile strength is _____
collagen
The reason that intervertebral discs exhibit a large amount of tensile strength, which allows them to absorb shock, is because they possess __
collagen fiber
Connective tissues are made of different combinations of ground substance and fibers. As you compare slides of connective tissues, which would most likely be the strongest type of connective tissue based on the composition of ground substance and fibers?
connective tissue high in collagen fibers
Which of the following is a dry membrane exposed to the air?
cutaneous membrane
Which of the following is a modification of the simple columnar epithelium that allows for efficient absorption along portions of the digestive tract?
dense microvilli
Mesenchymal cells are most commonly found in ________ connective tissue.
embryonic
The shape of the external ear is maintained by __
elastic cartilage
Skin, lung, and blood vessel walls have which tissue characteristic in common?
elastic fiber
Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as __
endocrine
How are endocrine and exocrine glands different from each other?
endocrine glands, no ducts
Arteries, veins, and lymphatics keep clots from sticking as long as their ________ is intact and healthy.
endothelium
Which tissue type consists of a sheet of cells that covers a body surface or lines a body cavity?
epithelia tissue
Cartilage has good regenerative capacity, while most epithelial tissues do not.
f
Endocrine glands are often called ducted glands.
f
Fibrocartilage is also known as gristle.
f
Nervous tissue consists mainly of neurons and collagen fibers.
f
Tendons and ligaments are composed mainly of dense irregular connective tissue.
f
basic difference between dense irregular and dense regular connective tissues is in the amount of elastic fibers and adipose cells present.
f
All muscle cells contain striations.
false
Pseudostratified epithelia are well adapted to the digestive system because the cilia increase the surface area for absorption.
false
After a heart attack, fibrosis occurs at the site of cardiac muscle cell death. This reduces the efficiency of the heart's pumping activity because _
fibrous connective tissue is incapable of contracting
Your instructor gives you an unknown organ for you to examine and identify through microscopy. What should you do first with the sample?
fix it w preservative
Which of the following is NOT a step in tissue repair?
formation of new stem cells
Which cells are commonly found wedged between simple columnar epithelial cells?
goblet
Which of the following would be of most importance to goblet cells and other glandular epithelia?
golgi aparatus
Choose which tissue type likely functions to add support to an organ.
hyaline cartilage
The first step in tissue repair involves ________.
inflammation
Heart muscle cells would tend to separate without ______
intercalated disc
A ciliated version of pseudostratified columnar epithelium containing mucus-secreting goblet cells ___
lines most respiratory tract
Which of the following is NOT a manner in which any epithelial tissue is classified?
location
An exocrine gland that has an unbranched duct would be classified as a ___
multicellular simple gland
Which of the following are INCORRECTLY paired?
muscle; endoderm
epithelium appears to have two or three layers of cells, but all the cells are in contact with the basement membrane.
pseudostratified columnar
Functions of connective tissues include binding, support, insulation, and protection.
t
Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which epithelial tissue?
simple columnar
You observe a tissue under a microscope. There appears to be a lumen on one side of the tissue. Lining this lumen, the cells seem to have long, fingerlike projections. Beneath the projections, the cells seem to have the shape of shoeboxes and are packed tightly together. What type of tissue are you looking at?
simple columnar epithelia
Which of the following epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?
simple squamous
Which tissue type is formed by many cells joining together, each contributing a nucleus?
skeletal muscle
Under a microscope you observe a tissue that appears to have long fibers that appear striated. The nuclei are pushed off to the side of the fibers. The tissue looks very vascular. What type of tissue are you observing?
skeletal muscle tissue
Which tissue in the wall of the uterus is required for labor contractions?
smooth muscle
Injured cartilage might heal more quickly if a treatment were discovered that would __________.
stimulate with bld vessels develop within cartilage
Which of the following epithelial tissue types is NOT correctly matched to its function?
stratified squameos epithe. absorbtion
A many-layered epithelium with cuboidal basal cells and flat cells at its surface would be classified as ________.
stratified squamous
many-layered epithelium with cuboidal basal cells and flat cells at its surface would be classified as _______
stratified squamous
Groups of cells that are similar in structure and perform a common or related function form a(n) _______
tissue
All epithelia have two surfaces, an apical surface and a basal surface, that differ in both structure and function. This property is called polarity.
true
Smooth muscle ________
under involuntary control
Which statement best describes connective tissue?
usually contains large amount of matrix
Chondroblasts ________.
within cartilage divide secrete matrix
