Download Lab No. 3 The tissues and the integumentary system I. Fill in

Lab No. 3
The tissues and the integumentary system
I. Fill in the blanks in the following statements.
1. The four types of tissues are_________, _____________,______________, and______________.
2. Epithelial tissue tends to be classified according to two criteria:
___________________and__________________ .
3. Most organs contain several different types of ______________________________
4. Pseudostratified ciliated columnar epithelium contains cells that appear to be ______________ , have
projections called _______________________.
5. Connective tissue cells are widely separated by a __________________that usually contains
_________________
6. Both cartilage and blood are classified as ______________tissue.
7. The most common sweat glands that release a watery secretion are ____________ sweat glands;
modified sweat glands in the ear are _____________glands; sweat glands located in the axillae, groin,
areolae, and beards of males and that release a slightly viscous, lipid-rich secretion are
_________________ sweat glands.
II. Match the following epithelial tissues to their descriptions:
(a) contains a single layer of flat cells; found in the body where filtration (kidney) or diffusion (lungs) are
priority processes
(b) found in the superficial part of skin; provides protection from heat, microbes, and chemicals
(c) contains cube-shaped cells functioning in secretion and absorption
(d) lines the lower respiratory tract and uterine tubes; wavelike motion of cilia propels materials through the
lumen
(e) contains cells with microvilli and goblet cells; found in linings of the digestive, reproductive, and urinary
tracts
(f) found in the urinary bladder; contains cells that can change shape (stretch or relax)
(g) contains cells that are all attached to the basement membrane, although some do not reach the surface;
those cells that do extend to the surface secrete mucus or contain cilia
(h) a fairly rare type of epithelium that has a mainly protective function
(1) pseudostratified ciliated columnar epithelium
(2) ciliated simple columnar epithelium
(3) transitional epithelium
(4) simple squamous epithelium
(5) simple cuboidal epithelium
(6) nonciliated simple columnar epithelium
(7) stratified cuboidal epithelium
(8) keratinized stratified squamous epithelium
III. For each of the following items, indicate the tissue type with which they are associated. Use E for
epithelial tissues, C for connective tissues, M for muscle tissues, and N for nervous tissue.
(a) bind, support
(b) contains elongated cells that generate force
(c) neuroglia
(d) avascular
(e) may contain fibroblasts
(f) tightly packed cells
(g) intercalated discs
(h) goblet cells
(i) contain extracellular matrix
( j) striated
(k) generate action potentials
(l) cilia
(m) ground substance
(n) apical surface
(o) excitable
IV. Match the following connective tissues to their descriptions:
(a) the tissue from which all other connective tissues eventually arise
(b) connective tissue with a clear, liquid matrix that flows in lymphatic vessels
(c) connective tissue consisting of several kinds of cells, containing all three fiber types randomly arranged,
and
found in the subcutaneous layer deep to the skin
(d) a loose connective tissue specialized for triglyceride storage
(e) tissue that contains reticular fibers and reticular cells and forms the stroma of certain organs such as the
spleen
(f ) tissue with irregularly arranged collagen fibers found in the dermis of the skin
(g) tissue found in the lungs that is strong and can recoil back to its original shape after being stretched
(h) tissue that affords flexibility at joints and reduces joint friction
(i) tissue that provides strength and rigidity and is the strongest of the three types of cartilage
( j) bundles of collagen arranged in parallel patterns; compose tendons and ligaments
(k) tissue that forms the internal framework of the body and works with skeletal muscle to generate
movement
(l) tissue that contains a network of elastic fibers, providing strength, elasticity, and maintenance of shape;
located in
the external ear
(m) connective tissue with formed elements suspended in a liquid matrix called plasma
(1) blood
(2) fibrocartilage
(3) mesenchyme
(4) dense regular connective tissue
(5) lymph
(6) hyaline cartilage
(7) dense irregular connective tissue
(8) areolar connective tissue
(9) reticular connective tissue
(10) bone (osseous tissue)
(11) elastic connective tissue
(12) elastic cartilage
(13) adipose tissue
V. Match the organs in the key to the epithelial tissues listed in questions 1 - 4.
Key:
a. kidney tubules
b. small intestine
c. air sacs of lungs
d. trachea (windpipe)
1. simple squamous
2. simple cuboidal
3. simple columnar
4. pseudostratified ciliated columnar
VI. Match the muscle tissues in the key to the descriptions listed in questions 1 - 3.
Key:
a. skeletal muscle
b. smooth muscle
c. cardiac muscle
1. striated and branched, involuntary
2. striated and voluntary
3. visceral and involuntary
VII. True or False
_____ 1. Connective tissues derive only from mesoderm and function to bind, support, and protect body
parts.
_____ 2. Simple ciliated columnar epithelium helps to move debris through the lower respiratory tract, away
from the lungs.
_____ 3. Cells of epithelia are tightly packed, mostly avascular, and without significant matrix.
_____ 4. Nervous tissue is located only in the brain and spinal cord.
_____ 5. Neurons are capable of mitosis to accommodate increased learning.
_____ 6. Most bones in the body begin as fibrocartilage and then ossify to bone.
_____ 7. Acinar glands have a flasklike secretory portion.
_____ 8. Mast cells that produce the anticoagulant heparin are dispersed throughout loose connective
tissue.
_____ 9. Red blood cells are the only cellular component of blood tissue.
_____ 10. Based on structure and method of secretion, mammary glands are classified as compound
acinar and apocrine.
_____ 11. Transitional epithelium occurs only in the urinary system.
_____ 12. All stratified squamous epithelium is keratinized and cornified.
_____ 13. Adipose tissue dies as a person diets, and new cells are formed as weight is gained.
_____ 14. Skeletal and cardiac muscle fibers are striated.
_____ 15. Neuroglia are specialized cells of nervous tissue that react to stimuli.
VIII. Match each numbered item with the most closely related lettered item
______ 1. integument
______ 2. fingernails
______ 3. keratin
______ 4. tactile cells
______ 5. melanocytes
______ 6. keratinocytes
______ 7. epidermal dendritic cell
______ 8. subcutaneous layer
______ 9. reticular layer
______ 10. arrector pili
a. smooth muscle attached to hair follicle
b. most numerous epidermal cell
c. a phagocytic cell (active in immune response)
d. layer deep to dermis
e. formed from stratum corneum
f. receptors for touch
g. composed of epidermis and dermis
h. dense irregular connective tissue
i. fibrous protein in epidermis
j. pigment-forming cells