ch 4 quiz Flashcards
Which of the following is NOT a characteristic of epithelial tissue?
a. It is composed of densely packed cells.
b. It stores energy reserves.
c. It is avascular.
d. It is capable of regeneration.
b. It stores energy reserves
The epithelia that line the body cavities and blood vessels is called_______.
a. simple columnar
b. simple cuboidal
c. simple squamous
d. transitional
c. simple squamous
A gland that has no ducts and secretes directly into the extracellular fluid or blood is called a(n) _____.
a. exocrine gland
b. tubular gland
c. acinar gland
d. endocrine gland
d. endocrine gland
Secretory cells of sebaceous glands fill with secretions and then rupture. Classify this type of exocrine gland.
a. It is an acinar gland.
b. It is an apocrine gland.
c. It is a holocrine gland.
d. It is a merocrine gland.
c. It is a holocrine gland
What is the functional significance of gap junctions?
a. They maintain water-tight passages.
b. They resist stretching and twisting.
c. They share ions between adjacent cells.
d. They attach to the extracellular matrix.
c. They share ions between adjacent cells
If a person has a herniated intervertebral disc, which type of cartilage has been damaged?
a. elastic cartilage
b. fibrocartilage
c. hyaline cartilage
d. areolar cartilage
b. fibrocartilage
Mesenchyme connective tissue gives rise to which tissue type(s)?
a. stratified epithelial tissues
b. smooth and cardiac muscle tissues
c. all nervous tissues
d. all connective tissues
d. all connective tissues
Why does cartilage heal so slowly?
a. It lacks a direct blood supply, which is necessary for proper healing.
b. Chondroitin sulfate prevents healing.
c. Matrix inhibits cellular regeneration.
d. Interstitial fluid, necessary for proper healing, is excluded.
a. It lacks a direct blood supply, which is necessary for proper healing.
Lack of vitamin C in the diet interferes with the ability of fibroblasts to produce collagen. What effect might this interference have on connective tissue?
a. Tissue is unable to phagocytize.
b. Tissue is unable to produce melanin.
c. Tissue is weak and prone to damage.
d. Tissue is unable to produce heparin.
c. Tissue is weak and prone to damage.
______ are classified as supporting connective tissue because ______.
a. Adipose and dense regular connective tissues; they support and cushion internal organs
b. Muscle and blood; they have the highest need for oxygen
c. Bone and cartilage; they form the framework of the body
d. B and C are correct.
c. Bone and cartilage; they form the framework of the body
Which type of connective tissue contains primarily triglycerides?
a. areolar
b. adipose
c. reticular
d. mesenchyme
b. adipose
Which two types of connective tissue have a fluid matrix?
a. lymph and cartilage
b. cartilage and bone
c. blood and bone
d. blood and lymph
d. blood and lymph
Connective tissues share three basic components. Which of the following lists these components?
a. specialized cells, extracellular fibers, and ground substance
b. mast cells, adipocytes, and mesenchymal cells
c. macrophages, elastic fibers, and collagen fibers
d. none of the above
a. specialized cells, extracellular fibers, and ground substance
Many allergy sufferers take antihistamines to relieve their allergy symptoms. Which type of cell produces the molecules that this medication blocks?
a. eosinophils
b. mast cells
c. basophils
d. both B and C
d. both B and C
Exfoliative cytology is the study of cells that shed or are removed from an epithelial surface. Which of the below would NOT be an example of exfoliative cytology?
a. when a doctor performs amniocentesis
b. when a sample of stomach fluid is analyzed
c. when a doctor performs a bone biopsy
d. when a pap smear is performed
c. when a doctor performs a bone biopsy