Epithelial cells whose apical surfaces are covered with microvilli are most likely
A) transportation specialists
B) located in the digestive or urinary tract
C) sites of absorption and secretion
D) all of the above
2
In body regions where mechanical stresses are severe, one would most likely encounter which type of epithelium?
A) nonkeratinized stratified squamous
B) keratinized stratified squamous
C) stratified columnar
D) stratified cuboidal
3
Although its main function is protection, ____________ epithelium also serves a secretory function by lining the larger ducts of most exocrine glands.
A) nonkeratinized stratified squamous
B) keratinized stratified squamous
C) stratified columnar
D) stratified cuboidal
4
Of all the body's organ systems, the ____________ system is the most directly associated with ductless glands.
A) integumentary
B) digestive
C) endocrine
D) cardiovascular
5
Unicellular exocrine glands produce
A) serous fluid
B) mucin
C) hormones
D) saliva
6
Which exocrine glands do not have ducts?
A) simple acinar
B) compound tubular
C) serous
D) goblet cells
7
If, as some argue, lactation involves both merocrine and apocrine secretion, then milk would contain
A) cytoplasm as well as exocytotic products
B) remnants of plasma membranes from mammary gland cells
C) a mixture similar to that produced by the pancreas
D) the same type of secretion as sebaceous glands
8
Looking at a microscopic slide, you see a sheet of tissue one cell thick, lining an open space. The tissue must be
A) a cuboidal epithelium
B) a simple epithelium
C) reticular connective tissue
D) skeletal muscle
9
A tissue section containing successive layers of smooth muscle, connective tissue, and transitional epithelium could be from the wall of the
A) heart
B) stomach
C) urinary bladder
D) small intestine
10
Among the following, which has the fewest cells per unit volume?
A) dense connective tissue
B) nervous tissue
C) simple columnar epithelium
D) smooth muscle
11
Which of the following tissues is typically most closely associated with epithelia?
A) dense connective
B) cartilage
C) areolar
D) smooth muscle
12
Which two tissues compose most of the integumentary system?
A) elastic connective tissue and pseudostratified columnar epithelium
B) dense irregular connective tissue and stratified squamous epithelium
C) reticular connective tissue and transitional epithelium
D) elastic connective tissue and stratified squamous epithelium
13
Connective tissues perform all of the following functions except
A) establishing the body's structural framework
B) defending the body from pathogens
C) transporting fluids and storing energy reserves
D) conducting electrical impulses
14
____________ connective tissue is most similar to areolar, but is unique among connective tissues in having relatively little extracellular matrix.
A) reticular
B) dense regular
C) dense irregular
D) adipose
15
Which of the following selections includes only wandering cells that may occur in connective tissue proper?
A) fibroblasts and macrophages
B) mast cells, neutrophils, and free macrophages
C) mesenchyme cells and adipocytes
D) leukocytes and their phagocytic derivatives
16
Although you are not likely to see them, many fixed macrophages and fibroblasts reside in ____________ connective tissue.
A) reticular
B) dense regular
C) adipose
D) all of the above
17
Which structures may be composed of either elastic or dense regular connective tissue?
A) tendons
B) menisci
C) ligaments
D) none of the above
18
Of all the connective tissues, which one contains the fewest blood vessels?
A) cartilage
B) bone
C) dense regular connective tissue
D) dense irregular connective tissue
19
All of the following are unique features of cardiac muscle except
A) occurs only in the myocardium
B) cells are connected by gap junctions
C) is both striated and involuntary
D) contains intercalated discs
20
In some women, the vaginal lining transforms after puberty from simple columnar to stratified squamous epithelium. This is an example of
A) hypertrophy
B) metaplasia
C) neoplasia
D) atrophy
21
The most plausible explanation for the "smoker's cough" that develops when the tracheal epithelium changes from pseudostratified columnar to stratified squamous is that
A) this change is accompanied by tumors that irritate the upper respiratory tract
B) stratified squamous epithelium secretes more mucin than pseudostratified columnar
C) the stratified squamous epithelium has no cilia to remove accumulating mucus
D) the two events are unrelated
22
A defective gene on chromosome 15 causes Marfan syndrome, a suite of health problems stemming from abnormalities in
A) fibrillin, collagen, and elastin
B) proteins in the matrix of connective tissues
C) both of the above
D) neither a nor b
23
If a person continues to overeat, liposuction may not be a permanent solution to excess weight because of
A) lipogenesis by remaining adipocytes
B) production of adipocytes from stem cells
C) subsequent division of adipocytes
D) both a and b
24
Crackling sounds within swollen, necrotic muscle tissue are a symptom of ____________ gangrene.
A) intestinal
B) gas
C) wet
D) dry
25
Which of the four principal tissue types develops embryonically from all three primary germ layers?
A) epithelial
B) connective
C) muscle
D) nervous