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문제 1
Explain how connective tissues differ from epithelial tissues in structure and function.
문제 2
State whether each of the following describes epithelial, connective, muscle, or nervous tissue.
a. ____ECM is often the primary element.
b. ____Consists of excitable cells that are specialized for contraction.
c. ____Sheets of tightly packed cells with little ECM.
d. ____Makes up the majority of the brain and spinal cord.
e. ____Cells may be smooth or striated.
f. ____Binds, connects, supports, and transports substances throughout the body.
문제 L2.2
Vitamin C is required for the synthesis of collagen. Predict the effect that a vitamin C deficiency (a disease called scurvy) would have on bone tissue, dense regular collagenous connective tissue, dense irregular connective tissue, and cartilage. What symptoms would you expect to see from this disease?
문제 L2.5
Why do you think the rate of cell division is different for different tissues? Where in the body would you expect to find cells that have a rapid rate of division? Where might you find cells that have a slow rate of division? Explain.
문제 L2.3
Predict what would happen if the mucous membranes of the body stopped secreting mucus or if they secreted excess mucus.
문제 L2.4
Certain types of cancerous lung tumors can secrete hormones normally made by the pancreas, adrenal gland, and hypothalamus. What prevents such secretion from happening in healthy cells?
문제 L2.1
If you were to cut through epithelial tissue without penetrating the basement membrane, would you expect bleeding to occur? Why or why not?
문제 L3.B5a
Epithelial cells of the kidneys have pumps that drive the transcellular transport of sodium ions.
Is this epithelium likely to be simple or stratified? Why?
문제 L3.B6
Explain why it would be difficult for a mature multinucleate cell such as a skeletal muscle fiber to divide by mitosis.
문제 L3.A4
Imagine that a disease turns the simple epithelia of the lungs, kidney tubules, and intestines into keratinized stratified squamous epithelia. What effect would this change in form have on the functions of these tissues?
문제 L3.A3
In the disease pulmonary fibrosis, elastic fibers of the lung are destroyed and replaced with collagen fibers. Predict the effect this would have on breathing.
문제 L3.A2
In the disease scleroderma, excessive collagen, glycosaminoglycans, and glycoproteins are produced and deposited in tissues throughout the body. Predict the effects of this disease.
문제 L3.B7
Predict which organelles are likely to be abundant in cells such as fibroblasts that actively produce and secrete proteins.
문제 3a
Describe the roles of the following components of the ECM:
Collagen fibers
문제 3b
Describe the roles of the following components of the ECM:
Glycosaminoglycans
문제 3c
Describe the roles of the following components of the ECM:
Reticular fibers
문제 3d
Describe the roles of the following components of the ECM:
Proteoglycans
문제 3e
Describe the roles of the following components of the ECM:
Glycoproteins (cell-adhesion molecules)
문제 3f
Describe the roles of the following components of the ECM:
Elastic fibers
문제 4
Tight junctions make the spaces between cells____, whereas desmosomes increase the ____ of a tissue.
문제 5a
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Epithelial tissues are classified by cell shape and the number of cell layers.
문제 5b
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Epithelial tissues function in protection, immune defenses, secretion, transport, and sensation.
문제 5c
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Epithelial tissue is highly vascular.
문제 5d
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
A goblet cell is a unicellular exocrine gland that secretes mucus.
문제 5e
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Pseudostratified epithelium appears to be simple epithelium but is actually stratified.
문제 5f
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Stratified epithelia are specialized to allow substances to cross their cells rapidly.
문제 6
Match each type of epithelium with its correct location in the body.
Simple squamous
Pseudostratified columnar
Keratinized stratified
Simple columnar
Transitional
Simple cuboidal
a. Skin
b. Urinary bladder
c. Air sacs of the lungs, squamous blood vessels
d. Kidney tubules, thyroid gland
e. Respiratory passages, nasal cavity
f. Digestive tract
문제 6a
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Histology is the division of microscopic anatomy that studies the cellular level of organization.
문제 7a
Compare and contrast the following pairs of terms:
Endocrine gland and exocrine gland
문제 7b
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Keratinocytes begin life in the stratum corneum and gradually are pushed into the stratum basale.