Multiple Choice Questions

Injured cartilage might heal more quickly if a treatment were discovered that would __________.
  • Endocrine glands have no ducts*Endocrine glands secrete substances (hormones) into blood without the use of ducts, whereas exocrine glands use ducts to secrete substances into the external environment.
  • Simple squamous epithelium*Yes, this single layer of squamous cells is ideal for the diffusion of gases in the lungs
  • Stimulate blood vessels to develop within cartilage*Cartilage is normally avascular, so nutrients required for healing must diffuse from distant blood vessels, which delays the healing process
  • Simple cuboidal epithelium*Yes, the simple cuboidal cells line the kidney tubules (nephrons) so that secretion and absorption can take place.
T/F 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
  • False
Which of the following statements is INCORRECT?A.) Simple squamous epithelia are associated with filtration and exchange.B.) Simple columnar epithelia are associated with absorption and secretion.C.) Stratified squamous epithelia are found in areas subjected to wear and tear.D.) Simple cuboidal epithelia are found in areas that stretch.
  • D.) Simple cuboidal epithelia are found in areas that stretch.*This statement is false, so it is the correct answer. Transitional (not simple cuboidal) epithelia are found in areas that stretch, in particular the ureters and urinary bladder. Simple cuboidal epithelia are adapted for absorption and secretion. We find that most glands consist of cuboidal epithelia.
  • Dense connective tissue includes a great deal of collagen
  • Absorption
  • Stratified squamous epithelium: absorption
The proximal tubule of the nephron (kidney tubule) in the kidney is composed of which type of epithelium?
  • Simple cuboidal epithelium*Yes, the simple cuboidal cells line the kidney tubules (nephrons) so that secretion and absorption can take place.
  • Stratified squamous epithelium*Yes, this epithelium protects underlying tissues from the wear and tear of constant swallowing in the esophagus.
  • Simple squamous epithelium*Yes, this single layer of squamous cells is ideal for the diffusion of gases in the lungs
  • Stimulate blood vessels to develop within cartilage*Cartilage is normally avascular, so nutrients required for healing must diffuse from distant blood vessels, which delays the healing process
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 cuboidal epithelium*Yes, the simple cuboidal cells line the kidney tubules (nephrons) so that secretion and absorption can take place.
  • Connective Tissue*It is not muscle tissue because there is a lot of nuclei present. You are probably looking at dense regular connective tissue. Connective tissue has a low cell count compared to the extracellular matrix.
  • Simple squamous epithelium*Yes, this single layer of squamous cells is ideal for the diffusion of gases in the lungs
  • Simple columnar epithelia*The shoebox represents the columnar shape. Additionally, the fingerlike projections are likely to be microvilli
What function do transitional epithelia have?
  • Stretching*Transitional epithelium is found in the urinary system. It lines the ureters, bladder, and proximal part of the urethra--organs that are subjected to distention or stretching as urine passes through or fills them
  • Epithelium*Epithelia have polarity, which is to say that there is directionality. There is always an exposed surface and an attached surface. Epithelia are also avascular.
  • Cardiac muscle and nervous tissue in the brain and spinal cord*Cardiac muscle and the nervous tissue in the brain and spinal cord have virtually no functional regenerative capacity, and they are routinely replaced by scar tissue
  • Stratified squamous epithelium*Yes, this epithelium protects underlying tissues from the wear and tear of constant swallowing in the esophagus.
Which tissue type consists of a sheet of cells that covers a body surface or lines a body cavity?
  • Epithelial
  • Epithelial tissue is innervated.
  • Bone; osteoblast
  • Location
Which part of the neuron (a specialized nerve cell) receives signals from other cells and is also the main metabolic region of the neuron?
  • Cardiac muscle and nervous tissue in the brain and spinal cord*Cardiac muscle and the nervous tissue in the brain and spinal cord have virtually no functional regenerative capacity, and they are routinely replaced by scar tissue
  • Water, since it makes up to 80% of cartilage's content and helps cushion articular bone surfaces
  • Soma*Yes, the soma or cell body receives inputs (signals) from other cells and sends the information to the axon. But unlike a dendrite, it also is the main metabolic and nutritional center of the cell.
  • Skeletal*Yes, skeletal muscle cells are elongated and many can be quite long; therefore, they have multiple nuclei
You observe a uniform tissue under a microscope. There is no lumen. The material looks densely packed, but you do not observe many nuclei. It appears that there are strands of fibers running in parallel directions. What type of tissue are you looking at?
  • Connective tissues high in collagen fibers
  • Soma*Yes, the soma or cell body receives inputs (signals) from other cells and sends the information to the axon. But unlike a dendrite, it also is the main metabolic and nutritional center of the cell.
  • Connective Tissue*It is not muscle tissue because there is a lot of nuclei present. You are probably looking at dense regular connective tissue. Connective tissue has a low cell count compared to the extracellular matrix.
  • Simple columnar epithelia*The shoebox represents the columnar shape. Additionally, the fingerlike projections are likely to be microvilli
Which of the three muscle cell types has multiple nuclei?
  • Skeletal*Yes, skeletal muscle cells are elongated and many can be quite long; therefore, they have multiple nuclei
  • Stratified squamous epithelium: absorption
  • Dense connective tissue includes a great deal of collagen
  • Cardiac*Yes, cardiac cells, like skeletal cells, have visible striations but are not under voluntary control
Which survival need shortage would most affect articular cartilage's ability to rebound after joint compression, and why does it have this effect?
  • Greater amount of extracellular matrix compared to cellular content
  • Cardiac*Yes, cardiac cells, like skeletal cells, have visible striations but are not under voluntary control
  • Water, since it makes up to 80% of cartilage's content and helps cushion articular bone surfaces
  • Soma*Yes, the soma or cell body receives inputs (signals) from other cells and sends the information to the axon. But unlike a dendrite, it also is the main metabolic and nutritional center of the cell.
Which tissues have little to no functional regenerative capacity?
  • Cardiac muscle and nervous tissue in the brain and spinal cord*Cardiac muscle and the nervous tissue in the brain and spinal cord have virtually no functional regenerative capacity, and they are routinely replaced by scar tissue
  • Epithelium*Epithelia have polarity, which is to say that there is directionality. There is always an exposed surface and an attached surface. Epithelia are also avascular.
  • Soma*Yes, the soma or cell body receives inputs (signals) from other cells and sends the information to the axon. But unlike a dendrite, it also is the main metabolic and nutritional center of the cell.
  • Cardiac*Yes, cardiac cells, like skeletal cells, have visible striations but are not under voluntary control
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Multiple Choice Questions
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