chapter 4
CHAPTER 4 – BSC2085C
The wall of the alveolus (air sac) in the lung is composed of which type of epithelium? simple squamous epithelium Yes, this single layer of squamous cells is ideal for the diffusion of gases in the lungs.
1) 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.
2) The epithelium of the esophagus is composed of which type of epithelial tissue? stratified squamous epithelium Yes, this epithelium protects underlying tissues from the wear and tear of constant swallowing in the esophagus.
3) Which part of the neuron (a specialized nerve cell) receives signals from other cells and is also the main metabolic region of the neuron? 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.
4) 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.
5) Which muscle cell type has visible striations but is not under voluntary control? Cardiac Yes, cardiac cells, like skeletal cells, have visible striations but are not under voluntary control.
6) Groups of cells that are similar in structure and perform a common or related function form a(n) ________. Tissue
7)
Choose the answer that shows the correct order for the standard preparation of a histological specimen. (1) fixation, (2) sectioning, (3) staining
8) What do the glands shown in A and B both have in common? Both are exocrine glands.
9) Which of the following glands might utilize the secretory mechanism and duct structure shown in A?
salivary
10) Which of the following cellular processes is portrayed in A?
exocytosis
11) What
The wall of the alveolus (air sac) in the lung is composed of which type of epithelium? simple squamous epithelium Yes, this single layer of squamous cells is ideal for the diffusion of gases in the lungs.
1) 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.
2) The epithelium of the esophagus is composed of which type of epithelial tissue? stratified squamous epithelium Yes, this epithelium protects underlying tissues from the wear and tear of constant swallowing in the esophagus.
3) Which part of the neuron (a specialized nerve cell) receives signals from other cells and is also the main metabolic region of the neuron? 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.
4) 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.
5) Which muscle cell type has visible striations but is not under voluntary control? Cardiac Yes, cardiac cells, like skeletal cells, have visible striations but are not under voluntary control.
6) Groups of cells that are similar in structure and perform a common or related function form a(n) ________. Tissue
7)
Choose the answer that shows the correct order for the standard preparation of a histological specimen. (1) fixation, (2) sectioning, (3) staining
8) What do the glands shown in A and B both have in common? Both are exocrine glands.
9) Which of the following glands might utilize the secretory mechanism and duct structure shown in A?
salivary
10) Which of the following cellular processes is portrayed in A?
exocytosis
11) What