Introduction to Zoology: Quiz

Epithelial Tissues

• The epithelial tissue responsible for protecting the skin is the epithelium.
• Elevation of sex hormones in epithelia leads to hypertrophy.
• Examples of merocrine glands include salivary glands, sweat glands, and pancreas.
• Epithelial tissues are characterized by:
  • close packing of cells
  • minimal intercellular substances
  • cells that are attached to each other through cell junctions
  • apical and basolateral surfaces

Connective Tissues

• The connective tissue characterized by a gelatinous matrix is mucous connective tissue.
• The primary function of connective tissues is to provide support, connect, and separate different organs and tissues.

Cartilage

• Chondrocytes in cartilage are responsible for producing and maintaining the cartilage matrix.

Zoology

• The main focus of Zoology is the study of animals and their evolution, structure, behavior, and classification.
• The main divisions of Zoology are:
  • Embryology
  • Comparative anatomy
  • Morphology
  • Ethology
  • Ecology
  • Systematics
• NOT one of the main divisions of Zoology mentioned in the text is Biotechnology.

Tissue Development

• The tissues originate from the three primary germ layers: ectoderm, endoderm, and mesoderm.

General Characteristics

• A general characteristic of epithelial tissues is that they are avascular, meaning they do not have blood vessels.
• The primary function of epithelial tissues is to form a barrier against the external environment and to regulate the exchange of substances between the external environment and the body.