38 Questions
Which tissue type covers the body's surfaces and lines its cavities?
Epithelial tissue
What is the primary function of connective tissue?
To support the body
Which type of tissue is responsible for body movements?
Muscle tissue
What is the role of nervous tissue in the body?
To control and coordinate body activities
What does SEM provide?
Three-dimensional pictures of unsanctioned tissue surfaces
What are the steps for preparing tissue for microscopic viewing?
Fixing, cutting into thin sections, and staining
What are the functions of epithelium?
Protection, absorption, and secretion
What are the distinguishing characteristics of epithelial tissues?
Polarity and specialized contacts
How are epithelial tissues supported?
By connective tissue
What is the regenerative capacity of epithelium?
High regenerative capacity
How is epithelial tissue classified?
By number of layers and shape
What are the common shapes of epithelial cells?
Squamous, cuboidal, and columnar
What do glandular epithelia consist of?
Cells that make and secrete a particular product
How are glands classified?
By where they release their product and whether they are unicellular or multicellular
Which type of tissue is responsible for body movement?
Muscle tissue
Which type of tissue forms delicate networks around small blood vessels and supports the soft tissue of organs?
Connective tissue
What are the three kinds of muscle tissue?
Skeletal, cardiac, and smooth
What is the main component of the nervous system?
Neurons
Which membrane consists of a keratinized stratified squamous epithelium firmly attached to a thick layer of connective tissue?
Cutaneous membrane
Where are mucous membranes found?
In body cavities open to the outside of the body
What brings about movement or contraction in all cell types?
Myofilaments
What is skeletal muscle often referred to as?
Voluntary muscle
What are the resident cell types in each major class of connective tissue?
Immature and mature cells
Which type of tissue is home to cell types such as adipocytes, white blood cells, mast cells, and macrophages?
Connective tissue
What are the moist membranes found in closed ventral body cavities called?
Serosa membranes
What is an exception to the generalization of resident cell type in blood, a major class of connective tissue?
White blood cells
Which type of glands release hormones into the blood or lymphatic fluid to prompt specific target organs to respond?
Endocrine glands
What is the main function of connective tissue?
Binding and supporting
Which type of glands release their products onto body surfaces or into body cavities?
Exocrine glands
What is the only true example of holocrine glands?
Sebaceous (oil) glands
Which type of glands secrete products by exocytosis?
Merocrine glands
What is the most abundant and widely distributed tissue in the body?
Connective tissue
What separates the living cells of connective tissue?
Nonliving extracellular matrix
From which embryonic tissue do all connective tissues arise?
Mesenchyme
What are the main components of connective tissues?
Ground substance, fibers, and cells
Which type of glands accumulate products until they rupture?
Holocrine glands
Which type of glands release their products through unicellular or multicellular glands?
Exocrine glands
What is the range of secretions from endocrine glands?
Modified amino acids to steroids
Study Notes
Endocrine Glands and Exocrine Glands
- Endocrine glands release hormones into the blood or lymphatic fluid to prompt specific target organs to respond.
- Endocrine glands are structurally diverse and their secretions range from modified amino acids to steroids.
- Exocrine glands release their products onto body surfaces or into body cavities through unicellular or multicellular glands.
- Glandular epithelia can be simple or compound and are further categorized by their secretory units as tubular, alveolar, or tubuloalveolar.
- Merocrine glands secrete products by exocytosis, while holocrine glands accumulate products until they rupture.
- Sebaceous (oil) glands are the only true example of holocrine glands.
- Connective tissue is the most abundant and widely distributed tissue in the body.
- There are four main classes of connective tissue: connective tissue proper, cartilage, bone, and blood.
- Connective tissue functions include binding and supporting, protecting, insulating, storing reserve fuel, and transporting substances within the body.
- Connective tissues consist largely of nonliving extracellular matrix, which separates the living cells of the tissue.
- All connective tissues arise from mesenchyme, an embryonic tissue.
- Connective tissues have three main components: ground substance, fibers, and cells. Ground substance has interstitial fluid, cell adhesion proteins, and proteoglycans.
Test your knowledge of endocrine and exocrine glands as well as connective tissues with this quiz. Explore the functions, structures, and classifications of glands and learn about the diverse components and functions of connective tissues in the body.
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