Anatomy

How does the structure of skeletal muscle relate to its function?

• Skeletal muscle fibers are short and smooth, allowing for involuntary contractions.

• Skeletal muscle fibers are long and striated, allowing for powerful and voluntary contractions.

• Skeletal muscle fibers are thick and non-striated, allowing for slow and involuntary contractions.

• Skeletal muscle fibers are thin and elastic, allowing for quick and involuntary contractions.

What is the role of goblet cells in epithelial tissue?

• Goblet cells secrete hormones that regulate cell growth.

• Goblet cells secrete mucus, which lubricates and protects the epithelial surface.

• Goblet cells absorb nutrients from the epithelial surface.

• Goblet cells provide structural support to the epithelial tissue.

What is Epithelial tissue?

• A type of tissue that covers body surfaces, lines cavities and organs, and forms glands. It is characterized by closely packed cells with minimal extracellular matrix.

• A type of tissue that supports and connects other tissues in the body.

• A type of tissue that is responsible for the contraction and movement of body parts.

• A type of tissue that transmits electrical signals throughout the body.

What is the difference between loose and dense connective tissue?

• Loose connective tissue has a higher concentration of collagen fibers, providing strength.

• Dense connective tissue has a more flexible structure with fewer fibers.

• Loose connective tissue has a more flexible structure with fewer fibers, while dense connective tissue has a higher concentration of collagen fibers, providing strength.

• Both types of connective tissue are identical in structure.

What are the main types of muscle tissue?

• Skeletal muscle, cardiac muscle, and smooth muscle

• Skeletal muscle, elastic muscle, and cardiac muscle

• Cardiac muscle, striated muscle, and smooth muscle

• Skeletal muscle, voluntary muscle, and involuntary muscle

What is the significance of a high rate of cell division in Epithelial tissue?

• It allows for quick repair and regeneration.

• It increases the thickness of the tissue.

• It enhances the absorption of nutrients.

• It reduces the risk of infection.

What is the role of melanin in the skin?

• Melanin helps protect skin from UV radiation.

• Melanin is responsible for hair growth.

• Melanin increases skin sensitivity to sunlight.

• Melanin is a type of vitamin found in the skin.

What is the main cavity that contains most of the digestive system?

• The ventral cavity.

• The dorsal cavity.

• The thoracic cavity.

• The abdominal cavity.

What is the function of the basement membrane in Epithelial tissue?

• It anchors epithelial tissue to underlying connective tissue and provides a barrier for the exchange of materials.

• It allows for the rapid diffusion of nutrients and waste products.

• It serves as a protective layer against mechanical stress.

• It facilitates the movement of epithelial cells during tissue repair.

What adaptations are found in Simple columnar epithelial tissue?

• Cilia and basal cells

• Microvilli and goblet cells

• Squamous cells and keratin

• Stratified layers and fibroblasts