Copy of Chapter 3 - Tissues

What are the four main tissue types in the human body?

Epithelial, Connective, Muscle, Nervous.

What is the function of epithelial tissue?

Protection, secretion, absorption.

What are the three types of muscle tissue?

Skeletal, Cardiac, Smooth.

What is the main characteristic of epithelial tissue?

Closely packed cells and avascular.

What are the types of cell junctions in epithelial tissue?

Tight junctions, anchoring junctions, gap junctions.

What type of epithelial tissue is one layer thick?

Simple epithelial tissue.

What is the difference between endocrine and exocrine glands?

Endocrine glands are ductless and secrete hormones into the bloodstream, while exocrine glands have ducts and secrete onto surfaces.

What type of connective tissue provides structural support?

Supportive connective tissue (e.g., cartilage and bone).

What are the components of the extracellular matrix in connective tissue?

Ground substance and protein fibers.

What are the three types of protein fibers found in connective tissue?

Collagen, elastic, and reticular fibers.

What type of muscle tissue is found in the heart?

Cardiac muscle.

What are the two main cell types in nervous tissue?

Neurons and neuroglia.

What is the main function of nervous tissue?

Conducts electrical impulses and processes information.

What is the inflammation response characterized by?

Redness, swelling, heat, and pain.

What happens during the healing process of tissue injury?

Clotting, formation of granulation tissue, and regeneration/scarring.

What is a characteristic of skeletal muscle?

Striated and voluntary.

What function do red blood cells (RBCs) serve?

Transport oxygen in the blood.

What type of cartilage is found in the nose and trachea?

Hyaline cartilage.

Which epithelial tissue type provides protection, such as in the skin?

Stratified squamous epithelium.

What is a notable effect of aging on tissues?

Reduced regeneration and increased scarring.