Tissue Types and Functions

These flashcards cover key terms related to the types of tissues, their characteristics, and functions as discussed in the lecture notes.

Connective tissue

Supports, protects, and binds other tissues together.

Blood

A fluid connective tissue that transports respiratory gases, nutrients, wastes, and other substances.

Muscle tissue

Tissue that contracts to cause movement; includes skeletal, cardiac, and smooth muscle.

Epithelial tissue

Covers surfaces of the body, protects, secretes, absorbs, and filters.

Simple cuboidal epithelium

Single layer of cubelike cells with large, spherical central nuclei, involved in secretion and absorption.

Stratified squamous epithelium

Thick epithelium composed of layers for protection against abrasion.

Exocrine glands

Glands that secrete onto a surface through a duct.

Endocrine glands

Glands that secrete hormones directly into the bloodstream.

Merocrine glands

Glands that secrete their products by exocytosis.

Holocrine glands

Glands that rupture completely to release secretions along with cell fragments.

Apocrine glands

Glands that release secretions by pinching off the apical portion of cells.

Skeletal muscle

Muscle tissue attached to bones that facilitates movement.

Cardiac muscle

Muscle tissue found in the walls of the heart.

Smooth muscle

Muscle tissue found in walls of hollow visceral organs.

Tissue classification

Can be classified by number of layers (simple or stratified) and shape (squamous, cuboidal, or columnar).

Keratinized epithelium

A type of stratified squamous epithelium with a layer of dead cells full of keratin.

Nonkeratinized epithelium

A type of stratified squamous epithelium that remains moist.