Biology Chapter: Connective Tissues

<p>Membrane proteins from adjacent cells (C)</p> Signup and view all the answers

<p>Tight junctions form seals, while gap junctions allow molecular exchange (C)</p> Signup and view all the answers

<p>It has fibers arranged in parallel bundles. (C)</p> Signup and view all the answers

<p>Dense collagen connective tissue (B)</p> Signup and view all the answers

<p>It contains mostly collagen fibers arranged in random orientations. (A)</p> Signup and view all the answers

<p>Adipose cells (C)</p> Signup and view all the answers

<p>Offering tensile strength and resistance to stretching. (A)</p> Signup and view all the answers

<p>Apical surface (C)</p> Signup and view all the answers

<p>Specialized contacts (D)</p> Signup and view all the answers

<p>Avascular but innervated (D)</p> Signup and view all the answers

<p>Glandular epithelium (C)</p> Signup and view all the answers

<p>Increase surface area (A)</p> Signup and view all the answers

<p>High regenerative capacity (C)</p> Signup and view all the answers

<p>Hemidesmosomes (D)</p> Signup and view all the answers

<p>Noncellular layer adjacent to basal surface (D)</p> Signup and view all the answers

<p>Muscle contraction (B)</p> Signup and view all the answers

<p>Supported by connective tissues (A)</p> Signup and view all the answers

<p>By diffusion from underlying connective tissues (A)</p> Signup and view all the answers

<p>Columnar (D)</p> Signup and view all the answers

<p>Specialized contacts (D)</p> Signup and view all the answers

<p>Reinforces the epithelial sheet (C)</p> Signup and view all the answers

<p>It contains flattened, dead keratinocytes. (C)</p> Signup and view all the answers

<p>Keratinization begins and organelles disintegrate. (A)</p> Signup and view all the answers

<p>The stratum lucidum is above the stratum granulosum. (A)</p> Signup and view all the answers

<p>They are too far from dermal capillaries to survive. (B)</p> Signup and view all the answers

<p>They slow water loss from the skin. (B)</p> Signup and view all the answers

<p>Protects deeper cells from environmental damage (C)</p> Signup and view all the answers

<p>Reticular layer (C)</p> Signup and view all the answers

<p>Exocrine glands (D)</p> Signup and view all the answers

<p>Enhance gripping ability and contribute to the sense of touch (A)</p> Signup and view all the answers

<p>Merocrine secretion (C)</p> Signup and view all the answers

<p>Viscous, fatty sweat (D)</p> Signup and view all the answers

<p>Fibroblasts (C)</p> Signup and view all the answers

<p>Water, salts, and vitamin C (A)</p> Signup and view all the answers

<p>Synthesis of vitamin C (D)</p> Signup and view all the answers

<p>Light touch (B)</p> Signup and view all the answers

<p>Cradle cap (B)</p> Signup and view all the answers

<p>Areolar connective tissue (C)</p> Signup and view all the answers

<p>It turns into a blackhead (B)</p> Signup and view all the answers

<p>Exocrine glands secrete products into ducts. (A)</p> Signup and view all the answers

<p>Mucous cells (D)</p> Signup and view all the answers

<p>Apocrine (C)</p> Signup and view all the answers

<p>Cytes (B)</p> Signup and view all the answers

<p>Digesting food (C)</p> Signup and view all the answers

<p>Unstructured material filling spaces between cells (D)</p> Signup and view all the answers

<p>Products are secreted by exocytosis as produced (B)</p> Signup and view all the answers

<p>Collagen fibers (A)</p> Signup and view all the answers

<p>Blood (A)</p> Signup and view all the answers

<p>Salivary glands (A)</p> Signup and view all the answers

<p>Mature connective tissue cells (A)</p> Signup and view all the answers

<p>Fill spaces between cells (B)</p> Signup and view all the answers

<p>Compound gland (A)</p> Signup and view all the answers

<p>Embryonic tissue (C)</p> Signup and view all the answers

Ability of organisms to form tissues and organs.

Channels formed by membrane proteins for cell-to-cell communication.

Water-tight seals between cell membranes formed by proteins.

Protein connections linking cytoskeletons of adjacent cells.

Specialized cell connections (junctions) enabling interactions and forming complex structures.

A type of connective tissue made of reticular fibers, found in specific locations like the spleen and lymph nodes.

A type of connective tissue with tightly packed, parallel collagen fibers. It provides strength and resilience to resist pulling forces.

A type of connective tissue with interwoven, randomly arranged collagen fibers. It provides strength and support in many directions.

A type of dense connective tissue with abundant elastin fibers, allowing it to stretch and recoil.

A type of dense connective tissue with both elastin and collagen fibers. It combines tensile strength and stretching capabilities.

Epithelial cells have distinct apical and basal surfaces, with different structures and functions.

Cells are tightly packed and form continuous sheets.

Epithelia are supported by connective tissue layers, particularly the basement membrane.

Epithelial tissues have high regenerative capacity.

Epithelial tissues lack blood vessels, obtaining nutrients by diffusion.

Protection, absorption, filtration, excretion, secretion, and sensory functions.

The basement membrane consists of the basal lamina and reticular lamina.

The basal lamina is a layer of glycoproteins and collagen fibers.

The reticular lamina is a supportive layer adjacent to the basal lamina.

Epithelial cells have apical and basal surfaces, different in structure and function.

Tight junctions and desmosomes connect and hold adjacent epithelial cells together.

Outer covering of the skin and internal organs, inner linings of internal tubes and cavities.

Regions of glands that secrete materials.

Epithelial tissues are classified by the number of cell layers and the shape of the cells.

A thin, clear layer of flattened, dead cells found only in thick skin. It's responsible for starting the keratinization process and accumulating a water-resistant glycolipid to prevent water loss.

The process by which cells in the stratum lucidum accumulate keratin fibers, making the skin tough and resilient.

Granules in the stratum lucidum that release a water-resistant glycolipid, preventing water loss from the skin.

Cells in the stratum lucidum are too far from the dermal capillaries, which supply nutrients and oxygen, leading to their death.

Glands that release hormones directly into the bloodstream or lymph, targeting specific organs.

Glands that release secretions onto body surfaces (skin) or into body cavities through ducts.

Single-celled glands that produce and secrete mucus, found in epithelial linings like the intestines and respiratory tract.

A protein that dissolves in water to form mucus, a protective, lubricating coating.

Glands composed of a duct and a secretory unit, surrounded by supportive connective tissue.

Multicellular exocrine glands with an unbranched duct.

Multicellular exocrine glands with a branched duct.

Most common type of secretion, where products are released by exocytosis as they're produced.

Secretion where products accumulate within the cell and then the cell bursts to release them.

Secretion where products accumulate within the cell, but only the apex ruptures to release them.

The most abundant and widely distributed connective tissue, with a diverse array of functions.

The unstructured material that fills the spaces between cells in connective tissue, allowing solute diffusion.

Structural elements in connective tissue, providing support and strength.

The living components of connective tissue, responsible for producing and maintaining the extracellular matrix.

Immature, mitotically active cells that produce the matrix of connective tissue.

The outermost layer of the epidermis, composed of 20-30 rows of flat, dead, keratinized cells.

Dead cells filled with keratin, a protein that provides strength and waterproofing.

Fingerlike projections from the dermis that extend into the epidermis. They contain capillaries, nerves, and touch receptors.

Epidermal ridges that lie atop dermal papillae in thick skin. They form fingerprints.

The collective term for dermal ridges, which enhance grip and contribute to the sense of touch.

Lines in the skin that indicate the direction of collagen fibers in the reticular layer. They are important for surgeons.

Silvery-white scars caused by extreme stretching of the dermis.

A fluid-filled pocket that separates the epidermis and dermis due to trauma.

Touch receptors located in the upper dermis, responsible for light touch.

Stretch receptors located deeper in the dermis, responsible for stretch and warmth.

Deep receptors in the dermis, responsible for detecting vibration and deep pressure.

Touch receptors located in the upper layers of the skin near the dermis, responsible for sense of touch.

Glands widely distributed over the body, secreting oily sebum into hair follicles.

Oily secretion from sebaceous glands, providing lubrication and protection.

Inflammatory condition of the sebaceous glands, often caused by the bacterium Propionibacterium acnes.

Inflammation of the sebaceous glands in infants, causing scalp scaling and flaking.

The most numerous sweat glands, found all over the body, responsible for thermoregulation.

Sweat glands located in axillary and anogenital regions, activated at puberty, and releasing a thicker sweat.