Epithelial Tissue: Types, Characteristics, and Functions

<p>Epithelial cells cover surfaces, while endothelial cells line vessels. (A)</p> Signup and view all the answers

<p>The tissue is likely under stress or undergoing repair. (D)</p> Signup and view all the answers

<p>The gliding of surface layer cells, facilitating the replacement of dead cells. (C)</p> Signup and view all the answers

<p>By enabling the detection of external stimuli through nerve endings within the tissue. (D)</p> Signup and view all the answers

<p>The avascular nature of epithelial tissue, requiring nutrient and waste exchange via diffusion from connective tissue. (A)</p> Signup and view all the answers

<p>By allowing the bladder to expand and contract as it fills and empties without compromising its barrier function. (B)</p> Signup and view all the answers

<p>Epithelial tissue containing no neurons. (C)</p> Signup and view all the answers

<p>Simple Squamous Epithelium (D)</p> Signup and view all the answers

<p>To protect against abrasion and damage in the epidermis and to replace cells lost during absorption in the intestines. (B)</p> Signup and view all the answers

<p>Conjunctiva lining the eyelids (C)</p> Signup and view all the answers

<p>Pseudostratified Columnar Epithelium (A)</p> Signup and view all the answers

<p>It can stretch and expand to accommodate changes in urine volume. (D)</p> Signup and view all the answers

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

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

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

<p>Allowing flexibility during swallowing (A)</p> Signup and view all the answers

<p>It lacks blood vessels (avascular) which inhibits nutrient and immune cell access. (B)</p> Signup and view all the answers

<p>Keratinized cellular structure (D)</p> Signup and view all the answers

<p>Lining of the oral cavity (B)</p> Signup and view all the answers

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

<p>Understanding the roles of mucous membranes as barriers to pathogens (A)</p> Signup and view all the answers

<p>Stratified squamous epithelium, connective tissue (C)</p> Signup and view all the answers

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

<p>Increased bone density (D)</p> Signup and view all the answers

<p>Mineral storage and blood cell production (D)</p> Signup and view all the answers

<p>Reduced oxygen-carrying capacity of the blood (B)</p> Signup and view all the answers

<p>It can withstand compressive forces and provides stability. (C)</p> Signup and view all the answers

<p>It replaces a pre-existing cartilage model with bone, contributing to the bone's length and structure. (B)</p> Signup and view all the answers

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

<p>Osteoblasts synthesize new bone matrix, while osteoclasts break down old bone tissue. (C)</p> Signup and view all the answers

<p>Osteoblast and osteoclast activity are relatively balanced, allowing for bone maintenance and repair. (C)</p> Signup and view all the answers

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

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

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

<p>Genetic mutation leading to malformed actin and myosin filaments (D)</p> Signup and view all the answers

<p>The muscle contains a large proportion of myosin. (B)</p> Signup and view all the answers

<p>Inability to contract (D)</p> Signup and view all the answers

<p>Skeletal muscle exhibits striations, while smooth muscle lacks striations. (C)</p> Signup and view all the answers

<p>Smooth muscle, due to its involuntary control. (D)</p> Signup and view all the answers

<p>To facilitate muscle contraction through their interaction. (D)</p> Signup and view all the answers

<p>A muscle cell contracts in response to a signal from a motor neuron. (C)</p> Signup and view all the answers

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

<p>Striated muscles' organized structure allows for quick, powerful voluntary contractions, while non-striated muscles' lack of organized structure enables sustained involuntary contractions. (B)</p> Signup and view all the answers

<p>Decreased force production by the muscle. (B)</p> Signup and view all the answers

<p>It provides a constant, slight tension in muscles for quick response to stimuli to maintain balance; it results from continuous, low-level stimulation by motor neurons. (A)</p> Signup and view all the answers

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

<p>It acts as an antagonist, producing the opposite movement to extend the elbow. (C)</p> Signup and view all the answers

Specialized connections between epithelial cells that prevent leakage.

Epithelial tissue functions in secretion, absorption, protection, transport, sensation, and movement.

Epithelial tissue is cellular, avascular, tightly packed, with a good nerve supply and rapid cell division.

Cell structures that help maintain the integrity of tissues by anchoring cells together.

Cells that form a thin layer lining blood vessels.

Tissue covering the body surfaces, both internal and external.

Avascular, sensory, gliding, and transformed ability.

Epithelial tissue lacks blood vessels, relying on diffusion.

Epithelial cells can perceive external stimuli via nerve endings.

Epithelial cells can move to replace dead cells and maintain barriers.

A type of epithelium with cilia, lining the respiratory tract.

A tissue type with two types: non-keratinized (wet surfaces) and keratinized (dead cells, keratin).

A membrane that secretes mucus, affected by histamine, lining cavities like the mouth.

Membrane with two layers (parietal and visceral) that lubricates internal cavities.

Understanding epithelial tissues aids in diagnosis, treatment, and patient care planning.

A type of epithelium with one single layer of cells.

Epithelium made of multiple layers of cells, providing protection.

Epithelium that can stretch, found in urinary organs like the bladder.

Single layer of tall cells, involved in absorption and secretion.

Avascular, aneural, alymphotic connective tissue found in various parts of the body.

There are three types: hyaline, fibrous, and elastic.

Smooth, glossy matrix with small chondrocyte groups, not easily repaired.

Dense and tough cartilage found in the knee, TMJ, and spinal disks.

Most flexible cartilage found in the ear and epiglottis; least common type.

An infection of the bone, leading to inflammation and damage.

Bone-forming cells essential for creating new bone tissue.

The process of producing red blood cells in the body.

Bones support, protect, enable movement, store minerals, produce blood cells, store energy, and help balance acid-base.

There are five categories of bones: long, short, flat, irregular, and sesamoid.

Ossification is the process by which bone is formed, essential for skeletal growth.

Bone develops directly from connective tissue, examples include skull and clavicles.

Bone replaces a cartilage model, crucial for developing long bones like femur and humerus.

The process of replacing cartilage with bone involves actions of osteoblasts and osteoclasts.

A band of fibrous tissue that can contract to produce movement.

A contractile thread of a muscle extending from end to end of the fiber.

Two filaments that make up myofibrils, crucial for muscle contraction.

The organized unit of actin and myosin that makes up myofibrils.

The ability of a muscle to shorten, generating force.

A type of muscle characterized by its striped appearance, used for voluntary movement.

Muscle tissue that lacks the striped appearance, also known as smooth muscle, mainly found in internal organs.

Muscle tissue found only in the heart, responsible for pumping blood, characterized by striations and involuntary control.

The ability to respond to a stimulus from a motor neuron or hormone.

Ability for a muscle to return to its original length after being stretched.

Ability for a muscle to bounce back to its original length after being stretched.

Coordination of bone and muscle to create human movement.

Partial contraction of a muscle.