tissue 5

Skeletal muscle tissue is attached to bones, striated, voluntary, and provides motion, maintenance of posture, and heat production. Cardiac muscle tissue forms most of the heart wall, is striated, usually involuntary, and provides motion for the heart. Smooth (visceral) muscle tissue is found in the walls of hollow internal structures, nonstriated, usually involuntary, and provides motion for various internal structures such as constriction of blood vessels and airways.

The major cells of nervous tissue are neurons (nerve cells) and neuroglia (protective and supporting cells). Neurons mediate perception and response, are sensitive to stimuli, convert stimuli into nerve impulses, and conduct nerve impulses to other neurons, muscle fibers, or glands. Neuroglia protect and support neurons, and are often the sites of tumors of the nervous system.

Neurons consist of a cell body, dendrites, and axons. The cell body contains the nucleus and mitochondria. Dendrites receive electrical impulses and pass them to the cell body, while axons relay the impulse to another excitable cell.

<p>Nervous tissue is located throughout the body and is concentrated in the brain and spinal cord. Its function is to mediate perception and response, with neurons being sensitive to stimuli, converting stimuli into nerve impulses, and conducting nerve impulses to other neurons, muscle fibers, or glands. Neuroglia protect and support neurons, and are often the sites of tumors of the nervous system.</p> Signup and view all the answers

<p>The four types of epithelial membranes are cutaneous, mucous, serous, and synovial membranes.</p> Signup and view all the answers

<p>The mucous membrane lines cavities that open to the exterior, such as the gastrointestinal tract. It consists of an epithelial layer with exocrine glands that secrete mucus and a connective tissue layer called the lamina propria that supports the epithelial layer.</p> Signup and view all the answers

<p>Inflammation is the initial response to injury, attempting to control and limit the extent of damage and initiate repair and regenerative processes. Cancer arises from cells that have acquired a genetic abnormality or mutation, leading to uncontrolled cell growth and spread to other tissues or organs.</p> Signup and view all the answers

<p>The four signs of inflammation are redness (erythema), swelling, local heat, and pain.</p> Signup and view all the answers

<p>Acute inflammation resolves itself, but chronic inflammation can persist and lead to disease states.</p> Signup and view all the answers

<p>The serous membrane lines body cavities that do not open directly to the exterior and covers the organs within the cavity. It consists of parietal and visceral portions and secretes a lubricating serous fluid that reduces friction between organs and the walls of the cavities.</p> Signup and view all the answers

<p>The synovial membrane lines joint cavities, bursae, and tendon sheaths. It consists only of connective tissue and secretes a lubricating synovial fluid to reduce friction between movable joints and constantly exchanges water and nutrients with blood.</p> Signup and view all the answers

<p>Cancerous mutations affect key proteins involved in controlling and regulating cell division, leading to abnormal cell division and accumulation of affected cells that are not capable of forming regular tissue.</p> Signup and view all the answers

<p>Constriction of blood vessels and airways</p> Signup and view all the answers

<p>Heart wall</p> Signup and view all the answers

<p>Protect and support neurons</p> Signup and view all the answers

<p>Consist of a cell body, dendrites, and axons</p> Signup and view all the answers

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

<p>To secrete a lubricating serous fluid that reduces friction between organs and the walls of the cavities</p> Signup and view all the answers

<p>It arises from cells that have acquired a genetic abnormality or mutation</p> Signup and view all the answers

<p>Acute inflammation</p> Signup and view all the answers

<p>Redness, swelling, local heat, pain</p> Signup and view all the answers

<p>Proteins involved in controlling and regulating cell division</p> Signup and view all the answers

<p>To secrete a lubricating synovial fluid to reduce friction between movable joints</p> Signup and view all the answers

<p>Consists of an epithelial layer with exocrine glands</p> Signup and view all the answers

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

<p>Reducing friction between organs and the walls of the cavities</p> Signup and view all the answers

<p>It lines joint cavities, bursae, and tendon sheaths</p> Signup and view all the answers

<p>Redness, swelling, local heat, and pain</p> Signup and view all the answers

<p>Disease states</p> Signup and view all the answers

<p>Uncontrolled cell growth and accumulation of affected cells</p> Signup and view all the answers

<p>Reducing friction between movable joints</p> Signup and view all the answers

<p>Genetic abnormality or mutation</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>Nonstriated</p> Signup and view all the answers

<p>Nerve</p> Signup and view all the answers

<p>Neurons</p> Signup and view all the answers

<p>Hollow</p> Signup and view all the answers

<p>cutaneous</p> Signup and view all the answers

<p>mucosae</p> Signup and view all the answers

<p>serosa</p> Signup and view all the answers

<p>Synovial membrane</p> Signup and view all the answers

<p>redness</p> Signup and view all the answers

<p>acute</p> Signup and view all the answers

<p>genetic</p> Signup and view all the answers

<p>tumors</p> Signup and view all the answers

<p>Skeletal Muscle Tissue = Attached to bones, striated, voluntary, provides motion, maintenance of posture, and heat production Cardiac Muscle Tissue = Forms most of the heart wall, striated, usually involuntary, provides motion for the heart Smooth (Visceral) Muscle Tissue = Found in the walls of hollow internal structures, nonstriated, usually involuntary, provides motion for various internal structures Nervous Tissue = Major cell: Neurons (nerve cells) and neuroglia, location: throughout the body and concentrated in the brain and spinal cord, function: mediates perception and response</p> Signup and view all the answers

<p>Cell body = Contains the nucleus and mitochondria Dendrites = Receive electrical impulses and pass them to the cell body Axons = Relay the impulse to another excitable cell Neuroglia = Protect and support neurons, and are often the sites of tumors of the nervous system</p> Signup and view all the answers

<p>Provides motion, maintenance of posture, and heat production = Skeletal Muscle Tissue Provides motion for the heart = Cardiac Muscle Tissue Provides motion for various internal structures = Smooth (Visceral) Muscle Tissue Mediates perception and response = Nervous Tissue</p> Signup and view all the answers

<p>Striated, usually involuntary, provides motion for the heart = Cardiac Muscle Tissue Nonstriated, usually involuntary, provides motion for various internal structures = Smooth (Visceral) Muscle Tissue Attached to bones, striated, voluntary, provides motion, maintenance of posture, and heat production = Skeletal Muscle Tissue Found in the walls of hollow internal structures, nonstriated, usually involuntary, provides motion for various internal structures = Smooth (Visceral) Muscle Tissue</p> Signup and view all the answers

<p>Cutaneous membrane (skin) = Stratified keratinized squamous membranes on top of connective tissues; protects the body from pathogens and the external world Mucous membrane (mucosae) = Lines cavities that open to the exterior, such as the gastrointestinal tract; consists of an epithelial layer with exocrine glands that secrete mucus and a connective tissue layer called the lamina propria that supports the epithelial layer Serous membrane (serosa) = Lines body cavities that do not open directly to the exterior and covers the organs within the cavity; consists of parietal and visceral portions; secretes a lubricating serous fluid that reduces friction between organs and the walls of the cavities; forms double sheets of mesenteries that suspend the digestive organs in the abdominal cavity; derived from mesoderm and is a simple squamous layer Synovial membrane = Lines joint cavities, bursae, and tendon sheaths; consists only of connective tissue; secretes a lubricating synovial fluid to reduce friction between movable joints and constantly exchanges water and nutrients with blood</p> Signup and view all the answers

<p>Redness (erythema) = One of the four signs of inflammation, indicating increased blood flow to the injured tissue through vasodilation, resulting in redness and local hyperthermia Swelling = One of the four signs of inflammation, caused by the movement of neutrophils, macrophages, and fluid from blood to interstitial tissue space, resulting in local edema or interstitial swelling Local heat = One of the four signs of inflammation, resulting from increased blood flow to the injured tissue through vasodilation Pain = One of the four signs of inflammation, caused by swollen tissues squeezing pain receptors</p> Signup and view all the answers

<p>Uncontrolled cell growth, penetration into adjacent tissues, local blood vessel proliferation, and spread to other tissues or organs = Effects of mutated cells becoming cancerous if they escape regulation signals Form tumors that take blood supply away from normal healthy cells and organs = Effects of cancerous cells forming tumors Abnormal cell division and accumulation of affected cells that are not capable of forming regular tissue = Effects of cancerous mutations affecting key proteins involved in controlling and regulating cell division Acquiring a genetic abnormality or mutation = Cause of cancer arising from cells</p> Signup and view all the answers

<p>Cardiac Muscle Tissue = Primarily found in the walls of hollow internal structures Skeletal Muscle Tissue = Usually voluntary and responsible for movement Smooth (Visceral) Muscle Tissue = Involuntary and found in the walls of hollow internal structures and blood vessels Neuroglia = Main cells of nervous tissue responsible for supporting and protecting neurons</p> Signup and view all the answers