Muscle Tissue Word Scramble
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What are the 3 types of Muscular Tissue? | Skeletal, Cardiac, and Smooth |
What are the characteristics of the skeletal muscular tissue? | Voluntary, Striated (striped), and moves bones at the joints |
What are the characteristics of the cardiac muscular tissue? | Involuntary, pacemaker cells, and intercalated discs |
What are the characteristics of the smooth muscular tissue? | Involuntary, hollow organs (GI tract) and blood vessels |
What are the properties of muscule tissue? | Excite, Contract, Elastic, and Extend |
What does the muscule tissue property, excite do? | It's responsive to stimulus from the nervous system (stretching) |
What does the muscle tissue property, contract do? | It creates tension when the muscle is stimulated |
What does the muscle tissue property, elastic do? | It recoils to resting length after tension is removed |
What does the muscle tissue property, extend do? | It extends when the opposing muscle is contracted (flexed) |
What are the functions of muscle tissue? | Body movement, Posture, Temperature regulation, Storage and movement of materials, and Support |
What does body movement do? | It allows movement between the muscles, bones and joints |
What does posture do? | It prevents you from collapsing |
What does temperature regulation do? | Produces heat when muscles contract, causes you to shiver |
What does the function, storage and movement of materials, do? | Keeps urine, bowel and stomach contents in by using sphincters (circular muscle bands) at orifices (openings) |
What does the function, support, do? | Supports weight and push of organs in the abdomen and pelvic cavities |
What is a Fascicle? | Bundle of muscle fibers |
What is another name for muscle fibers? | Muscle Cell |
What does muscle fibers contain? | Myofibrils |
What are myofibrils made of? | Monofilaments |
What is a Sarcomere? | A contractile unit of muscle cell/fiber |
What is a Sarcoplasmic Reticulum? | Membranes of hollow tubes that stores calcium |
What are the 3 concentric layers in the connective tissue in muscles? | Endomysium, Perimysium, and Epimysium |
What are the functions of concentric layers? | It encircles each individual muscle fiber, groups of muscle fibers and the entire muscle itself |
What is the innermost layer of connective tisssue in muscles? | Endomysium |
What does the perimysium do? | Surrounds bundles of muscle fibers (fascicles) |
What does epimysium do? | Outermost layer that surrounds the entire skeletal muscle |
What are the 2 kinds of Fascia? | Deep fascia and superficial fascia |
What are the properties of the deep fascia? | Separates individual muscles, binds together muscles with similar functions and fills spaces between muscles |
What does the superficial fascia do? | Separates muscle from skin |
What are the types of muscle attachments? | Tendon, Origin, Insertion |
What is an Aponeurosis? | A thin, flat sheet of tendon |
What do Tendons do? | Attaches muscle to bone |
What is Origin? | The less moveable attachment of a muscle |
What is Insertion? | The more moveable attachment of a muscle |
What are Motor Neurons? | Nerve cells that stimulate muscle contraction |
What are Axons? | The long extension from the neuron cell body to the muscle. Transmits electricals impulses to the muscle fibers |
What is the Neuromusular Junction? | The junction between the axon and muscle fiber itself |
What is the Sarcolemma? | The plasma membrane of a muscle fiber |
What does the Sarcolemma contain? | Transverse Tubules |
What do Transverse Tubules do? | Transmits nerve signal and electricity |
What is the Sarcoplasm? | Cytoplasm of a muscle fiber |
What does the Sarcoplasmic Reticulum (SR) do? | Reservoir for calcium ions |
What is a Terminal Cisternae? | Sacs at the end of the Sarcoplasmic Reticulum that collect calcium |
What is a Myofibril? | Long, cylinder-shaped structures ina skeletal muscle fibers |
What is a Myofilament? | Makes up myofibrils |
What are the 2 smallest units of Myofilaments? | Actin and Myosin |
What is a Actin? | A thin filament thats a binding site for Myosin |
What does Actin do? | Slides along the length of Myofibril during muscle contractions |
What is a Myosin? | A thick filament that has a binding site for Actin |
What does Troponin do? | Bounds to Actin and holds tropomyosin in place to cover the myosin binding site |
What does Tropomyosin do? | Bounds to Actin and covers the myosin binding site |
What is the Sarcomere? | The functional contractile unit of a skeletal muscle fiber |
What is the Sliding Filament Theory? | When thin filaments slide past thick filaments |
What are the parts of a Neuromuscular Junction? | Synaptic Vesicles, Motor End Plate, Synaptic Cleft, AcH receptors, and Acetylcholinesterase |
What is the Neuromuscular Junction? | The point where a motor neuron meets a skeletal nerve fiber |
What does Synaptic Vesicles contain? | Acetylcholine (AcH) |
What is the Motor End Plate? | The folded region of a sarcolemma under the Axon Bulb |
What is the Synaptic Cleft? | The space between the Axon Bulb and the Motor End Plate |
What are Acetylcholine Receptors? | Pick up Synaptic Cleft, released from the Axon Bulb of Neuron during a nerve impulse response |
What is the Acetycholinesterase? | An enzyme in the Synaptic Cleft that breaks down AcH |
What controls Muscle Tension? | A Motor Unit |
What does the strength of a contraction depend on? | How many Motor Units are activated |
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delainaxrepola
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