Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Muscle Tissue
A&P Chapter 10 Dr. Cutler
| 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 |
Created by:
delainaxrepola
Popular Anatomy sets