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57 Cards in this Set
- Front
- Back
Tropomyosin |
Keeps myosin and actin from attaching
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Myosin and actin need |
Calcium ions |
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Thick filaments do not |
Move |
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synovial
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small synovial cavity, no majority
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Troponin is a |
Protein that attaches the tropomyosin
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Z discs are narrow, |
Plate shaped regions of dense material that separate one sarcomere from the next |
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gliding
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nearly flat bone surfaces slide or glide over each other
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Flexion
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1.Flex means to bend 2.angular 3.usually occurs on a saggital plane 4.decreasein the angle between the bones of a joint |
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Extension
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1.exentend means to stretch out 2.angular 3.increase in the angle between the bones of a joint 4.restores to anatomical position |
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Hyperextension
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1.hyper=excessive 2.angular 3.excessive extension beyond anatomical position |
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Abduction
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1.angular 2.moves the appendage AWAY from the midline |
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Adduction
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1.angular 2.moves appendage TOWARD midline |
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Elevation
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1. a special joint movement 2.upward movement raising the body part vertically |
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depression
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1. a special joint movement 2.downward movement lowering the body part vertically |
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Protraction (pro=in front of) (trahere=to draw) |
1. special joint movement 2. move a body part forward or anterior on a horizontal plane |
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Retraction
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1.special joint movement 2.move a body part back or posterior |
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supination
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turn palm of the hand to face forward, or, if the palm is outstretched, turn the palm upward also a special joint movement supine means to lay on back |
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pronation
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special joint movement lying face downward=pronate turn palm of the hand backward, if arm is outstretched, turn the palm downward |
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Inversion
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turn the sole of the foot inward special joint movement |
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Eversion
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special joint movement turn the sole of the foot outward |
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Dorsiflexion
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point your toes upward, stand on your heels special joint movement |
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Plantar Flexion
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special joint movement point your toes downward, raise your heels |
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Articulating bones are covered with |
Articular cartilage |
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Synovial joints are held together |
By ligaments bone to bone |
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Synovial joints assist with |
Nerve and blood supply |
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Synovial joints are surrounded by an |
Articular capsule which are ligaments that form joints |
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Synovial joints permit a large |
Range of movement |
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Examples of synovial joints are |
Shoulders elbows knees hips and fingers |
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Cartilage protects the |
Bones |
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Functions of synovial fluid |
Acts as a shock absorber which reduces the friction of the bones hitting each other it also acts as a lubricant which reduces friction it acts as a medium for the diffusion of oxygen and nutrients out of the bloodstream into the cavity |
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When fluid moves out of the cavity it takes |
Metabolic waste such as CO2 and nitrogen based waste out of the cavity |
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When we pop our joints |
It forces oxygen out and pushes it out of the synovial membrane which damages the membrane |
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The structure determines the function of the |
Muscles |
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Skeletal muscle |
Organs composed of connective tissue plus skelotol muscle |
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True or false some muscles move constantly |
True |
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Muscles are composed of |
Fibers |
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The tendon attaches to the periosteum which is the |
Outer covering |
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Around each myofibril is called a |
Sarcolemma |
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The sarcolemma is not a connective tissue covering but it is a |
Outer Membrane covering |
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Myofilaments |
The contractile portion of are muscle this causes the muscle to get smaller and contract |
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The muscle is covered by the |
Epimysium |
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The smallest portion of a muscle is called the |
Myofilaments |
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The fascicles of the muscle are covered by the |
Perimysium |
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The muscle fibers are covered by the |
Endomysium |
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Name the three types of connective tissue coverings in the muscle |
Epimysium, perimysium, and the endomysium |
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Tendons are extremely |
Strong |
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Myofibrils consist of contractile proteins called |
Actin and myosin |
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Sarcomere |
The sarcomere is one Z disk to another Z disc |
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Thick filaments |
Contain myosin |
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Thin filaments |
Are smaller and thinner and are composed of actin troponin and tropomyosin |
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Name the regulatory proteins |
Troponin and tropomyosin |
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The neurotransmitter molecule is called the |
Acetylcholine |
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Acetylcholine moves across |
The synaptic cleft to connect with the motor end plate |
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A band |
Dark middle part of the sarcomere that extends the entire length of the thick filaments and includes those parts of the thin filaments that overlap the thick filaments |
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I band |
Lighter less dense area of the sarcomere that contains the remainder of the thin filaments but no thick filaments a z disc passes through the center of each I band |
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H Zone |
Narrow region in the center of each a band that contains thick filaments but no thin filaments |
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M line |
The region in the center of the H Zone that contains the protein that hold the thick filaments together at the center of the sarcomere |