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GMS-MyologyReview
GMS-MyologyReviewQuestions
| Question | Answer |
|---|---|
| Define Intercalated Disks. | Modified plasma membrane in cardiac tissue allowing rapid transfer of electrical impulses btw cells |
| List in order smallest to largest part of muscle layers Fascile Muscle Fiber. | Fiber,Fascile,Muscle |
| List membranes in order fr deepest to superficial Perimysium Epimysium Endomysium. | Endomysium, Perimysium, Epimysium |
| What two filaments combine to form the cross-bridge? | Actin&Myosin |
| Where does calcium go when a muscle relaxes? | Sarcoplasmic Recticulum |
| What is the byproduct of anaerobic exercise? | Lactid Acid |
| Name the function of Myoglobin. | stores oxygen |
| Name the function of Glycogen. | stores glucose |
| Name the function of Creatine Phosphate. | stores energy |
| True or False,Exercise results in dilation of blood vessels. | True |
| Muscle Tone | Partially contracted state even when muscle not in use |
| What kind of muscles are the intestines? | Smooth muscle |
| Name the neurotransmitter involved in muscular contraction. | Acetylcholine |
| Hypertrophy | Use of and increase in size of a part |
| What is a muscle that opposes a given action called? | antagonist |
| Example of 3rd class lever action. | Flexion of forearm |
| Flexion | Bending motion that decreases angle btw bone at the joint |
| What does saco refer to? | flesh |
| What term refers to a ring shaped muscle? | orb |
| What is an aponeurosis? | Broad sheet attach to bone or other muscles |
| What is sarcomere? | Contracting sub unit of skeletal muscle |
| What does myo refer to? | muscle |
| What is the energy compound that is needed for a power stroke? | ATP |
| What kind of contraction shortens a muscle, but doesn't increase muscle tension? | IsoTonic |
| What is a Motor Unit? | Single neuron and all the muscle fibers it contracts. |
| A neuromuscular junction is an example of a _________. | Synapse |
| What do you call muscles that steady body parts or assist the prime mover? | Synergist |
| Muscle contraction requires__________ in the form of myoglobin | energy |
| What process of oxygen consumption occurs in the PRESENCE of oxygen? | Aerobic |
| What process of oxygen consumption occurs in the ABSENCE of oxygen? | Anaerobic |
| What do you call a less moveable attachment site? | Origin |
| What do you call a more moveable attachment site? | Insertion |
| The muscle performing the action/movement is the | Prime Mover |
| What do you call muscles that steady body parts or assist the prime mover? | Synergist |
| What is the Law of Reciprocal Inhibition? | For any given movement,the antagonist must RELAX when the prime mover CONTRACTS |
| What is a Lever? | A rigid bar that moves about a fixed pivot point...the Fulcrum |
| What class Lever is the MOST in the body? | Third Class Lever |
| An example of a 1st class lever-Effort>FULCRUM>Resistance(Force) would be | Scissors |
| An example of a 2nd class lever- Effort>RESISTANCE(Force)>Fulcrum would be | Wheelbarrow |
| An example of a 3rd class lever- Fulcrum>EFFORT>Resistance(Force) would be | Tweezers (forearm flexion) |
| In the lever systems in the body the Bone is the | Lever |
| In the lever systems in the body the Joint is the | Fulcrum |
| In the lever systems in the body the Muscle is the | Force/Effort |
| What are two properties of muscles? | Excitability & Contractility |
| Define Excitability property of a muscle. | Response to stimuli and conduct impulses |
| Define Contractility property of a muscle. | Muscle able to shorten and change shape |
| What muscle contraction produces No Movement& remains same lenghth but Tone Increases? | IsoMetric Contraction |
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