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A&P Exam Two
Chapter 6
| Question | Answer |
|---|---|
| Which type of muslce lacks striations, has spindle shaped cells, has a single nucleus, is found within the walls of hollow organs and is involuntary (has no control)? | Smooth muscle |
| Which type of muscle is also known as visceral muscle? Generally found in visceral organ function? | Smooth muscle |
| Which type of muscle is voluntary? | Skeletal muscle |
| This type of muscle produces movement, maintains posture, stabalizes joints and generates heat? | Skeletal musccle |
| This is the specialized plasma membrane of the muscle cell. | Sarcolemma |
| These are long organelles inside the muscle cell. | Myofibrils |
| This is the largest and most abundant organelles in the muscle cell. | Myofibrils |
| The sarcoplasmic reticulum (SR) is a smooth ER. | True |
| This stores and releases calcium ions in the muslce cell. | Sarcoplasmic reticulum |
| l band = light band and contains? | Thin filaments |
| A band = dark band and contains? | Thick filaments and myosin proteins |
| This is the contractile unit of the muscle fiber. | Sarcomere |
| To achieve skeletal muscle contractions which two protiens interact? | Myosin and actin |
| This is VIP to contraction, by allowing binding. | Calcium ions |
| These are the thick filaments of the muscle cell. | Myosin |
| These are the thin filaments of the muscle celll. | Actin |
| Which filaments are anchored to the Z disc? | Thin/actin filaments |
| What is the most common cause of muscle fatigue? | Oxygen deficiency |
| The many oval nuclei that can be seen beneath the muscle cell membrane is called? | Sarcolemma |
| This is the thin connective tissue that surrounds each muscle cell. | Endomysium |
| This is the connective tissue that envelopes the bundles of muscle fibers. | Perimysium |
| This is the fibrous connective tissue(sheath)that surrounds a muscle. | Epimysium |
| This keeps the muscle healthy and ready to react; the sustained partial contraction of a muscle in responce to stretch receptor imputs. | Muscle tone |
| This is the tense, contracted state of a muscle-constant smooth contraction. | Tetanus also an infectious disease |
| Attachment to a moveable bone. | Insertion |
| Attachment to an inmoveable bone. | Origin |
| The movement of arms/hips forward? | Flection |
| The movement of arms/hips backward? | Extention |
| When the knee/elbow is bent. | Flection |
| When the knee/elbow is straightened. | Extension |
| To move the head down. | Flection |
| To move the head backward. | Extension |
| To move the arm out. | Lateral |
| To move the arm in. | Medial |
| This is a combination of flection,extension, abduction and adduction. | Circumduction |
| Movement of a limb away from the midline. | Abduction |
| Movement of a limb toward the midine. | Adduction |
| The rectus femoris, vastus lateralis, vastus medialis and Lliopsoas describe? | The quadricep group |
| The biceps femoris, semitendinosis and the semimembranosus describe? | The hamstring group |
Created by:
rhiginbo
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