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APR Connect TEST 2
APR Chapters 10 - 11 - 12
| Question | Answer |
|---|---|
| The outermost layer of connective tissue of a muscle | EPIMYSIUM |
| The rectus abdominis is a _____________muscle | PARALLEL |
| The rectus femoris is a ______________muscle | BIPENNATE |
| What is the distal attachment of all three heads of the triceps brachii | OLECRANON |
| What is the longest muscle in the human body | SARTORIS |
| Which term refers to a muscle that prevents a bone from moving during an action | FIXATOR |
| The muscle primarily responsible for a movement is t he | PRIME MOVER (agonist) |
| If a skeletal muscle contracts with FULL FORCE (maximum stumulus) it will _____________force if a greater stimulus is applied | NOT CONTRACT WITH MORE |
| Which of the following is not a function of the muscular system | SECRETION |
| The skeletal muscles are innervated by | SPINAL NERVES AND CRANIAL NERVES |
| What muscles are in the medial compartment of the thigh | GRACILIS, ADDUCTOR LONGUS, ADDUCTIOR BREVIS, PECTINEUS, ADDUCTOR MAGNUS, & OBTURATOR EXTERNUS |
| Muscles that dorsiflex the foot are found in which compartment of the leg | ANTERIOR |
| Muscle fibers are arranged in bundles called | FASCICLES |
| An isometric contraction does not change muscle length TRUE OR FALSE | TRUE |
| Cross bridges form between binding sites on actin myofilaments | MYOSIN HEADS |
| In order for muscle to continue contracting during anaerobic fermentation, what is ESSENTIAL???? | MYOKINASE |
| Resistance exercise will most likely cause muscle to | HYPERTROPHY |
| Membranous channel extending inward from muscle fiber membrane | TRANSVERSE TUBULE |
| Cytoplasm of a muscle fiber | SARCOPLASM |
| Connective tissue located between adjacent muscles | FASCIA |
| Layer of connective tissue that separates a muscle into small bundles called fascicles | PERIMYSIUM |
| Plasma membrane of a muscle fiber | SARCOLEMMA |
| Layer of connective tissue that surrounds a skeletal muscle | EPIMYSIUM |
| Which muscle can contract without the need for nervous stimulation | SMOOTH & CARDIAC MUSCLE |
| Skeletal muscle are attached to bones in a way that aligns proteins in an overly stretched (lengthened) position. This lengthening facilitates the shortening of contractions. T OR F | FALSE |
| The absence or inhibition of acetylcholinesterase at a synapse would lead to | TETANUS |
| Best describes the resting membrane potential (RMP) | The intracellular enviroment is negatively charged |
| Skeletal muscle is called_________, because it is usually subject to conscious control | VOLUNTARY |
| All muscle types will respond to an electrical stimulus because all muscle cells are | EXCITABLE |
| Cardiac muscle has very little capacity for regeneration because it lacks | SATELLITE CELLS |
| Drugs called calcium channel blcokers may be used to lower blood pressure by causing arteries to vasodilate....HOW? | They prevent calcium from entering smooth muscle thus allowing the muscle to relax |
| How many somatic motor neurons stimulate one muscle fiber | ONE |
| Why does one continue to breathe heavy after rigorous physical activity has stopped? | The body requires more oxygen to restore levels of ATP and creatine phosphate |
| To stimulate muscle contraction, acetycholine is released from the ******** into the synaptic cleft???? | SYNAPTIC VESICLES |
| Some smooth muscle is autorhythmic **** TRUE OR FALSE? | TRUE |
| Shortening a muscle while it maintains constant tension is called | ISOTONIC CONTRACTION |
| As you are lifting a box, someone places extra weight on top of it...for your muscles to continue contracting and lifting the box a muscle must.... | recruit more muscle fibers |
| A motor unit is best defined as a | Motor neuron plus all of the muscle fibers that it innervates |
| What is released when a myosin heads attach to actin filaments | PHOSPHATES |
| the protein that acts as a calcium receptor in skeletal muscle is | TROPONIN |
| Athletes who train at high altitude increase their red blood count, which increases their oxygen supply during exercised. Increased oxygen supply results in........ | Longer aerobic respiration |
| Where would you expect to find numerous gap junctions in muscular tissue | INTERCALATED DISCS OF CARDIAC MUSCLE |
| In skeletal muscle, the term that describes the alternating light and dark bands is | STRIATIONS |
| When acetylcholinesterase outlasts the release of acetylcholine from the synaptic vesicles, the skeletal muscle | RELAXES |
| The scarcoplasmic reticulum is the smooth endoplasmic reticulum of a muscle fiber .....TRUE OR FALSE | TRUE |
| An action potential for a muscle cell is propagated along the | SARCOLEMMA |
| a bundle of muscle fibers is known as a | FASCICLE |
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cfinnie93