Chapter 3, Problem 1WS

The ________ opposes or resist, the action  caused by the prime mover Antagonist  Prime mover Agonist synergist   Th ________of as muscle is the tendinous attachment on the bone that moves the least during contraction of the muscle  Belly Insertion Origin architecture   The _________of a muscle is the tendinous attachment on the bone that moves the most during contraction of the muscle Architecture Insertion Origin  belly

Arrange the steps of muscle innervation and contraction in response to touching a hot plate. appendage is removed from stimulus v movement is produced muslce fibers work together to produce action muscle contraction occurs and the sarcomere shortens Myosin heads bind thin filament Calcium binds troponin Calcium is released T tubules carry the action potential to the sarcoplasmic reticulum Action potential is generated in the sarcolemma as a result of opened sodium channels The presynaptic cell releases acetylcholine Signal arrives at the neuromuscular junction Sensory receptors detect uncomfortable heat Afferent neurons carry impulse to the central nervous system Signal reaches the reflex arc in the central nervous system and is directed out through the anterior horn Signal travels through the motor units > |> > > |> > > > > > > > >

くく I Q Im ongo Skeletal musdesare surrounded by A. Each musde is made of many B. Each Bis surrounded by C Each B is made of many D Each Dis surrounded by E and a plasma membrane, the F. Each D is made of many G Section of alG Each Each G is made of many that are attached end-to end. Is surrounded by H 1. myofibril(s) 2. sacromere(s) 3. endomysium 4. perimysium 5. sarcolemma 6. sarcoplasmic reticulum 7. epimysium 8. muscle fiber(). 9. fascicle(s)

Label Figures

Muscle fibres which characterize skeletal and cardiac muscle (dark-light bands):   muscle budle   myosin   sacromere   filaments Frontal view of the lower leg   anterior view of the fibula   anterior view of the femur   distal view of the calcaneus   sagittal view of the tibia Cross-section of the breastbone:   sagittal view of the scapula   sagittal view of the sternum   transverse view of the scapula   transverse view of the clavicle The system producing most of the energy in a long workout:   phosphocraitin   anaerobic   anaerobic alactic   aerobic The moment of inertia depends on:   the moment of force   the…

Label A-E as the following: -Bone -Muscle Fiber -Myofibril -Muscle Fasciculus -Sarcolemma

Which of the following is in the correct order of largest to smallest O Muscle, bundle of myofibrils, muscle fibers, sacromere O Muscle, bundle of muscle fibre, muscle fibre, myofibril Omuscle, myofibril, bundle of myofibril. muscle fibre Omuscle fibre, myofibril, sacromere, muscle

Muscle versus bone Venn diagram Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or phrase is associated with both muscular and skeletal systems, place it in the overlapping parts of the circles. High use of ATP Bone cells Helps maintain body temperature Contains blood vessels Includes connective tissue Calcium reservoir Produces blood cells Receives signals from nervous system One function is movement Sliding filament model Myofibrils Vertebrate muscular system Vertebrate skeletal system

Match the relaxation and contraction action of the skeletal muscle with the events mentioned. D D D D Calcium moves out of the sarcoplasm, back into the sarcoplasmic reticulum The membrane of the muscle fiber repolarizes. The membrane of the muscle fiber depolarize. Motor neuron stops releasing its chemical signal Calcium from the sarcoplasmic reticulum into the sarcoplasm. ions are released Action potential arrives at the neuromuscular junction and synaptic vesicles release acetylcholine (ACh) 1. Relaxation 2. Contraction