C) ultimately causes the motor neuron to depolarize D) binds to receptons on the
ID: 217852 • Letter: C
Question
C) ultimately causes the motor neuron to depolarize D) binds to receptons on the motor neuroe 10) The l-band consists of10) A) thick ilaments D) M lin 11) A triad consists of 11) A) sarcomeres and T-tubules B) myofitbvils and terminal cislerne C) sarcomeres and ternsinal asternae D) terminal asternac and T-tubules 12) What is the conmect order of structures as you move from outside a muscle cell, to deep inside itt 12) A) myotilanment, fiber, myofibril B) tiber, myofibril, myofilament C) myofibril, myotilament, fiber D) myofilament, myofibril, fiber 13) The actual contractile units of musdes extend from Z disc to Z disc. They are 13) A) sarcoplasmic reticulum B)myoliberils Q) sarcomeres D) thick filaments 14) This antradile protein forms the thin filaments. 14) A) actin B) dystrophin titin D) myosin 5) This contractile protein ts shaped like a golf club.15) A) myosinB) tropomyosin C) troponin D) actin 16) The dark band of skeletal muscle consists of 16) B) both thick and thin filaments D) only thick filaments A) T tubules C) only thin filaments tion of the sarcolemma carries electrical signals deep into the muscle cells. 17) B) sarcoplasmic reticulum 17) This indentat A) T tubule C) triad D) terminal disterns 18) From gross to microscopic, the parts of a musdle are 18) A) fiber, fascicle, muscde B) musde, fascicle, fiber C) musdle, fiber, fascidle D) fascicle musdle, fiber 19) Each of the elements that make up a skeletal musdle is surrounded by connective tissue. Which words below corredly pair the connective tissue layer with the corresponding musde structure?19) A) entire musdle: epimysium B) functional group of musdles: endomysium muscle fiber: deep fascia D) fasciole: perimysium 20) This strong, cord-like structure attaches musdles to bones. A) tendon B) deep fascia C) myofibril D) ligament 20) 21) The neuromuscular junction consists of21) A) a nerve touching a muscle B) the end branch of a single nerve fiber touching a musdle C) a nerve coming into dlose proximity to a musde fiber D) the axon terminal coming into dose proximity to a musde fiber 22) The space between the axon terminal and the sarcolemma of a musde fiber is called the A) synaptic deftB) nerve gap 22)Explanation / Answer
Ans 10) c) Thin filaments.
It is lighter and only contains the thin filaments. It is a light band that is present on each side of the Z line of the striated muscle fibres. It consist of a sarcomere region where thin filaments are not overlapped by the thick ones.
Ans 11) a) Sarcomere and T-tubules.
It is a structure which is formed by the combination of the T-tubule with sarcoplasmic reticulu. The triads are present in large number by the skeletal muscle fibre.
Ans 12)
The sequence is myofilament, fiber, myofibril. Each of the myofibril combine together and forms the myofilament.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.