Biology Biology Practice Problems Solutions Library

Musculoskeletal System Solutions Library

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21 solutions

Musculoskeletal System

Q. Which of the following statements accurately defines sarcoplasmic reticulum?A. a modified smooth endoplasmic reticulum that wraps around the myofib...

Solved • Oct 2, 2018

Musculoskeletal System

Q. Define the following terms: (a) absolute refractory period, (b) relative refractory period, (c) compound nerve-action potential, (d) synapse, (e) n...

Solved • Jul 19, 2018

Musculoskeletal System

Q. If cartilage is avascular, how do chondrocytes get nutrients and eliminate waste?

Solved • Jun 26, 2018

Musculoskeletal System

Q. Cartilage is found ____a. surrounding organs such as the kidneysb. in the heartc. at the ends of bones such as the femurd. covering the surface of ...

Solved • Jun 22, 2018

Musculoskeletal System

Q. The sarcoplasmic reticulum is a specialized form of ER that surrounds each myofibril. The sarcoplasmic reticulum functions to control cytosolic Ca2...

Solved • Jun 13, 2018

Musculoskeletal System

Q. Skeletal muscle is capable of which of the following?a. wave summationb. fused tetanusc. autorhythmicityd. wave summation and fused tetanuse. wave ...

Solved • Jun 12, 2018

Musculoskeletal System

Q. Explain why, during exercise, muscle cells need liver cells for regeneration of glucose from lactate.

Solved • Jun 12, 2018

Musculoskeletal System

Q. Drag the labels onto the diagram to label the steps of smooth muscle activation and deactivation.

Solved • Jun 7, 2018

Musculoskeletal System

Q. What is the primary function of wave summation?a. prevent muscle fatigueb. increase muscle tensionc. prevent muscle relaxationd. produce smooth, co...

Solved • Jun 6, 2018

Musculoskeletal System

Q. The interaction between which protein and ion initiates contraction of skeletal muscle?a. troponin; sodium ionsb. myosin; sodium ionsc. tropomyosin...

Solved • Jun 6, 2018

Musculoskeletal System

Q. The cross-bridge cycle starts when _________. select onea. ATP binds to troponin and is hydrolyzed to ADP and Pib. acetylcholine diffuses away from...

Solved • Jun 4, 2018

Musculoskeletal System

Q. All types of muscle tissue have ________.a. striated banding patterns seen under the microscopeb. cells that lengthen when appropriately stimulated...

Solved • Nov 28, 2017

Musculoskeletal System

Q. Blood is best classified as connective tissue because ________.a. its cells are separated from each other by an extracellular matrixb. it contains ...

Solved • Nov 28, 2017

Musculoskeletal System

Q. A ball-and-socket joint connects ________. a. the radius to the ulna b. the radius to the humerus c. the ulna to the humerus d. the humerus to ...

Solved • Nov 28, 2017

Musculoskeletal System

Q. An endoskeleton is the primary body support for the ________. a. annelids, including earthworms b. insects, including beetles c. cartilaginous f...

Solved • Nov 28, 2017

Musculoskeletal System

Q. The venom of cobras contains a mixture of substances that have a variety of physiological effects. One substance in the venom works by preventing a...

Solved • Nov 28, 2017

Musculoskeletal System

Q. Connective tissues typically have ________.a. little space between the membranes of adjacent cellsb. the ability to transmit electrochemical impuls...

Solved • Nov 28, 2017

Musculoskeletal System

Q. Action potentials in the heart move from one contractile cell to the next via ________.a. chemical synapses using acetylcholineb. chemical synapses...

Solved • Nov 28, 2017

Musculoskeletal System

Q. The motor unit in vertebrate skeletal muscle refers to ________. a. one actin binding site and its myosin partner b. one sarcomere and all of its...

Solved • Nov 28, 2017

Musculoskeletal System

Q. Most of the ATP supplies for a skeletal muscle undergoing one hour of sustained exercise come from ________. a. creatine phosphate b. glycolysis ...

Solved • Nov 28, 2017

Musculoskeletal System

Q. A skeletal muscle deprived of adequate ATP supplies will ________.a. immediately relaxb. enter a state where actin and myosin are unable to separat...

Solved • Nov 28, 2017