Test your basic knowledge |

PCAT Biology Muscles And Locomotion

Subjects : pcat, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Advance principally by the action of muscles on a hydrostatic skeleton






2. Filaments embedded in fibers of muscles - which are divided into sarcomeres






3. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules






4. Much less dense and consists of an interconnecting lattice of bony spicules






5. Region containing thick filaments only






6. Striations of light and dark bands of skeletal muscle






7. Contraction that becomes continuous when the stimuli are so frequent that the muscle can't relax and is stronger than a simple twith of a single fiber






8. Amoeba use for locomotion where the advancing cell membrane extends forward






9. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases






10. Able to provide rapid commands to the skeletal muscles and variious other organs






11. Responsible for voluntary movements and is innervated by the somatic nervous system






12. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone






13. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus






14. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils






15. Occurs by either endochondral ossification or by intramembranous ossification






16. Composed of organized bundles of myosin molecules






17. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes






18. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils






19. Serve as bone to bone connectors






20. When fibers of a muscle are expoed to a very frequent stimuli - the muscle can't fully relax and the contractions begin to combine - becoming stronger and more prolonged






21. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound






22. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments






23. Cells responsible for synthesizing cartillage






24. Stimulated by a message from the somatic nervous system sent via a motor neuron






25. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases






26. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant






27. Involved in blood cell formation






28. Includes both concentric and eccentric types of contractions -results in the chang in length of the muscle with a corresponding change in tension on that muscle






29. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)






30. Define the boundaries of a single sacromere and anchor the thin filaments






31. Chains of actin molecules






32. Refers to a bending of a joint






33. Responsible for involuntary actions and is innervated by the autonomic nervous system -found in the digetive tract - bladder - uterus - and blood vessel walls - among other places






34. Multinucleated cell created by the fusion of several mononucleated embryonic cell






35. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis






36. The cavities in between the spicules are filled with yellow or red bone marrow






37. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed






38. State of partial contraction






39. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)






40. Concentric circles of bony matrix






41. Inactive and infiltrated by adipose tissue






42. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity






43. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae






44. Muscle tissues of the heart






45. Attach skeletal muscle to bones and bend the skeleton at the movable joints






46. Move by beating cilia or flagella






47. The region containing thin filaments only






48. Composed of thin and thick filaments






49. Units of diveded myofibrils






50. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests