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Test your basic knowledge |
PCAT Biology Muscles And Locomotion
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Subjects
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pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
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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. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Unicellular Locomotion
Creatine Phosphate and ARginine Phosphate
A Band
Compact Bone
2. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Thick Filaments
H zone
Isometric Contraction
Rig Mortis
3. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
ATP
Cori Cycle
Sarcomeres
Isotonic Contraction
4. The primary source of energy for muscle contraction
ATP
Extrapyramidal System
A Band
Bone
5. Cells responsible for synthesizing cartillage
Osteoclasts
Endochondral Ossification
Muscle Contraction
Chorondytes
6. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Intramembranous Ossification
ATP
Simple Twhich
Compact Bone
7. State of partial contraction
Tonus
Osteoblasts
Skeletal Muscle
Origin
8. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Extrapyramidal System
Red Marrow
A Band
Intramembranous Ossification
9. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Extension
Myoglobin
Sarcoplasmic Reticulum
Yellow marrow
10. Refers to a bending of a joint
Concentric Contraction
Flexion
Red Marrow
Insertion
11. 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
Origin
Chorondytes
Tetanus
M line
12. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Isometric Contraction
Origin
Creatine Phosphate and ARginine Phosphate
Fiber
13. Skeletal muscle - smooth muscle - and cardia muscle
Lamellae
Ligaments
Simple Twhich
Muscles in Mammals
14. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Dynamic Contraction
Endochondral Ossification
A Band
Flatworms
15. The cavities in between the spicules are filled with yellow or red bone marrow
Pseudopodia
Unicellular Locomotion
Spicules
Endoskeleton
16. 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
Endochondral Ossification
Simple Twhich
Temporal Summation
Myofibrils
17. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Striated Muscle
Temporal Summation
Flatworms
18. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Myoglobin
Absolute Refractory Period
Muscle Contraction
Dynamic Contraction
19. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Extrapyramidal System
Sarcomeres
Exoskeleton
Myofibrils
20. 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
Dynamic Contraction
Compact Bone
Isotonic Contraction
Thick Filaments
21. Time between stimulation and the onset of contraction
Flexion
Fiber
Flatworms
Latent period
22. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Isometric Contraction
Sarcoplasmic Reticulum
Spicules
Endoskeleton
23. Specialized type of mineralized connective tissue that has the ability to withstand physical stress -designed for body support -hard and strong while - at the same time somewhat elastic and lightweight
Thick Filaments
Bone
Skeletal Muscle
Yellow marrow
24. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Exoskeleton
Extrapyramidal System
Isotonic Contraction
Absolute Refractory Period
25. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Flagella
Endochondral Ossification
Absolute Refractory Period
A Band
26. Able to provide rapid commands to the skeletal muscles and variious other organs
I band
Dynamic Contraction
Pyramidal System
Yellow marrow
27. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Axial Skeleton
Spongy Bone
Osteoblasts
ATP
28. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Intramembranous Ossification
Dynamic Contraction
Exoskeleton
Cartilage
29. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Cartilage
Muscle Contraction
A Band
Isometric Contraction
30. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
H zone
Insertion
Pseudopodia
Spicules
31. The region containing thin filaments only
M line
Tendons
Smooth Muscle
I band
32. Units of diveded myofibrils
Fiber
Cardiac Muscle Fibers
Sarcomere
Sarcomeres
33. Indicates a straightening of a join
Osteon
Extension
Bone
Tonus
34. Region containing thick filaments only
Myofibrils
Isotonic Contraction
H zone
Thin filaments
35. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Muscles in Mammals
Creatine Phosphate and ARginine Phosphate
Rig Mortis
Sarcomere
36. Striations of light and dark bands of skeletal muscle
ATP
Skeletal Muscle
Striated Muscle
Fiber
37. Responsible for voluntary movements and is innervated by the somatic nervous system
ATP
Skeletal Muscle
Cori Cycle
Muscles in Mammals
38. Concentric circles of bony matrix
Myofibrils
H zone
Lamellae
Flagella
39. Composed of organized bundles of myosin molecules
Thick Filaments
Isotonic Contraction
Eccentric Contraction
Extrapyramidal System
40. Involved in blood cell formation
Red Marrow
Concentric Contraction
Flagella
Origin
41. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Thick Filaments
I band
Sarcoplasmic Reticulum
Osteon
42. Muscle tissues of the heart
Cardiac Muscle Fibers
Cartilage
Osteoclasts
Isometric Contraction
43. Amoeba use for locomotion where the advancing cell membrane extends forward
Axial Skeleton
Pseudopodia
Sarcomeres
Extension
44. Chains of actin molecules
Osteon
Lamellae
Thin filaments
A Band
45. Existing cartilage is replaced by bone
Endochondral Ossification
Thick Filaments
Myofibrils
Compact Bone
46. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Sarcomeres
Fiber
Chorondytes
Yellow marrow
47. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Isometric Contraction
Exoskeleton
Chorondytes
Cori Cycle
48. The response of a single muscle fiber to a brief stimulus at or above the threshold stiulus - and consists of a latent period - a contraction period - and a relaxation period
Simple Twhich
Insertion
Neuromuscular Junction
Skeletal Muscle
49. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Tendons
Osteoclasts
Intramembranous Ossification
Myofibrils
50. Condition where the muscles contract and become rigid - even without action potentials which is caused b an absence of adenosiine triphosphate - which is required for the myosin heads to be released from the actin filaments
Latent period
Intramembranous Ossification
Cartilage
Rig Mortis