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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.
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. Serves as the framework within all vertebrate organisms
Endoskeleton
Origin
Tendons
Segmented Worms (Annelids)
2. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Isometric Contraction
Skeletal Muscle
Muscle Contraction
Thin filaments
3. Serve as bone to bone connectors
Intramembranous Ossification
Ligaments
Muscles in Mammals
Origin
4. Much less dense and consists of an interconnecting lattice of bony spicules
Flexion
Latent period
Segmented Worms (Annelids)
Spongy Bone
5. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Extrapyramidal System
Smooth Muscle
Flexion
Cartilage
6. Occurs by either endochondral ossification or by intramembranous ossification
Red Marrow
Striated Muscle
Bone Formation
Z line
7. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Yellow marrow
Tendons
Sarcomeres
Osteoblasts
8. Involved in blood cell formation
Red Marrow
Unicellular Locomotion
Smooth Muscle
Myofibrils
9. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Flatworms
T system
Absolute Refractory Period
Axial Skeleton
10. Striations of light and dark bands of skeletal muscle
A Band
Segmented Worms (Annelids)
Striated Muscle
Lamellae
11. 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
Osteon
Extrapyramidal System
Cartilage
Rig Mortis
12. 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
Neuromuscular Junction
Tetanus
Bone
Isotonic Contraction
13. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Z line
Concentric Contraction
ATP
Endochondral Ossification
14. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Insertion
Cardiac Muscle Fibers
Absolute Refractory Period
Bone Formation
15. 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
Sarcolemma
Osteon
Simple Twhich
Absolute Refractory Period
16. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Extension
Osteoblasts
M line
Flagella
17. Refers to a bending of a joint
Bone Formation
Flexion
Lamellae
Compact Bone
18. Skeletal muscle - smooth muscle - and cardia muscle
Muscles in Mammals
Isometric Contraction
Creatine Phosphate and ARginine Phosphate
Pyramidal System
19. Muscle tissues of the heart
Flagella
Muscles in Mammals
Cardiac Muscle Fibers
Ligaments
20. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Spongy Bone
Absolute Refractory Period
Sarcoplasmic Reticulum
Rig Mortis
21. Region containing thick filaments only
Thin filaments
Muscles in Mammals
H zone
Sarcolemma
22. Cells responsible for synthesizing cartillage
Origin
Cardiac Muscle Fibers
Chorondytes
Myofibrils
23. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Isometric Contraction
Sarcolemma
Creatine Phosphate and ARginine Phosphate
Spongy Bone
24. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Thick Filaments
Creatine Phosphate and ARginine Phosphate
Origin
Osteoclasts
25. 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
Endochondral Ossification
Fiber
Bone
26. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Isometric Contraction
Tendons
T system
Eccentric Contraction
27. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
A Band
I band
Rig Mortis
Extrapyramidal System
28. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Myoglobin
Tonus
Osteon
Z line
29. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Endochondral Ossification
Neuromuscular Junction
Intramembranous Ossification
Tendons
30. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Extension
Flatworms
Extrapyramidal System
Axial Skeleton
31. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Absolute Refractory Period
H zone
Simple Twhich
Exoskeleton
32. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Endoskeleton
Osteoblasts
I band
Z line
33. Existing cartilage is replaced by bone
Myofibrils
Tendons
Endochondral Ossification
Red Marrow
34. 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
Tetanus
A Band
Osteon
Ligaments
35. Responsible for voluntary movements and is innervated by the somatic nervous system
H zone
Skeletal Muscle
Smooth Muscle
Intramembranous Ossification
36. Able to provide rapid commands to the skeletal muscles and variious other organs
Simple Twhich
M line
Pyramidal System
Tonus
37. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Tetanus
Neuromuscular Junction
Rig Mortis
Isotonic Contraction
38. 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
Temporal Summation
Cardiac Muscle Fibers
Absolute Refractory Period
Lamellae
39. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Exoskeleton
Fiber
Concentric Contraction
I band
40. Composed of organized bundles of myosin molecules
Thick Filaments
Isotonic Contraction
Yellow marrow
Thin filaments
41. The primary source of energy for muscle contraction
ATP
Myoglobin
Yellow marrow
Intramembranous Ossification
42. Composed of thin and thick filaments
Neuromuscular Junction
T system
Sarcomere
Absolute Refractory Period
43. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Cori Cycle
Osteoblasts
Myoglobin
ATP
44. Large - multinucleated cells involved in bone resorption
Simple Twhich
Osteoblasts
Skeletal Muscle
Osteoclasts
45. The region containing thin filaments only
Chorondytes
I band
Extrapyramidal System
Intramembranous Ossification
46. Advance principally by the action of muscles on a hydrostatic skeleton
Ligaments
Segmented Worms (Annelids)
Intramembranous Ossification
Endoskeleton
47. Runs down the center of the sarcomere
Lamellae
Eccentric Contraction
Muscle Contraction
M line
48. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Cori Cycle
Osteon
M line
Z line
49. Inactive and infiltrated by adipose tissue
Intramembranous Ossification
Yellow marrow
Compact Bone
Smooth Muscle
50. Chains of actin molecules
Thin filaments
A Band
Skeletal Muscle
Lamellae