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Test your basic knowledge |
PCAT Biology Muscles And Locomotion
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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. Composed of thin and thick filaments
Axial Skeleton
Sarcomere
Osteon
Segmented Worms (Annelids)
2. Chains of actin molecules
Thin filaments
Axial Skeleton
Flagella
Eccentric Contraction
3. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Intramembranous Ossification
Latent period
Flatworms
Cori Cycle
4. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
T system
A Band
Isotonic Contraction
Pyramidal System
5. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Yellow marrow
Skeletal Muscle
Flagella
6. Large - multinucleated cells involved in bone resorption
Z line
Osteoclasts
Myoglobin
Tonus
7. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Cartilage
Sarcoplasmic Reticulum
Neuromuscular Junction
Thick Filaments
8. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Cardiac Muscle Fibers
Tetanus
Dynamic Contraction
T system
9. Inactive and infiltrated by adipose tissue
Myoglobin
Sarcomere
Yellow marrow
Intramembranous Ossification
10. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Skeletal Muscle
Neuromuscular Junction
Isometric Contraction
Sarcolemma
11. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Isotonic Contraction
Bone Formation
Insertion
Axial Skeleton
12. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Skeletal Muscle
Concentric Contraction
Neuromuscular Junction
Osteoclasts
13. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Intramembranous Ossification
ATP
Bone Formation
Isotonic Contraction
14. Composed of organized bundles of myosin molecules
Origin
Tonus
Thick Filaments
Absolute Refractory Period
15. Cells responsible for synthesizing cartillage
Pseudopodia
Myofibrils
Absolute Refractory Period
Chorondytes
16. The primary source of energy for muscle contraction
Concentric Contraction
ATP
Bone
Spicules
17. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Extrapyramidal System
Creatine Phosphate and ARginine Phosphate
H zone
Compact Bone
18. Responsible for voluntary movements and is innervated by the somatic nervous system
Skeletal Muscle
Axial Skeleton
Red Marrow
Tendons
19. Move by beating cilia or flagella
Tonus
T system
Cartilage
Unicellular Locomotion
20. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Origin
Smooth Muscle
Insertion
T system
21. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Smooth Muscle
Flagella
Striated Muscle
Creatine Phosphate and ARginine Phosphate
22. Amoeba use for locomotion where the advancing cell membrane extends forward
Extrapyramidal System
Smooth Muscle
ATP
Pseudopodia
23. Serve as bone to bone connectors
Ligaments
M line
Eccentric Contraction
Sarcomere
24. Units of diveded myofibrils
Isotonic Contraction
Sarcomeres
Osteoblasts
Ligaments
25. State of partial contraction
Red Marrow
Simple Twhich
Tonus
Bone
26. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Flagella
Isometric Contraction
Eccentric Contraction
Lamellae
27. Able to provide rapid commands to the skeletal muscles and variious other organs
Extrapyramidal System
Pyramidal System
Ligaments
Thick Filaments
28. Advance principally by the action of muscles on a hydrostatic skeleton
Osteoblasts
Segmented Worms (Annelids)
Tonus
Neuromuscular Junction
29. 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
Spongy Bone
Tendons
Sarcomere
30. 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
Spicules
Spongy Bone
Temporal Summation
Yellow marrow
31. The cavities in between the spicules are filled with yellow or red bone marrow
Insertion
Compact Bone
Spicules
Pseudopodia
32. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
M line
Cardiac Muscle Fibers
Myoglobin
Absolute Refractory Period
33. Serves as the framework within all vertebrate organisms
Compact Bone
Exoskeleton
Endoskeleton
Origin
34. Involved in blood cell formation
Sarcoplasmic Reticulum
Red Marrow
A Band
Sarcolemma
35. Region containing thick filaments only
Isometric Contraction
H zone
Eccentric Contraction
Endochondral Ossification
36. Concentric circles of bony matrix
Rig Mortis
Isometric Contraction
Bone Formation
Lamellae
37. Refers to a bending of a joint
Isotonic Contraction
Flexion
Sarcomere
Tendons
38. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Cori Cycle
Skeletal Muscle
Osteoclasts
Fiber
39. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Spongy Bone
Skeletal Muscle
M line
Sarcoplasmic Reticulum
40. Muscle tissues of the heart
Cardiac Muscle Fibers
Segmented Worms (Annelids)
Exoskeleton
Flatworms
41. 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
Temporal Summation
Bone
Smooth Muscle
Z line
42. Striations of light and dark bands of skeletal muscle
Chorondytes
Insertion
Latent period
Striated Muscle
43. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Osteoblasts
Eccentric Contraction
Muscles in Mammals
Fiber
44. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Unicellular Locomotion
Myofibrils
Z line
Thin filaments
45. 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
Flexion
Tetanus
Segmented Worms (Annelids)
Bone Formation
46. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Sarcomere
Pseudopodia
Exoskeleton
Neuromuscular Junction
47. 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
Chorondytes
Eccentric Contraction
Segmented Worms (Annelids)
Rig Mortis
48. Stimulated by a message from the somatic nervous system sent via a motor neuron
Eccentric Contraction
Muscle Contraction
Absolute Refractory Period
Isotonic Contraction
49. 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
Tonus
Cardiac Muscle Fibers
Segmented Worms (Annelids)
Dynamic Contraction
50. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Chorondytes
Spicules
Osteoblasts
Myoglobin