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Test your basic knowledge |
PCAT Biology Muscles And Locomotion
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Subjects
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pcat
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biology
Instructions:
Answer 50 questions in 15 minutes.
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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. 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
Muscles in Mammals
Dynamic Contraction
Isometric Contraction
Compact Bone
2. The cavities in between the spicules are filled with yellow or red bone marrow
Insertion
Spicules
Osteoclasts
Bone Formation
3. Able to provide rapid commands to the skeletal muscles and variious other organs
Pyramidal System
Concentric Contraction
Sarcolemma
Thick Filaments
4. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Sarcomere
A Band
Segmented Worms (Annelids)
Temporal Summation
5. Muscle tissues of the heart
Isometric Contraction
Smooth Muscle
Thin filaments
Cardiac Muscle Fibers
6. Involved in blood cell formation
Flatworms
Red Marrow
Tonus
Ligaments
7. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Flatworms
Pseudopodia
Isometric Contraction
ATP
8. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Neuromuscular Junction
Exoskeleton
Dynamic Contraction
Sarcomere
9. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Compact Bone
Sarcomere
I band
Simple Twhich
10. 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
A Band
Rig Mortis
Origin
Striated Muscle
11. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Myoglobin
Sarcomeres
Fiber
Cardiac Muscle Fibers
12. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Latent period
Bone Formation
Creatine Phosphate and ARginine Phosphate
Concentric Contraction
13. Large - multinucleated cells involved in bone resorption
Latent period
Osteoclasts
Endochondral Ossification
Striated Muscle
14. Indicates a straightening of a join
Extension
Flexion
Eccentric Contraction
Z line
15. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Thin filaments
H zone
Striated Muscle
Isotonic Contraction
16. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Isometric Contraction
Cardiac Muscle Fibers
Endoskeleton
Simple Twhich
17. Responsible for voluntary movements and is innervated by the somatic nervous system
Z line
Cartilage
ATP
Skeletal Muscle
18. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Sarcomeres
Red Marrow
Fiber
19. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Simple Twhich
T system
Smooth Muscle
Striated Muscle
20. The region containing thin filaments only
Myoglobin
ATP
Endoskeleton
I band
21. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Flagella
Absolute Refractory Period
Creatine Phosphate and ARginine Phosphate
Sarcolemma
22. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Intramembranous Ossification
Insertion
Exoskeleton
Extrapyramidal System
23. Existing cartilage is replaced by bone
Endochondral Ossification
Tonus
Skeletal Muscle
Simple Twhich
24. Occurs by either endochondral ossification or by intramembranous ossification
Temporal Summation
Myofibrils
Skeletal Muscle
Bone Formation
25. Composed of organized bundles of myosin molecules
Muscles in Mammals
Absolute Refractory Period
Extension
Thick Filaments
26. 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
Bone
Concentric Contraction
A Band
27. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Myoglobin
Cori Cycle
Muscles in Mammals
Simple Twhich
28. Serve as bone to bone connectors
Myoglobin
Sarcolemma
Compact Bone
Ligaments
29. Chains of actin molecules
Thick Filaments
Thin filaments
Striated Muscle
Pyramidal System
30. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Flexion
Absolute Refractory Period
Rig Mortis
Isometric Contraction
31. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Muscle Contraction
Fiber
Lamellae
Rig Mortis
32. Serves as the framework within all vertebrate organisms
Bone Formation
Creatine Phosphate and ARginine Phosphate
Chorondytes
Endoskeleton
33. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Myofibrils
Extension
Dynamic Contraction
Neuromuscular Junction
34. Stimulated by a message from the somatic nervous system sent via a motor neuron
Sarcolemma
Muscle Contraction
Endoskeleton
Extension
35. Refers to a bending of a joint
Pseudopodia
Flexion
Eccentric Contraction
Cori Cycle
36. Striations of light and dark bands of skeletal muscle
Myoglobin
Tendons
Striated Muscle
Cori Cycle
37. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Tetanus
Flatworms
M line
Osteoblasts
38. 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
Flatworms
Spicules
H zone
Simple Twhich
39. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
T system
Pseudopodia
Flatworms
Flagella
40. Much less dense and consists of an interconnecting lattice of bony spicules
Spongy Bone
Striated Muscle
Thin filaments
Tendons
41. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Muscle Contraction
Exoskeleton
Intramembranous Ossification
H zone
42. Composed of thin and thick filaments
Sarcomere
Endoskeleton
Dynamic Contraction
Cartilage
43. Define the boundaries of a single sacromere and anchor the thin filaments
Z line
Intramembranous Ossification
Spicules
Muscle Contraction
44. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Tendons
T system
Skeletal Muscle
Sarcolemma
45. Move by beating cilia or flagella
Unicellular Locomotion
Red Marrow
Flagella
Temporal Summation
46. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Cartilage
Creatine Phosphate and ARginine Phosphate
Simple Twhich
Concentric Contraction
47. Advance principally by the action of muscles on a hydrostatic skeleton
Origin
Bone
Segmented Worms (Annelids)
Muscle Contraction
48. 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
Compact Bone
Bone
Spicules
Striated Muscle
49. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Bone Formation
Muscle Contraction
Osteon
A Band
50. Inactive and infiltrated by adipose tissue
Sarcoplasmic Reticulum
Yellow marrow
Muscles in Mammals
Creatine Phosphate and ARginine Phosphate