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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. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Bone
Isometric Contraction
Flexion
A Band
2. The cavities in between the spicules are filled with yellow or red bone marrow
Spicules
Simple Twhich
Extrapyramidal System
Flagella
3. Chains of actin molecules
Insertion
Endoskeleton
Eccentric Contraction
Thin filaments
4. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Flexion
Sarcomeres
Exoskeleton
Flatworms
5. Concentric circles of bony matrix
Simple Twhich
Osteoclasts
Lamellae
Muscles in Mammals
6. 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
Compact Bone
Bone Formation
Temporal Summation
Chorondytes
7. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Myoglobin
Chorondytes
Extrapyramidal System
Sarcomeres
8. Inactive and infiltrated by adipose tissue
Spongy Bone
Tetanus
Tendons
Yellow marrow
9. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Isometric Contraction
Absolute Refractory Period
Muscle Contraction
Sarcomeres
10. Region containing thick filaments only
Fiber
Dynamic Contraction
Osteoclasts
H zone
11. Able to provide rapid commands to the skeletal muscles and variious other organs
Pyramidal System
Isometric Contraction
Osteon
Simple Twhich
12. Composed of thin and thick filaments
Sarcomere
Muscles in Mammals
Striated Muscle
Cardiac Muscle Fibers
13. Muscle tissues of the heart
Cardiac Muscle Fibers
Creatine Phosphate and ARginine Phosphate
Absolute Refractory Period
Smooth Muscle
14. Large - multinucleated cells involved in bone resorption
Z line
Dynamic Contraction
Origin
Osteoclasts
15. Striations of light and dark bands of skeletal muscle
Axial Skeleton
Striated Muscle
Eccentric Contraction
I band
16. 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
Extension
Muscles in Mammals
Bone
Osteoclasts
17. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Osteoclasts
Axial Skeleton
Endochondral Ossification
Z line
18. Cells responsible for synthesizing cartillage
Simple Twhich
Chorondytes
T system
A Band
19. Time between stimulation and the onset of contraction
A Band
Pseudopodia
Temporal Summation
Latent period
20. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Compact Bone
Thick Filaments
Endoskeleton
Cori Cycle
21. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Tonus
Eccentric Contraction
Myofibrils
Pyramidal System
22. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Chorondytes
Axial Skeleton
Osteon
Isotonic Contraction
23. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Pseudopodia
Isotonic Contraction
Pyramidal System
Insertion
24. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Unicellular Locomotion
T system
Cartilage
Eccentric Contraction
25. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Origin
Isometric Contraction
Sarcolemma
Cartilage
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
Muscle Contraction
Tetanus
Thick Filaments
Tendons
27. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Creatine Phosphate and ARginine Phosphate
T system
Extension
Absolute Refractory Period
28. Existing cartilage is replaced by bone
Osteoblasts
Flexion
Flatworms
Endochondral Ossification
29. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Red Marrow
Osteoblasts
Flagella
Ligaments
30. The primary source of energy for muscle contraction
Smooth Muscle
ATP
Z line
Cartilage
31. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Insertion
Striated Muscle
Osteoblasts
Compact Bone
32. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Sarcomeres
I band
Temporal Summation
Neuromuscular Junction
33. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Spongy Bone
Unicellular Locomotion
Muscle Contraction
Sarcolemma
34. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Flagella
Temporal Summation
Extrapyramidal System
Osteoclasts
35. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Extrapyramidal System
Thick Filaments
Chorondytes
Sarcoplasmic Reticulum
36. Move by beating cilia or flagella
Unicellular Locomotion
Lamellae
Flexion
Bone Formation
37. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Myofibrils
Temporal Summation
Tetanus
Sarcolemma
38. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Sarcomere
Pseudopodia
Creatine Phosphate and ARginine Phosphate
A Band
39. State of partial contraction
Pyramidal System
Tonus
Thick Filaments
Dynamic Contraction
40. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Pseudopodia
Intramembranous Ossification
Cardiac Muscle Fibers
Sarcomeres
41. Units of diveded myofibrils
Bone Formation
M line
Sarcomeres
ATP
42. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Tendons
Creatine Phosphate and ARginine Phosphate
Insertion
Bone
43. Runs down the center of the sarcomere
Z line
M line
Smooth Muscle
Flagella
44. Refers to a bending of a joint
Cartilage
Flexion
Dynamic Contraction
Origin
45. The region containing thin filaments only
I band
Lamellae
Osteoblasts
Spongy Bone
46. Involved in blood cell formation
Red Marrow
Spicules
Skeletal Muscle
Flatworms
47. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Temporal Summation
ATP
Sarcoplasmic Reticulum
Myofibrils
48. Indicates a straightening of a join
Bone Formation
Extension
Dynamic Contraction
Cardiac Muscle Fibers
49. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Endochondral Ossification
Flatworms
H zone
Lamellae
50. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
ATP
Flexion
Osteon
Cartilage