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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. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Dynamic Contraction
Isometric Contraction
Unicellular Locomotion
Cori Cycle
2. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Compact Bone
Spongy Bone
Exoskeleton
Tonus
3. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Extension
Isotonic Contraction
Extrapyramidal System
Sarcomeres
4. Concentric circles of bony matrix
Z line
Myoglobin
Dynamic Contraction
Lamellae
5. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Tonus
Z line
Sarcolemma
Insertion
6. Striations of light and dark bands of skeletal muscle
Insertion
Compact Bone
Striated Muscle
Spicules
7. Indicates a straightening of a join
Extension
Creatine Phosphate and ARginine Phosphate
Flexion
Cartilage
8. The cavities in between the spicules are filled with yellow or red bone marrow
Eccentric Contraction
Striated Muscle
Spicules
Endochondral Ossification
9. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Cori Cycle
Intramembranous Ossification
Sarcomere
Bone
10. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Tendons
Creatine Phosphate and ARginine Phosphate
Chorondytes
Myoglobin
11. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
T system
Absolute Refractory Period
Creatine Phosphate and ARginine Phosphate
Insertion
12. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Z line
Osteon
Lamellae
Cori Cycle
13. 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
Fiber
Eccentric Contraction
Rig Mortis
Concentric Contraction
14. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Myoglobin
Axial Skeleton
Cardiac Muscle Fibers
Intramembranous Ossification
15. The primary source of energy for muscle contraction
Isotonic Contraction
ATP
Sarcomere
I band
16. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Osteoblasts
ATP
Neuromuscular Junction
Flatworms
17. Move by beating cilia or flagella
Extension
Unicellular Locomotion
H zone
Neuromuscular Junction
18. 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
Neuromuscular Junction
Temporal Summation
Tetanus
Extension
19. Refers to a bending of a joint
Flexion
Muscles in Mammals
Neuromuscular Junction
Creatine Phosphate and ARginine Phosphate
20. Occurs by either endochondral ossification or by intramembranous ossification
Bone Formation
Isotonic Contraction
A Band
Z line
21. Skeletal muscle - smooth muscle - and cardia muscle
Cori Cycle
Axial Skeleton
Muscles in Mammals
Flexion
22. The region containing thin filaments only
I band
M line
Thick Filaments
Skeletal Muscle
23. Region containing thick filaments only
Lamellae
Muscle Contraction
H zone
Sarcoplasmic Reticulum
24. 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
Z line
Thin filaments
Simple Twhich
Concentric Contraction
25. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Sarcomeres
Myofibrils
Extrapyramidal System
Osteoclasts
26. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Neuromuscular Junction
Tonus
Sarcoplasmic Reticulum
Pyramidal System
27. 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
Smooth Muscle
Isometric Contraction
Pyramidal System
Spicules
28. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Axial Skeleton
ATP
Yellow marrow
Compact Bone
29. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Unicellular Locomotion
Sarcolemma
Bone
Chorondytes
30. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Flagella
Sarcomeres
Muscle Contraction
Segmented Worms (Annelids)
31. Involved in blood cell formation
Red Marrow
Neuromuscular Junction
Muscles in Mammals
Bone
32. 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
Eccentric Contraction
Bone
Flexion
Cartilage
33. Units of diveded myofibrils
Sarcomeres
I band
Flatworms
Striated Muscle
34. Composed of thin and thick filaments
Eccentric Contraction
Insertion
Sarcomere
Yellow marrow
35. Composed of organized bundles of myosin molecules
Exoskeleton
Sarcomere
Thick Filaments
Temporal Summation
36. Cells responsible for synthesizing cartillage
I band
Chorondytes
Tendons
Flexion
37. Large - multinucleated cells involved in bone resorption
Striated Muscle
Chorondytes
Osteon
Osteoclasts
38. Chains of actin molecules
Axial Skeleton
Smooth Muscle
Thin filaments
Sarcoplasmic Reticulum
39. Much less dense and consists of an interconnecting lattice of bony spicules
Spongy Bone
Rig Mortis
Flagella
Absolute Refractory Period
40. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Muscle Contraction
Tendons
Isotonic Contraction
Sarcolemma
41. Amoeba use for locomotion where the advancing cell membrane extends forward
Pseudopodia
Origin
Z line
Red Marrow
42. Responsible for voluntary movements and is innervated by the somatic nervous system
Myoglobin
Cardiac Muscle Fibers
Tendons
Skeletal Muscle
43. Muscle tissues of the heart
Simple Twhich
Cardiac Muscle Fibers
Bone Formation
Fiber
44. Serve as bone to bone connectors
Thin filaments
Exoskeleton
Ligaments
A Band
45. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Red Marrow
Sarcoplasmic Reticulum
Origin
Isometric Contraction
46. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Cartilage
Cori Cycle
Concentric Contraction
A Band
47. Serves as the framework within all vertebrate organisms
Intramembranous Ossification
Cardiac Muscle Fibers
Osteon
Endoskeleton
48. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Sarcoplasmic Reticulum
Cartilage
Yellow marrow
Osteoclasts
49. Advance principally by the action of muscles on a hydrostatic skeleton
Isometric Contraction
Intramembranous Ossification
Segmented Worms (Annelids)
Axial Skeleton
50. State of partial contraction
Fiber
T system
Osteoblasts
Tonus