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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.
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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. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Creatine Phosphate and ARginine Phosphate
Intramembranous Ossification
Axial Skeleton
Skeletal Muscle
2. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Temporal Summation
Lamellae
Bone Formation
Sarcoplasmic Reticulum
3. The cavities in between the spicules are filled with yellow or red bone marrow
Spicules
Muscle Contraction
Bone
Axial Skeleton
4. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Chorondytes
Bone
Simple Twhich
Myofibrils
5. The region containing thin filaments only
I band
Flexion
Tetanus
Eccentric Contraction
6. Existing cartilage is replaced by bone
Flexion
Endochondral Ossification
Myoglobin
Myofibrils
7. 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
Cori Cycle
Origin
Muscle Contraction
8. Much less dense and consists of an interconnecting lattice of bony spicules
Sarcoplasmic Reticulum
Cartilage
Cardiac Muscle Fibers
Spongy Bone
9. 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
Tendons
Cardiac Muscle Fibers
Dynamic Contraction
Isometric Contraction
10. Large - multinucleated cells involved in bone resorption
Osteoclasts
Intramembranous Ossification
Unicellular Locomotion
Latent period
11. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Compact Bone
Unicellular Locomotion
Ligaments
Cartilage
12. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Osteoblasts
Spongy Bone
Fiber
Rig Mortis
13. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Unicellular Locomotion
Rig Mortis
Cori Cycle
Exoskeleton
14. Involved in blood cell formation
Red Marrow
Unicellular Locomotion
Neuromuscular Junction
Compact Bone
15. Skeletal muscle - smooth muscle - and cardia muscle
A Band
Sarcomere
Muscles in Mammals
Pseudopodia
16. Concentric circles of bony matrix
Myofibrils
Tonus
I band
Lamellae
17. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Segmented Worms (Annelids)
Isometric Contraction
Endochondral Ossification
Unicellular Locomotion
18. Refers to a bending of a joint
Creatine Phosphate and ARginine Phosphate
Flexion
Lamellae
Striated Muscle
19. Move by beating cilia or flagella
H zone
Concentric Contraction
T system
Unicellular Locomotion
20. Able to provide rapid commands to the skeletal muscles and variious other organs
Simple Twhich
Endoskeleton
Pyramidal System
Yellow marrow
21. Occurs by either endochondral ossification or by intramembranous ossification
Exoskeleton
Bone Formation
Flatworms
Flexion
22. 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
Bone
Spongy Bone
Neuromuscular Junction
Compact Bone
23. Chains of actin molecules
Thin filaments
Insertion
Fiber
Unicellular Locomotion
24. Region containing thick filaments only
Striated Muscle
Tonus
H zone
Eccentric Contraction
25. 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
Fiber
Osteon
Temporal Summation
Sarcoplasmic Reticulum
26. Composed of thin and thick filaments
Sarcomere
Tonus
ATP
Pyramidal System
27. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Pyramidal System
Smooth Muscle
Red Marrow
T system
28. Indicates a straightening of a join
Compact Bone
Extension
Exoskeleton
Thick Filaments
29. 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
Red Marrow
Temporal Summation
Sarcolemma
Smooth Muscle
30. State of partial contraction
Tonus
Cori Cycle
Tendons
Extension
31. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Insertion
I band
A Band
Sarcolemma
32. Striations of light and dark bands of skeletal muscle
Unicellular Locomotion
Striated Muscle
Pyramidal System
Yellow marrow
33. 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
Axial Skeleton
Sarcoplasmic Reticulum
Rig Mortis
34. Units of diveded myofibrils
Thin filaments
Flatworms
Sarcomeres
Myofibrils
35. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Segmented Worms (Annelids)
Eccentric Contraction
Yellow marrow
Fiber
36. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Spongy Bone
Bone Formation
Extension
Tendons
37. Responsible for voluntary movements and is innervated by the somatic nervous system
Rig Mortis
Tetanus
Skeletal Muscle
Flagella
38. Composed of organized bundles of myosin molecules
Muscle Contraction
Thick Filaments
Osteoclasts
Latent period
39. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Neuromuscular Junction
Spongy Bone
Cardiac Muscle Fibers
A Band
40. Inactive and infiltrated by adipose tissue
Osteoblasts
Spongy Bone
Yellow marrow
Compact Bone
41. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Bone Formation
Intramembranous Ossification
Rig Mortis
Dynamic Contraction
42. Serve as bone to bone connectors
Sarcoplasmic Reticulum
Ligaments
Unicellular Locomotion
Flatworms
43. The primary source of energy for muscle contraction
ATP
Endoskeleton
Striated Muscle
Red Marrow
44. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Concentric Contraction
Segmented Worms (Annelids)
Lamellae
Sarcomere
45. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Lamellae
Osteon
Fiber
Simple Twhich
46. 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
Cori Cycle
Temporal Summation
Pseudopodia
Rig Mortis
47. Advance principally by the action of muscles on a hydrostatic skeleton
Intramembranous Ossification
Isotonic Contraction
Cori Cycle
Segmented Worms (Annelids)
48. Amoeba use for locomotion where the advancing cell membrane extends forward
Thin filaments
Pseudopodia
ATP
M line
49. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Thin filaments
Simple Twhich
Origin
Creatine Phosphate and ARginine Phosphate
50. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Segmented Worms (Annelids)
M line
Compact Bone
Neuromuscular Junction