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