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