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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. 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
Origin
Smooth Muscle
Simple Twhich
Fiber
2. Serve as bone to bone connectors
Isotonic Contraction
Rig Mortis
Ligaments
Chorondytes
3. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Exoskeleton
Latent period
Thin filaments
Neuromuscular Junction
4. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Unicellular Locomotion
Sarcomeres
T system
Myofibrils
5. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Cori Cycle
Axial Skeleton
Tendons
Neuromuscular Junction
6. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
M line
Latent period
Flatworms
Exoskeleton
7. Involved in blood cell formation
Skeletal Muscle
Cardiac Muscle Fibers
Myofibrils
Red Marrow
8. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Osteoclasts
Flagella
Latent period
Cartilage
9. 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
Simple Twhich
Tetanus
Lamellae
Endochondral Ossification
10. Muscle tissues of the heart
Cardiac Muscle Fibers
Creatine Phosphate and ARginine Phosphate
H zone
Absolute Refractory Period
11. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Creatine Phosphate and ARginine Phosphate
Myofibrils
Sarcolemma
Sarcomere
12. 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
Cori Cycle
Compact Bone
Dynamic Contraction
13. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Rig Mortis
Spongy Bone
Fiber
Cardiac Muscle Fibers
14. 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
Sarcoplasmic Reticulum
Flexion
Segmented Worms (Annelids)
15. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Myofibrils
Extension
A Band
Spicules
16. Occurs by either endochondral ossification or by intramembranous ossification
Tetanus
Bone Formation
Tendons
Cori Cycle
17. Define the boundaries of a single sacromere and anchor the thin filaments
Sarcoplasmic Reticulum
Z line
Endochondral Ossification
Tetanus
18. Stimulated by a message from the somatic nervous system sent via a motor neuron
Sarcoplasmic Reticulum
Muscle Contraction
Cartilage
Thick Filaments
19. State of partial contraction
Thin filaments
Tonus
Exoskeleton
Isotonic Contraction
20. 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
Yellow marrow
Flexion
Dynamic Contraction
Cardiac Muscle Fibers
21. Composed of organized bundles of myosin molecules
Osteon
Eccentric Contraction
Isometric Contraction
Thick Filaments
22. Refers to a bending of a joint
T system
Flagella
Thin filaments
Flexion
23. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Temporal Summation
A Band
Osteon
Concentric Contraction
24. Responsible for voluntary movements and is innervated by the somatic nervous system
Sarcolemma
Insertion
Skeletal Muscle
Pyramidal System
25. Runs down the center of the sarcomere
Chorondytes
M line
Exoskeleton
Extrapyramidal System
26. Move by beating cilia or flagella
Osteon
Unicellular Locomotion
Sarcolemma
Compact Bone
27. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Isotonic Contraction
Sarcoplasmic Reticulum
Tetanus
Bone
28. Inactive and infiltrated by adipose tissue
Endochondral Ossification
Yellow marrow
Spongy Bone
Ligaments
29. Units of diveded myofibrils
Sarcomeres
Origin
Osteon
Osteoblasts
30. Advance principally by the action of muscles on a hydrostatic skeleton
Chorondytes
Muscle Contraction
Cori Cycle
Segmented Worms (Annelids)
31. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Extrapyramidal System
Neuromuscular Junction
Pseudopodia
Isotonic Contraction
32. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Extrapyramidal System
Sarcoplasmic Reticulum
Exoskeleton
Striated Muscle
33. Serves as the framework within all vertebrate organisms
Osteoclasts
Extrapyramidal System
Endoskeleton
Dynamic Contraction
34. Existing cartilage is replaced by bone
Endochondral Ossification
Lamellae
Bone
Dynamic Contraction
35. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Sarcomere
Ligaments
A Band
Dynamic Contraction
36. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Creatine Phosphate and ARginine Phosphate
Unicellular Locomotion
Osteoblasts
H zone
37. Composed of thin and thick filaments
Osteoblasts
Extrapyramidal System
Skeletal Muscle
Sarcomere
38. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Latent period
Intramembranous Ossification
Osteoblasts
Tonus
39. 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
Pseudopodia
Skeletal Muscle
Unicellular Locomotion
40. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Red Marrow
Concentric Contraction
T system
Flagella
41. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Compact Bone
Insertion
Endochondral Ossification
Neuromuscular Junction
42. 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
Unicellular Locomotion
Rig Mortis
Spongy Bone
Z line
43. Striations of light and dark bands of skeletal muscle
Sarcomere
Striated Muscle
Isometric Contraction
Insertion
44. Indicates a straightening of a join
Bone Formation
Extension
Creatine Phosphate and ARginine Phosphate
Fiber
45. Cells responsible for synthesizing cartillage
Isometric Contraction
Chorondytes
Compact Bone
Spongy Bone
46. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Sarcolemma
Flagella
Insertion
Segmented Worms (Annelids)
47. Region containing thick filaments only
Myofibrils
H zone
Thick Filaments
Myoglobin
48. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Compact Bone
Absolute Refractory Period
Creatine Phosphate and ARginine Phosphate
Isotonic Contraction
49. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Pyramidal System
Myofibrils
Myoglobin
Neuromuscular Junction
50. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
I band
Extension
Origin
Thick Filaments