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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. Able to provide rapid commands to the skeletal muscles and variious other organs
Pyramidal System
A Band
Compact Bone
Tonus
2. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Spicules
Sarcomeres
Cartilage
Flatworms
3. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Compact Bone
Segmented Worms (Annelids)
Tendons
Tetanus
4. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
A Band
M line
Flagella
Z line
5. The primary source of energy for muscle contraction
ATP
Rig Mortis
Insertion
M line
6. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Flagella
Concentric Contraction
ATP
Intramembranous Ossification
7. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Neuromuscular Junction
ATP
Axial Skeleton
Cartilage
8. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Absolute Refractory Period
Compact Bone
A Band
Myofibrils
9. Units of diveded myofibrils
Muscle Contraction
Spicules
Sarcomeres
Tetanus
10. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Fiber
Exoskeleton
Lamellae
Endoskeleton
11. Much less dense and consists of an interconnecting lattice of bony spicules
Cardiac Muscle Fibers
Cartilage
Spongy Bone
Origin
12. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
I band
Osteon
ATP
Flatworms
13. 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
Smooth Muscle
Intramembranous Ossification
Sarcolemma
14. Stimulated by a message from the somatic nervous system sent via a motor neuron
Muscle Contraction
ATP
Lamellae
Myoglobin
15. Serve as bone to bone connectors
Lamellae
Ligaments
Creatine Phosphate and ARginine Phosphate
Fiber
16. Skeletal muscle - smooth muscle - and cardia muscle
Axial Skeleton
Sarcoplasmic Reticulum
Muscles in Mammals
Endochondral Ossification
17. The region containing thin filaments only
Cardiac Muscle Fibers
I band
Muscle Contraction
Pseudopodia
18. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Cardiac Muscle Fibers
Fiber
Segmented Worms (Annelids)
Extrapyramidal System
19. 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
Flexion
Intramembranous Ossification
Bone
Spongy Bone
20. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Osteoclasts
Myofibrils
T system
Extrapyramidal System
21. Occurs by either endochondral ossification or by intramembranous ossification
Isotonic Contraction
ATP
Exoskeleton
Bone Formation
22. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Lamellae
Isotonic Contraction
Creatine Phosphate and ARginine Phosphate
Skeletal Muscle
23. 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
Cardiac Muscle Fibers
Muscle Contraction
Sarcomere
24. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Isotonic Contraction
Creatine Phosphate and ARginine Phosphate
Myoglobin
Muscles in Mammals
25. 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
Intramembranous Ossification
Eccentric Contraction
Spongy Bone
Simple Twhich
26. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Osteoclasts
Cardiac Muscle Fibers
A Band
Concentric Contraction
27. Advance principally by the action of muscles on a hydrostatic skeleton
Axial Skeleton
Segmented Worms (Annelids)
Bone
Flatworms
28. Responsible for voluntary movements and is innervated by the somatic nervous system
Skeletal Muscle
Temporal Summation
Isotonic Contraction
Spongy Bone
29. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Compact Bone
Spongy Bone
Fiber
Rig Mortis
30. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Ligaments
Insertion
Isometric Contraction
Origin
31. Amoeba use for locomotion where the advancing cell membrane extends forward
Extension
Yellow marrow
H zone
Pseudopodia
32. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Isotonic Contraction
A Band
Axial Skeleton
Osteoclasts
33. State of partial contraction
Simple Twhich
Tonus
Sarcomere
Bone Formation
34. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
T system
Thin filaments
Sarcolemma
Skeletal Muscle
35. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Cardiac Muscle Fibers
Isotonic Contraction
T system
Yellow marrow
36. Serves as the framework within all vertebrate organisms
Endoskeleton
Sarcomere
Temporal Summation
T system
37. Runs down the center of the sarcomere
Sarcomere
Tonus
M line
Sarcoplasmic Reticulum
38. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Concentric Contraction
Eccentric Contraction
Muscle Contraction
Cori Cycle
39. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Smooth Muscle
Osteon
Lamellae
Osteoblasts
40. Indicates a straightening of a join
Cardiac Muscle Fibers
Striated Muscle
Extension
Muscle Contraction
41. Time between stimulation and the onset of contraction
Osteoblasts
Thick Filaments
Latent period
Endochondral Ossification
42. Striations of light and dark bands of skeletal muscle
Thick Filaments
Sarcomere
I band
Striated Muscle
43. Large - multinucleated cells involved in bone resorption
ATP
Osteoclasts
Unicellular Locomotion
Pseudopodia
44. Cells responsible for synthesizing cartillage
Spongy Bone
Flatworms
Chorondytes
Unicellular Locomotion
45. Chains of actin molecules
Thin filaments
Endoskeleton
Osteoblasts
Flagella
46. Involved in blood cell formation
Red Marrow
Simple Twhich
Sarcomeres
Myoglobin
47. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Muscles in Mammals
Eccentric Contraction
A Band
Absolute Refractory Period
48. 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
T system
Bone Formation
49. The cavities in between the spicules are filled with yellow or red bone marrow
Creatine Phosphate and ARginine Phosphate
Spicules
Lamellae
Rig Mortis
50. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Extrapyramidal System
Tendons
Tonus