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Test your basic knowledge |
PCAT Biology Muscles And Locomotion
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Subjects
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pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
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.
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. Inactive and infiltrated by adipose tissue
Absolute Refractory Period
Yellow marrow
Chorondytes
Myofibrils
2. Advance principally by the action of muscles on a hydrostatic skeleton
Absolute Refractory Period
Segmented Worms (Annelids)
Flatworms
Cardiac Muscle Fibers
3. Filaments embedded in fibers of muscles - which are divided into sarcomeres
M line
Myofibrils
Extension
Rig Mortis
4. Define the boundaries of a single sacromere and anchor the thin filaments
Dynamic Contraction
Yellow marrow
Rig Mortis
Z line
5. Involved in blood cell formation
Rig Mortis
Muscles in Mammals
Compact Bone
Red Marrow
6. Move by beating cilia or flagella
Skeletal Muscle
Unicellular Locomotion
Myoglobin
Osteon
7. Region containing thick filaments only
Cardiac Muscle Fibers
Axial Skeleton
Neuromuscular Junction
H zone
8. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Tendons
Bone
Extrapyramidal System
Spicules
9. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Osteon
Spicules
Segmented Worms (Annelids)
Eccentric Contraction
10. Large - multinucleated cells involved in bone resorption
Fiber
Osteoclasts
Absolute Refractory Period
Thick Filaments
11. Chains of actin molecules
Spicules
Thin filaments
Cartilage
Endoskeleton
12. Striations of light and dark bands of skeletal muscle
Compact Bone
Flatworms
Striated Muscle
Intramembranous Ossification
13. Serve as bone to bone connectors
Bone Formation
Ligaments
Spicules
Striated Muscle
14. Stimulated by a message from the somatic nervous system sent via a motor neuron
Red Marrow
ATP
H zone
Muscle Contraction
15. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Osteoclasts
Latent period
Unicellular Locomotion
Osteon
16. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Neuromuscular Junction
Origin
Cartilage
Eccentric Contraction
17. Time between stimulation and the onset of contraction
Latent period
Concentric Contraction
Striated Muscle
ATP
18. Cells responsible for synthesizing cartillage
Osteoblasts
Extension
Muscles in Mammals
Chorondytes
19. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Osteoblasts
Flatworms
Endoskeleton
H zone
20. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Compact Bone
Spicules
Insertion
Thick Filaments
21. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Myoglobin
Bone
Osteoblasts
T system
22. Responsible for voluntary movements and is innervated by the somatic nervous system
Skeletal Muscle
Yellow marrow
Fiber
Cori Cycle
23. Refers to a bending of a joint
Flexion
Isotonic Contraction
Sarcomere
Cori Cycle
24. Existing cartilage is replaced by bone
Cori Cycle
Endochondral Ossification
Cartilage
Muscle Contraction
25. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Sarcoplasmic Reticulum
Sarcomeres
Intramembranous Ossification
Sarcolemma
26. The region containing thin filaments only
Segmented Worms (Annelids)
Flatworms
I band
Isotonic Contraction
27. Concentric circles of bony matrix
Origin
Dynamic Contraction
Lamellae
ATP
28. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
T system
Axial Skeleton
Exoskeleton
Flatworms
29. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Spongy Bone
Thick Filaments
Fiber
A Band
30. 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
Extrapyramidal System
Tonus
Lamellae
31. 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
Absolute Refractory Period
Concentric Contraction
Rig Mortis
Pseudopodia
32. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Flagella
Neuromuscular Junction
Fiber
Tendons
33. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Sarcoplasmic Reticulum
Eccentric Contraction
Extrapyramidal System
Ligaments
34. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Cartilage
Osteoclasts
Insertion
Pyramidal System
35. Runs down the center of the sarcomere
Lamellae
M line
Extrapyramidal System
Segmented Worms (Annelids)
36. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Exoskeleton
A Band
Bone Formation
Rig Mortis
37. Skeletal muscle - smooth muscle - and cardia muscle
Muscles in Mammals
Insertion
Spicules
Chorondytes
38. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Sarcomere
Endochondral Ossification
Creatine Phosphate and ARginine Phosphate
Pseudopodia
39. 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
T system
Osteoblasts
Dynamic Contraction
Segmented Worms (Annelids)
40. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Rig Mortis
Spongy Bone
Concentric Contraction
Isotonic Contraction
41. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Osteoblasts
Osteoclasts
Myoglobin
Insertion
42. Indicates a straightening of a join
Muscle Contraction
Extension
Osteoclasts
Fiber
43. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Cardiac Muscle Fibers
Dynamic Contraction
Tonus
Axial Skeleton
44. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Isotonic Contraction
Bone Formation
Compact Bone
T system
45. The primary source of energy for muscle contraction
Segmented Worms (Annelids)
Intramembranous Ossification
ATP
Osteoclasts
46. 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
Sarcomeres
Muscle Contraction
Endoskeleton
Tetanus
47. Units of diveded myofibrils
Sarcomere
Eccentric Contraction
Sarcomeres
Lamellae
48. Serves as the framework within all vertebrate organisms
Bone Formation
I band
Creatine Phosphate and ARginine Phosphate
Endoskeleton
49. 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
Bone
Exoskeleton
H zone
50. Occurs by either endochondral ossification or by intramembranous ossification
Sarcolemma
Axial Skeleton
Rig Mortis
Bone Formation