SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
PCAT Biology Muscles And Locomotion
Start Test
Study First
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. Refers to a bending of a joint
Flexion
Pseudopodia
Neuromuscular Junction
Muscle Contraction
2. Occurs by either endochondral ossification or by intramembranous ossification
Absolute Refractory Period
Bone Formation
Isometric Contraction
Isotonic Contraction
3. Stimulated by a message from the somatic nervous system sent via a motor neuron
Flexion
M line
Chorondytes
Muscle Contraction
4. Chains of actin molecules
Spongy Bone
Striated Muscle
Exoskeleton
Thin filaments
5. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Isometric Contraction
Flagella
Red Marrow
Eccentric Contraction
6. State of partial contraction
Absolute Refractory Period
Red Marrow
Cardiac Muscle Fibers
Tonus
7. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Muscles in Mammals
Absolute Refractory Period
Fiber
Flatworms
8. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Tendons
Insertion
Myofibrils
Creatine Phosphate and ARginine Phosphate
9. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Sarcoplasmic Reticulum
Tonus
Isometric Contraction
Intramembranous Ossification
10. 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
Cori Cycle
Fiber
Bone
ATP
11. Much less dense and consists of an interconnecting lattice of bony spicules
Flexion
Bone
Spongy Bone
Smooth Muscle
12. Composed of thin and thick filaments
Extrapyramidal System
Endochondral Ossification
Sarcomere
Yellow marrow
13. Involved in blood cell formation
Extrapyramidal System
Red Marrow
I band
H zone
14. Attach skeletal muscle to bones and bend the skeleton at the movable joints
H zone
Simple Twhich
Tendons
Exoskeleton
15. 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
Muscles in Mammals
Tonus
Pyramidal System
Rig Mortis
16. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Yellow marrow
Compact Bone
Striated Muscle
Osteon
17. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Muscle Contraction
Cardiac Muscle Fibers
A Band
Flexion
18. Serves as the framework within all vertebrate organisms
Osteon
Endoskeleton
Latent period
Rig Mortis
19. Striations of light and dark bands of skeletal muscle
Striated Muscle
Spicules
Flexion
Osteoclasts
20. Move by beating cilia or flagella
Extension
Exoskeleton
Unicellular Locomotion
Simple Twhich
21. The cavities in between the spicules are filled with yellow or red bone marrow
Unicellular Locomotion
Intramembranous Ossification
Sarcolemma
Spicules
22. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Creatine Phosphate and ARginine Phosphate
Dynamic Contraction
T system
Sarcomere
23. Amoeba use for locomotion where the advancing cell membrane extends forward
Pseudopodia
Bone
Compact Bone
Chorondytes
24. 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
Pyramidal System
Cartilage
Thin filaments
Dynamic Contraction
25. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Muscle Contraction
Ligaments
Sarcolemma
Concentric Contraction
26. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Spicules
Osteoblasts
T system
I band
27. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Temporal Summation
Flagella
Red Marrow
Osteon
28. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Cartilage
Rig Mortis
Ligaments
Z line
29. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Endochondral Ossification
Myoglobin
Spicules
Bone
30. Units of diveded myofibrils
Latent period
Insertion
Sarcomeres
Rig Mortis
31. Skeletal muscle - smooth muscle - and cardia muscle
Isometric Contraction
Flagella
Muscles in Mammals
Neuromuscular Junction
32. 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
M line
Tendons
Simple Twhich
Tonus
33. Large - multinucleated cells involved in bone resorption
Osteoclasts
Temporal Summation
Intramembranous Ossification
Yellow marrow
34. Concentric circles of bony matrix
Cori Cycle
Tendons
Lamellae
A Band
35. 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
Temporal Summation
Cartilage
Intramembranous Ossification
Flatworms
36. Muscle tissues of the heart
Compact Bone
Cardiac Muscle Fibers
Simple Twhich
Osteon
37. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Absolute Refractory Period
Endoskeleton
Flagella
Ligaments
38. Cells responsible for synthesizing cartillage
I band
Chorondytes
Z line
Temporal Summation
39. A hard skeleton that covers all muscles and organs of some invertebrates -found principally in arthropods -composed of noncellular material secreted by the epidermis
Exoskeleton
Muscle Contraction
Cardiac Muscle Fibers
Flexion
40. Indicates a straightening of a join
Sarcomeres
Ligaments
Extension
Bone Formation
41. Region containing thick filaments only
Bone Formation
Extrapyramidal System
H zone
Sarcomere
42. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Tonus
Fiber
Simple Twhich
43. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Cartilage
Smooth Muscle
Insertion
Striated Muscle
44. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
I band
Flagella
Smooth Muscle
Origin
45. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Flatworms
Thin filaments
Cori Cycle
Lamellae
46. Serve as bone to bone connectors
Axial Skeleton
Cori Cycle
Ligaments
I band
47. Responsible for voluntary movements and is innervated by the somatic nervous system
Skeletal Muscle
Smooth Muscle
Sarcolemma
T system
48. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Simple Twhich
Extrapyramidal System
Neuromuscular Junction
Smooth Muscle
49. Runs down the center of the sarcomere
Flagella
M line
Neuromuscular Junction
Latent period
50. The primary source of energy for muscle contraction
Concentric Contraction
ATP
Isotonic Contraction
Dynamic Contraction