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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. Striations of light and dark bands of skeletal muscle
Striated Muscle
Cartilage
Insertion
Z line
2. 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
Flagella
Axial Skeleton
Insertion
Smooth Muscle
3. The primary source of energy for muscle contraction
Sarcomere
ATP
Intramembranous Ossification
Skeletal Muscle
4. Refers to a bending of a joint
Temporal Summation
Flexion
Cartilage
Tetanus
5. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
A Band
Fiber
Lamellae
Extension
6. Occurs by either endochondral ossification or by intramembranous ossification
Bone
Bone Formation
Concentric Contraction
Muscle Contraction
7. 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
Eccentric Contraction
Bone Formation
Temporal Summation
Isotonic Contraction
8. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Extrapyramidal System
Compact Bone
Axial Skeleton
H zone
9. Able to provide rapid commands to the skeletal muscles and variious other organs
Pyramidal System
Cartilage
Isometric Contraction
Intramembranous Ossification
10. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Tendons
Flatworms
Endochondral Ossification
Osteoclasts
11. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Eccentric Contraction
Cartilage
Myoglobin
Z line
12. 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
Segmented Worms (Annelids)
M line
Simple Twhich
Sarcolemma
13. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
T system
Spongy Bone
Osteoblasts
Extrapyramidal System
14. 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
Absolute Refractory Period
Eccentric Contraction
Dynamic Contraction
Red Marrow
15. Advance principally by the action of muscles on a hydrostatic skeleton
Rig Mortis
Lamellae
I band
Segmented Worms (Annelids)
16. Inactive and infiltrated by adipose tissue
Yellow marrow
Fiber
Thin filaments
Origin
17. The cavities in between the spicules are filled with yellow or red bone marrow
Extension
Axial Skeleton
Flagella
Spicules
18. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Exoskeleton
Tendons
Concentric Contraction
Isotonic Contraction
19. Stimulated by a message from the somatic nervous system sent via a motor neuron
Cartilage
Cori Cycle
Insertion
Muscle Contraction
20. State of partial contraction
Extrapyramidal System
Insertion
Tonus
Thin filaments
21. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Intramembranous Ossification
Red Marrow
Extrapyramidal System
Striated Muscle
22. Serves as the framework within all vertebrate organisms
Endoskeleton
Compact Bone
Flagella
T system
23. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Eccentric Contraction
Rig Mortis
Tonus
Cori Cycle
24. Runs down the center of the sarcomere
H zone
M line
Isotonic Contraction
Thin filaments
25. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Osteoblasts
Myoglobin
T system
Thin filaments
26. Involved in blood cell formation
Red Marrow
Extension
Dynamic Contraction
Z line
27. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Unicellular Locomotion
Insertion
Bone Formation
A Band
28. Chains of actin molecules
Thin filaments
Flexion
Temporal Summation
Thick Filaments
29. Region containing thick filaments only
Tonus
Pyramidal System
Concentric Contraction
H zone
30. Time between stimulation and the onset of contraction
Origin
Isometric Contraction
Latent period
Isotonic Contraction
31. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Flatworms
Compact Bone
Cartilage
Flagella
32. Skeletal muscle - smooth muscle - and cardia muscle
Concentric Contraction
Muscles in Mammals
Segmented Worms (Annelids)
Neuromuscular Junction
33. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Dynamic Contraction
Creatine Phosphate and ARginine Phosphate
Red Marrow
Muscles in Mammals
34. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Chorondytes
Unicellular Locomotion
Sarcoplasmic Reticulum
Bone
35. 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
I band
Flatworms
Tetanus
Pyramidal System
36. Units of diveded myofibrils
Isometric Contraction
Lamellae
Sarcomeres
Sarcolemma
37. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
I band
Cori Cycle
Cartilage
Pseudopodia
38. Concentric circles of bony matrix
Creatine Phosphate and ARginine Phosphate
Smooth Muscle
Insertion
Lamellae
39. Existing cartilage is replaced by bone
Spicules
T system
Endochondral Ossification
ATP
40. Much less dense and consists of an interconnecting lattice of bony spicules
Dynamic Contraction
Yellow marrow
Concentric Contraction
Spongy Bone
41. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Axial Skeleton
Bone Formation
Muscles in Mammals
Neuromuscular Junction
42. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Thin filaments
Isotonic Contraction
Isometric Contraction
Spongy Bone
43. 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
Rig Mortis
Tonus
Exoskeleton
44. Large - multinucleated cells involved in bone resorption
Isometric Contraction
Osteoclasts
Chorondytes
Muscles in Mammals
45. Cells responsible for synthesizing cartillage
Temporal Summation
ATP
Tonus
Chorondytes
46. Muscle tissues of the heart
Endoskeleton
Tonus
Axial Skeleton
Cardiac Muscle Fibers
47. Indicates a straightening of a join
Extension
Segmented Worms (Annelids)
Sarcomeres
Creatine Phosphate and ARginine Phosphate
48. Define the boundaries of a single sacromere and anchor the thin filaments
Pseudopodia
Ligaments
Spicules
Z line
49. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Tendons
Intramembranous Ossification
Isotonic Contraction
Flexion
50. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Absolute Refractory Period
Eccentric Contraction
Ligaments
Concentric Contraction