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