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. 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
Concentric Contraction
Osteon
Cori Cycle
Tetanus
2. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Rig Mortis
Cartilage
Osteoblasts
Concentric Contraction
3. State of partial contraction
Extension
Bone Formation
Tonus
Lamellae
4. Able to provide rapid commands to the skeletal muscles and variious other organs
Osteoclasts
Sarcoplasmic Reticulum
Pyramidal System
Rig Mortis
5. Concentric circles of bony matrix
Sarcomeres
Skeletal Muscle
Cartilage
Lamellae
6. Occurs when both ends of the muscle are fixed and no change in length occurs during the contraction - but the tension increases
Isometric Contraction
Skeletal Muscle
Pseudopodia
Intramembranous Ossification
7. Stimulated by a message from the somatic nervous system sent via a motor neuron
Rig Mortis
Osteon
Pyramidal System
Muscle Contraction
8. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Bone Formation
Origin
Red Marrow
Concentric Contraction
9. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Osteoblasts
Bone Formation
Muscle Contraction
Spicules
10. Striations of light and dark bands of skeletal muscle
Striated Muscle
Tendons
Flatworms
Cardiac Muscle Fibers
11. Spans the entire length of the thick filaments and any overlapping portions of the thin filaments
Osteon
A Band
Dynamic Contraction
Flexion
12. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Red Marrow
Chorondytes
Spongy Bone
Intramembranous Ossification
13. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Fiber
Intramembranous Ossification
Sarcolemma
Origin
14. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Myofibrils
Endochondral Ossification
Cori Cycle
Eccentric Contraction
15. Region containing thick filaments only
Bone
Exoskeleton
H zone
Endochondral Ossification
16. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Absolute Refractory Period
Eccentric Contraction
Axial Skeleton
Creatine Phosphate and ARginine Phosphate
17. 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
Cartilage
Thin filaments
Neuromuscular Junction
18. Runs down the center of the sarcomere
Thick Filaments
M line
Extrapyramidal System
Compact Bone
19. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Sarcomere
Pseudopodia
Osteoclasts
Osteon
20. 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
Smooth Muscle
Rig Mortis
ATP
Insertion
21. Cells responsible for synthesizing cartillage
Chorondytes
Extension
Isometric Contraction
Bone
22. Inactive and infiltrated by adipose tissue
ATP
Sarcomeres
Flatworms
Yellow marrow
23. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Myoglobin
Sarcomeres
Creatine Phosphate and ARginine Phosphate
Simple Twhich
24. Indicates a straightening of a join
Temporal Summation
Compact Bone
Extension
Rig Mortis
25. Occurs by either endochondral ossification or by intramembranous ossification
Skeletal Muscle
Sarcoplasmic Reticulum
Z line
Bone Formation
26. Point of attachment of a muscle to the bone that moves (distal end in limb muscles)
Spicules
Isotonic Contraction
Insertion
Sarcomere
27. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Rig Mortis
Tendons
Absolute Refractory Period
Myofibrils
28. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
Endoskeleton
Intramembranous Ossification
Insertion
Compact Bone
29. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Thick Filaments
Flagella
Sarcomeres
Endoskeleton
30. Define the boundaries of a single sacromere and anchor the thin filaments
Z line
Spongy Bone
Dynamic Contraction
Eccentric Contraction
31. Move by beating cilia or flagella
Bone Formation
Origin
Intramembranous Ossification
Unicellular Locomotion
32. Serve as bone to bone connectors
Muscle Contraction
Ligaments
Osteoclasts
A Band
33. Existing cartilage is replaced by bone
Z line
Endochondral Ossification
Yellow marrow
Smooth Muscle
34. Responsible for voluntary movements and is innervated by the somatic nervous system
Flagella
Fiber
Skeletal Muscle
I band
35. Muscle tissues of the heart
Cardiac Muscle Fibers
Flexion
Simple Twhich
Isotonic Contraction
36. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Skeletal Muscle
Endochondral Ossification
Origin
Cori Cycle
37. Refers to a bending of a joint
Bone Formation
Flexion
Thick Filaments
Myoglobin
38. Chains of actin molecules
Skeletal Muscle
Thin filaments
Flatworms
Latent period
39. Skeletal muscle - smooth muscle - and cardia muscle
Compact Bone
Muscles in Mammals
Osteon
Pseudopodia
40. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Myoglobin
Simple Twhich
Z line
T system
41. Much less dense and consists of an interconnecting lattice of bony spicules
Spongy Bone
Osteoclasts
Sarcolemma
Isometric Contraction
42. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Bone
Myoglobin
Isotonic Contraction
Muscles in Mammals
43. Composed of organized bundles of myosin molecules
Muscles in Mammals
Bone
Thick Filaments
Pyramidal System
44. Involved in blood cell formation
Muscle Contraction
Red Marrow
Sarcolemma
Absolute Refractory Period
45. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Temporal Summation
Ligaments
Myoglobin
Sarcolemma
46. The cavities in between the spicules are filled with yellow or red bone marrow
Bone Formation
Temporal Summation
H zone
Spicules
47. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Cardiac Muscle Fibers
Endochondral Ossification
Bone Formation
Axial Skeleton
48. Units of diveded myofibrils
Pseudopodia
Cori Cycle
Sarcomere
Sarcomeres
49. Serves as the framework within all vertebrate organisms
Smooth Muscle
H zone
Z line
Endoskeleton
50. 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
Sarcomere
Simple Twhich
Unicellular Locomotion
Flexion