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. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Sarcomeres
Tendons
Concentric Contraction
Isometric Contraction
2. Multinucleated cell created by the fusion of several mononucleated embryonic cell
Endoskeleton
Skeletal Muscle
Fiber
Latent period
3. Cells responsible for synthesizing cartillage
Ligaments
I band
Chorondytes
Flatworms
4. Region containing thick filaments only
A Band
Temporal Summation
Skeletal Muscle
H zone
5. Stimulated by a message from the somatic nervous system sent via a motor neuron
Muscle Contraction
Spongy Bone
Isotonic Contraction
Origin
6. Attach skeletal muscle to bones and bend the skeleton at the movable joints
Osteoclasts
Sarcoplasmic Reticulum
Tendons
Extrapyramidal System
7. Large - multinucleated cells involved in bone resorption
Osteoclasts
Sarcomere
Spongy Bone
Isotonic Contraction
8. Provides channels for ion flow throughout the muscle fibers - and can also propagate an action potential
Muscles in Mammals
T system
Insertion
Osteon
9. Much less dense and consists of an interconnecting lattice of bony spicules
Spongy Bone
Tonus
Isometric Contraction
Simple Twhich
10. Type of dynamic contraction where the muscle fiber lengthens and the tension on the muscle increases
Myoglobin
Eccentric Contraction
Pyramidal System
Cardiac Muscle Fibers
11. 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
Red Marrow
Temporal Summation
Extrapyramidal System
Bone Formation
12. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Cartilage
ATP
Simple Twhich
Osteon
13. 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
Yellow marrow
Skeletal Muscle
Simple Twhich
Sarcomeres
14. Units of diveded myofibrils
Thin filaments
Sarcomeres
Sarcolemma
Sarcoplasmic Reticulum
15. Amoeba use for locomotion where the advancing cell membrane extends forward
Pseudopodia
Extrapyramidal System
Latent period
Osteon
16. 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
Extension
Cardiac Muscle Fibers
M line
17. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Segmented Worms (Annelids)
Sarcoplasmic Reticulum
Origin
Ligaments
18. Achieve movement by means of the power stroke -a thrusting movement generated by the sliding action of microtubules
Flagella
Tetanus
Sarcolemma
Skeletal Muscle
19. Chains of actin molecules
Tendons
ATP
Sarcomere
Thin filaments
20. Composed of organized bundles of myosin molecules
Extension
I band
Creatine Phosphate and ARginine Phosphate
Thick Filaments
21. 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
Insertion
Dynamic Contraction
Segmented Worms (Annelids)
22. 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
Sarcomere
Simple Twhich
Cartilage
23. Inactive and infiltrated by adipose tissue
Yellow marrow
Rig Mortis
Isotonic Contraction
Spongy Bone
24. Concentric circles of bony matrix
Lamellae
Temporal Summation
Intramembranous Ossification
Ligaments
25. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Rig Mortis
Intramembranous Ossification
Flatworms
Myoglobin
26. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
M line
Flagella
Cardiac Muscle Fibers
Myoglobin
27. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Endochondral Ossification
Creatine Phosphate and ARginine Phosphate
Skeletal Muscle
Osteoblasts
28. Skeletal muscle - smooth muscle - and cardia muscle
Muscles in Mammals
Cori Cycle
Axial Skeleton
Segmented Worms (Annelids)
29. Able to provide rapid commands to the skeletal muscles and variious other organs
Sarcomere
Pyramidal System
Flatworms
Isometric Contraction
30. 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
Thin filaments
Tendons
Rig Mortis
Origin
31. Occurs by either endochondral ossification or by intramembranous ossification
Myoglobin
Z line
Bone Formation
Thin filaments
32. Serve as bone to bone connectors
Osteon
Skeletal Muscle
Ligaments
Muscles in Mammals
33. Refers to a bending of a joint
ATP
Segmented Worms (Annelids)
Pyramidal System
Flexion
34. Define the boundaries of a single sacromere and anchor the thin filaments
Bone Formation
Sarcoplasmic Reticulum
Z line
Tetanus
35. State of partial contraction
Muscles in Mammals
Bone
Tonus
M line
36. The cavities in between the spicules are filled with yellow or red bone marrow
Latent period
Spicules
Extension
Neuromuscular Junction
37. The primary source of energy for muscle contraction
ATP
Creatine Phosphate and ARginine Phosphate
Spongy Bone
Eccentric Contraction
38. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Insertion
Lamellae
Endoskeleton
Cori Cycle
39. Striations of light and dark bands of skeletal muscle
Z line
ATP
Striated Muscle
Flatworms
40. Existing cartilage is replaced by bone
Creatine Phosphate and ARginine Phosphate
Endochondral Ossification
Segmented Worms (Annelids)
T system
41. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
I band
Creatine Phosphate and ARginine Phosphate
Smooth Muscle
Lamellae
42. Composed of thin and thick filaments
Concentric Contraction
Sarcomere
Myoglobin
Isotonic Contraction
43. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Cardiac Muscle Fibers
Sarcolemma
Bone
Flexion
44. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Sarcoplasmic Reticulum
Osteoblasts
H zone
Insertion
45. Occurs whne a muscle shortens against a fixed load while the tension on that remains constant
Isotonic Contraction
Tendons
Sarcomere
Myoglobin
46. Runs down the center of the sarcomere
Creatine Phosphate and ARginine Phosphate
Striated Muscle
Compact Bone
M line
47. Responsible for voluntary movements and is innervated by the somatic nervous system
Thin filaments
T system
M line
Skeletal Muscle
48. Time between stimulation and the onset of contraction
Sarcomeres
Latent period
Temporal Summation
Extrapyramidal System
49. Muscle tissues of the heart
Concentric Contraction
Sarcomere
Unicellular Locomotion
Cardiac Muscle Fibers
50. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Tetanus
Cartilage
Intramembranous Ossification
Absolute Refractory Period