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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. 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
H zone
Creatine Phosphate and ARginine Phosphate
Thin filaments
Smooth Muscle
2. 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
Dynamic Contraction
Sarcomere
Osteoblasts
Thin filaments
3. The cavities in between the spicules are filled with yellow or red bone marrow
Red Marrow
Spicules
Thin filaments
Bone Formation
4. 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
Sarcomeres
Intramembranous Ossification
Cori Cycle
Bone
5. Chains of actin molecules
Temporal Summation
Cardiac Muscle Fibers
Thin filaments
Flexion
6. State of partial contraction
Segmented Worms (Annelids)
Absolute Refractory Period
Tonus
Spicules
7. Dense bone that does not appear to have any cavities when observed with the naked -bony matrix is deposited in structural units called osteons
ATP
Pseudopodia
Compact Bone
Red Marrow
8. Muscle tissues of the heart
Flexion
Sarcomeres
Cardiac Muscle Fibers
Rig Mortis
9. Stimulated by a message from the somatic nervous system sent via a motor neuron
H zone
Spongy Bone
Chorondytes
Muscle Contraction
10. Filaments embedded in fibers of muscles - which are divided into sarcomeres
Exoskeleton
Tonus
Concentric Contraction
Myofibrils
11. Define the boundaries of a single sacromere and anchor the thin filaments
Myofibrils
Z line
Neuromuscular Junction
Eccentric Contraction
12. Refers to a bending of a joint
Flexion
Myoglobin
Red Marrow
Osteon
13. Type of connective tissue that is softer and more flexible than bone -retained in adults in places where firmness and flexibility are needed
Unicellular Locomotion
Extrapyramidal System
Cartilage
Latent period
14. Skeletal muscle - smooth muscle - and cardia muscle
Endoskeleton
Ligaments
Sarcoplasmic Reticulum
Muscles in Mammals
15. Runs down the center of the sarcomere
Neuromuscular Junction
Exoskeleton
M line
Endoskeleton
16. Concentric circles of bony matrix
Muscles in Mammals
Endoskeleton
Axial Skeleton
Lamellae
17. Responsible for voluntary movements and is innervated by the somatic nervous system
Intramembranous Ossification
Thin filaments
Simple Twhich
Skeletal Muscle
18. Consists of a central microscopic channel called a Haversian Canal - surrounded by a number of lamellae
Unicellular Locomotion
Osteon
Red Marrow
Chorondytes
19. Cells responsible for synthesizing cartillage
Tendons
Sarcolemma
Sarcoplasmic Reticulum
Chorondytes
20. Inactive and infiltrated by adipose tissue
Yellow marrow
Tetanus
Red Marrow
Muscles in Mammals
21. Type of dynamic contraction where the muscle fibers shorten and the tension on the muscle increases
Concentric Contraction
Tendons
Pyramidal System
Sarcomere
22. Synthesize and secrete the organic constituents of the bone matrix; once they have become surrounded by their matrix - they mature into osteocytes
Unicellular Locomotion
Sarcomere
Osteoblasts
H zone
23. Link between the nerve terminal (synaptic bouton( and the sarcolemma of the muscle fiber
Cori Cycle
Eccentric Contraction
Neuromuscular Junction
Sarcomeres
24. Modified endoplasmic reticulum that stores calcium ions that envelop myofibrils
Cartilage
Tetanus
Flagella
Sarcoplasmic Reticulum
25. Striations of light and dark bands of skeletal muscle
Sarcolemma
Pseudopodia
Striated Muscle
Exoskeleton
26. 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
Isometric Contraction
Tendons
Rig Mortis
M line
27. Advance principally by the action of muscles on a hydrostatic skeleton
Cori Cycle
Myofibrils
Segmented Worms (Annelids)
Tendons
28. Amoeba use for locomotion where the advancing cell membrane extends forward
Pseudopodia
Chorondytes
Endoskeleton
Origin
29. Composed of thin and thick filaments
Isometric Contraction
Sarcomere
Endoskeleton
Extension
30. Centers that can issue somatic motor commands as a result of processing performed at the unconscious - involuntary level
Muscle Contraction
Isotonic Contraction
Pyramidal System
Extrapyramidal System
31. Move by beating cilia or flagella
Pseudopodia
Unicellular Locomotion
Striated Muscle
Neuromuscular Junction
32. Time between stimulation and the onset of contraction
Sarcoplasmic Reticulum
Yellow marrow
Latent period
Myofibrils
33. The basic framework of the body - consisting of the skull - vertebral column - and the rib cage
Creatine Phosphate and ARginine Phosphate
Axial Skeleton
A Band
Compact Bone
34. HGb-like protein found in muscle tissue -has a high oxygen affinity and maintains the oxygen supply in muscles by bind oxygen tightly
Myoglobin
Z line
Insertion
Tonus
35. Much less dense and consists of an interconnecting lattice of bony spicules
Flexion
Absolute Refractory Period
Extrapyramidal System
Spongy Bone
36. Capable of propagating an action potential and is connected to a system of transverse tubules (T system) oriented perpendicularly to the myofibrils
Spongy Bone
Sarcolemma
Bone Formation
Origin
37. The primary source of energy for muscle contraction
ATP
Smooth Muscle
Lamellae
Striated Muscle
38. Occurs by either endochondral ossification or by intramembranous ossification
Exoskeleton
Fiber
Endochondral Ossification
Bone Formation
39. Purpose is to convert lactic acid in the liver to glucose for discharge into the bloodstream during period of strenuous activity
Isometric Contraction
Latent period
Cori Cycle
Dynamic Contraction
40. Able to provide rapid commands to the skeletal muscles and variious other organs
Flexion
Pyramidal System
Tendons
Osteoblasts
41. Mesenchymal (embryonic or undifferentiated) connective tissue is transformed into - and replaced by - bone
Neuromuscular Junction
Bone Formation
Intramembranous Ossification
Flexion
42. 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
Spongy Bone
Smooth Muscle
Latent period
43. After the contraction period - this is a brief relaxation period in which the muscle is unresponsive to a stimulus
Flexion
Isometric Contraction
Absolute Refractory Period
Z line
44. Involved in blood cell formation
Eccentric Contraction
Sarcolemma
Endoskeleton
Red Marrow
45. In vertebrates and some invertebrates - particularly echinoderms - energy can be temporarily stored in a high-energy compound
Creatine Phosphate and ARginine Phosphate
Neuromuscular Junction
Z line
Segmented Worms (Annelids)
46. Attach skeletal muscle to bones and bend the skeleton at the movable joints
H zone
Tonus
Tendons
Eccentric Contraction
47. Muscles contract against the resistance of the incompressible fluid within the animal's tissues (this fluid is termed the hydrostatic skeleton)
Creatine Phosphate and ARginine Phosphate
Endochondral Ossification
Flatworms
Sarcomeres
48. Large - multinucleated cells involved in bone resorption
Osteon
Myofibrils
Tendons
Osteoclasts
49. 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
Flagella
Temporal Summation
Cartilage
Unicellular Locomotion
50. Point of attachment of a muscle to a stationary bone (the proximal end in limb muscles)
Ligaments
Origin
Thick Filaments
Creatine Phosphate and ARginine Phosphate