Which joint does NOT belong with the others?
A) elbow
B) ankle
C) wrist
D) interphalangeal (toes)
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Question 2) In the classification of joints, which of the following is true?
A) In cartilaginous joints, a joint cavity is present.
B) All synovial joints are freely movable.
C) Synarthrotic joints are slightly movable.
D) Immovable joints are called amphiarthroses.
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Question 3) The sliding filament model of contraction involves ________.
A) actin and myosin lengthening in order to slide past each other
B) the Z discs sliding over the myofilaments
C) actin and myosin sliding past each other and partially overlapping
D) the shortening of thick filaments so that thin filaments slide past
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Question 4) The type of joint between the carpal (trapezium) and the first metacarpal is a ________ joint.
A) saddle
B) hinge
C) condylar
D) plane
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Question 5) Muscle tone is ________.
A) the condition of athletes after intensive training
B) a state of sustained partial contraction
C) the ability of a muscle to efficiently cause skeletal movements
D) the feeling of well-being following exercise
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Question 6) An individual with a double-jointed thumb can pull it back towards the wrist much farther than normal. What does it mean to be double-jointed?
A) the additional joint present doubles the range of motion
B) articular cartilage at bone ends is replaced with hyaline cartilage
C) greater than normal production of serous fluid lubricates the joint and extends it
D) the joint capsules and ligaments are more stretchy and loose than normal
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Question 7) Muscle tone is the small amount of tautness or tension in the muscle due to weak, involuntary contractions of its motor units.
Indicate whether the statement is true or false
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Question 8) An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is ________.
A) glycolysis
B) the electron transport chain
C) the citric acid cycle
D) hydrolysis
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Question 9) Bending your head back until it hurts is an example of ________.
A) circumduction
B) extension
C) hyperextension
D) flexion
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Question 10) Although there are no sarcomeres, smooth muscle still possesses thick and thin filaments.
Indicate whether the statement is true or false
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