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Hole's Human Anatomy & Physiology, 9/e

David Shier, Washtenaw Community College
Ricki Lewis, The University at Albany
Jackie Butler, Grayson County Community College

Muscular System

True/False Quiz

Please answer all questions


1	Tenosynovitis is an inflammation of the connective tissue associated with muscles.
		A)	True
		B)	False


2	Treatment for compartment syndrome may involve a fasciotomy.
		A)	True
		B)	False


3	The myofilaments are comprised of myofibril units.
		A)	True
		B)	False


4	The motor end plate is the specialized thickened membrane of the muscle fiber.
		A)	True
		B)	False


5	The tropomyosin-troponin complexes block the active sites on the actin preventing the contraction.
		A)	True
		B)	False


6	Troponin is a muscle protein whose chemical activity causes contraction of muscle fibers.
		A)	True
		B)	False


7	Acetylcholine causes the release of calcium from the sarcoplasmic reticulum.
		A)	True
		B)	False


8	Energy is normally not consumed during the relaxation process.
		A)	True
		B)	False


9	The enzyme acetylcholinesterase acts to increase the force of a muscle contraction.
		A)	True
		B)	False


10	Food poisoning from botulism can cause death from respiratory failure.
		A)	True
		B)	False


11	The inability to contract, or fatigue, is primarily caused by a lack of glucose and oxygen in muscle.
		A)	True
		B)	False


12	The liver can convert lactic acid to glucose.
		A)	True
		B)	False


13	Skeletal muscles continue to contract following death.
		A)	True
		B)	False


14	Red muscles are slow contracting and are typically found in the eyelids and hands.
		A)	True
		B)	False


15	Recruitment is the process in which there is an increase in the number of motor units activated.
		A)	True
		B)	False


16	The staircase effect refers to an increase in the strength of a muscle contraction that occurs during exercise.
		A)	True
		B)	False


17	Smooth muscles are not striated and as such do not have actin and myosin filaments.
		A)	True
		B)	False


18	Smooth muscle can be stimulated to contract by stretching.
		A)	True
		B)	False


19	Smooth muscle fibers usually can respond faster than skeletal.
		A)	True
		B)	False


20	Cardiac muscle is striated, found only in the heart, and does not rely on calcium as much as skeletal muscles do for contraction.
		A)	True
		B)	False


21	The heart only contains cardiac muscle.
		A)	True
		B)	False


22	The part of the muscle that moves is referred to as its insertion.
		A)	True
		B)	False


23	A muscle causing flexion is the antagonist to one that could cause extension at the same time.
		A)	True
		B)	False


24	The orbicularis muscles are sphincter muscles, which cause the eyes to squint and lips compress.
		A)	True
		B)	False


25	The temporalis is attached to the temporal bone and plays its greatest role in facial expression.
		A)	True
		B)	False


26	The triceps brachii is an antagonist of the brachioradialis.
		A)	True
		B)	False


27	The triceps has one head of origin on the humerus and two on the scapula.
		A)	True
		B)	False


28	The biceps brachii is located on the humerus but has no major attachments to the humerus.
		A)	True
		B)	False


29	In general, the flexors of the hand and fingers are located on the posterior surface of the forearm.
		A)	True
		B)	False


30	The abdominal muscles commonly insert on the linea alba.
		A)	True
		B)	False


31	There are skeletal muscles attached to the penis or clitoris.
		A)	True
		B)	False


32	When one is standing upright, the gluteus muscles are mainly in a state of relaxation.
		A)	True
		B)	False


33	Torticollis is a condition in which the neck muscles contract involuntarily.
		A)	True
		B)	False

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