Choose the best answer.

1			What is the property of muscle that allows it to stretch?
			A)	excitability
			B)	conductivity
			C)	contractility
			D)	extensibility
			E)	elasticity
2			Which of these muscles is incorrectly matched in regards to the arrangement of its fascicles?
			A)	rectus abdominis: parallel
			B)	biceps brachii: fusiform
			C)	pectoralis major: convergent
			D)	orbicularis oculi: circular (sphincter)
			E)	deltoid: bipennate
3			What produces the striations of skeletal and cardiac muscle?
			A)	the transverse (T) tubules
			B)	the intercalated discs
			C)	the arrangement of the myosin and actin molecules
			D)	the sarcolemma
			E)	the triads
4			What is the depression on the sarcolemma at the neuromuscular junction called?
			A)	synaptic knob
			B)	synaptic vesicle
			C)	motor end plate
			D)	junctional folds
5			Which one of the following does NOT happen during muscle contraction?
			A)	The sarcomere shortens.
			B)	The A band shortens or disappears.
			C)	The I band shortens or disappears.
			D)	The H band shortens or disappears.
6			What is it called when a muscle decreases in size due to a lack of exercise?
			A)	denervation atrophy
			B)	disuse atrophy
			C)	senescence atrophy
			D)	hyperplasia
			E)	hypertrophy
7			Which one of the following is NOT a characteristic of cardiac muscle?
			A)	one or possibly two nuclei
			B)	rich in glycogen and myoglobin
			C)	large mitochondria filling about 25% of the cell
			D)	repair is primarily by fibrosis
			E)	the ANS is required for stimulation
8			Which of the following occurs with increasing age?
			A)	The lean body mass (muscle) increases with age.
			B)	Muscular strength decreases only slightly with age.
			C)	Fast glycolytic fibers show the earliest and most severe atrophy with age.
			D)	Muscular endurance increases with age.
9			Which is NOT a function of muscle?
			A)	Movement
			B)	Filtration
			C)	Heat production
			D)	Communication
10			Which is NOT a type of muscle?
			A)	Smooth
			B)	Cardiac
			C)	Striated
			D)	Skeletal
11			Which is NOT a property of muscle tissue?
			A)	Communication
			B)	Excitability
			C)	Extensibility
			D)	Contractility
12			Which is NOT a connective tissue layer in skeletal muscle?
			A)	Epimysium
			B)	Perimysium
			C)	Endomysium
			D)	Elastomysium
13			These muscle fascicles form rings around body openings, what are they called?
			A)	Deltoid
			B)	Circular
			C)	Unipennate
			D)	Convergent
14			The biceps brachii is an example of this muscle fascicle orientation. What is it called?
			A)	Parallel
			B)	Bipennate
			C)	Fusiform
			D)	Multipennate
15			The relatively stationary or proximal end of a muscle is called its __________________.
			A)	extention
			B)	insertion
			C)	flextion
			D)	origin
16			The attachment of a muscle to bone by the use of connective tissue of some length is called a/n _______________________.
			A)	tendon
			B)	aponeurosis
			C)	ligament
			D)	origin
17			Some muscles are connected to a broad sheet-like tendon called a/n ____________________.
			A)	tendon
			B)	aponeurosis
			C)	ligament
			D)	origin
18			The triceps brachii is the prime mover of the elbow called ________________.
			A)	insertion
			B)	flextion
			C)	adduction
			D)	extension
19			This muscle or muscle group opposes the prime mover. What is it called?
			A)	Resistor
			B)	Muscular advantage
			C)	Antagonist
			D)	Synergist
20			The fulcrum in the different lever systems of the body is made of the __________________________.
			A)	joints
			B)	muscles
			C)	tendons
			D)	ligaments
21			For many of the muscle cell components the prefix ______________ is used.
			A)	tropo-
			B)	sarco-
			C)	myo-
			D)	lemma-
22			The plasma membrane of a muscle cell is called the _________________.
			A)	titin
			B)	myofibril
			C)	sarcolemma
			D)	sarcoplasmic reticulum
23			Which is NOT a kind of myofilament?
			A)	Thick
			B)	Elastic
			C)	Thin
			D)	Glycogenic
24			Myosin and actin are called _________________ protein.
			A)	action
			B)	contractile
			C)	regulatory
			D)	elastic
25			Each segment of a myofibril from one Z disc to the next is called a __________________.
			A)	myotome
			B)	troponin
			C)	sarcomere
			D)	sarcoplasmic reticulum
26			The muscle fibers innervated by a single motor nerve cell is called a/n __________________.
			A)	motor unit
			B)	muscle spindle
			C)	sarcoplasmic reticulum
			D)	myometrium
27			For a muscle to be viable it must have a __________________.
			A)	tendon and myosin
			B)	blood supply and nerve supply
			C)	energy network and tubular network
			D)	relaxation phase and stretching phase
28			The attachment of a nerve to a muscle fiber is done at this point. What is it called?
			A)	Relaxation point
			B)	Neuromuscular junction
			C)	Contraction point
			D)	Synapse