Test
CH.9
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Preguntas del test (87)
1A large broad sheet of connective tissue, such as on the abdomen, is called a/an _____ .
- Aaponeurosis
- Bepimysium
- Cperimysium
- Dendomysium
2
The membrane that is the closest to the individual muscle fiber is the _____.- Aaponeurosis
- Bepimysium
- Cperimysium
- Dendomysium
3A group of skeletal muscle fibers is called a/an _____.
- Aperimysium
- Bfascicle
- Cepimysium
- Dtendon
4
The structure that connects muscles to bones is the _____.- Aaponeurosis
- Bfascicle
- Ctendon
- Dligament
5The main force of contraction occurs when actin forms a chemical complex with _____ .
- Atroponin
- Bmyosin
- Ctropomyosin
- Dacetylcholine
6When a muscle is at rest, which of the following is not associated chemically with the others?
- Aactin
- Bmyosin
- Ctroponin
- Dtropomyosin
7During the contraction of a sarcomere, calcium ions bind with the protein _____.
- Aactin
- Bmyosin
- Ctroponin
- Dtropomyosin
8The main neurotransmitter involved in skeletal muscle contraction is _____.
- Aadrenalin
- Bnoradrenalin
- Cacetylcholine
- Ddopamine
9Which molecule directly supplies energy to myosin to allow the filaments to contract?
- Aadenosine diphosphate
- BATP
- Ccreatone phosphate
- Dcreatinine
10The presence of _____ allow cardiac muscle fibers to transmit impulses faster among themselves.
- Acell membranes
- Bnerve fibers
- Cintercalated disks
- Dperistalsis
11
The muscle is called the _____ when it is causing the movement that is being described.- Aantagonist
- Bsynergist
- Cprime mover
- Dflexor
12Muscles that act together to cause the same movements are called _____.
- Asynergists
- Bantagonists
- Cprime movers
- Dagonists
13The sternocleidomastoid muscle was named because of its _____.
- Ashape
- Bsize
- Clocation
- Dpoints of attachment
14The _____ muscle forms a broad flat sheet on top of the head.
- Atemporalis
- Bbuccinator
- Cepicranius
- Dfrontalis
15Which muscle lines most of the inner cheek wall?
- Aorbicularis oris
- Bbuccinator
- Corbicularis oculi
- Dmasseter
16The _____ is a common intramuscular injection site, which flexes the shoulder or extends the arm.
- Apectorals major
- Bdeltoid
- Ctrapezius
- Dcoracobrachialis
17Which triangular thoracic muscle causes the arms to move towards the midline?
- Asubscapularis
- Bteres minor
- Cpectoralis major
- Dlatissimus dorsi
18A synergist with the biceps brachii is the _____.
- Atriceps brachii
- Bbrachialis
- Cdeltoid
- Dsupinator
19The pronator teres inserts on the _____.
- Ahumerus
- Bscapula
- Culna
- Dradius
20The fibers of a muscle that are connected to the overlying skin fibers are the _____ .
- Asubcutaneous fascia
- Bdeep fascia
- Csubserous fascia
- Dtendon
21The muscle cells within a group such as the biceps brachii are individually called _____ .
- Asarcolemmas
- Bfibers
- Cmyocyte
- Dmyofibrils
22The I bands in a sarcomere are made of _____ .
- Amyosin
- Bactin and myosin
- Ctropomyosin
- Dactin
23The _____ zone contains only myosin and is in the center of a sarcomere.
- AA
- BI
- CM
- DH
24The cisternae are enlarged portions of the _____ .
- Asarcoplasmic reticulum
- Bendoplasmic reticulum
- Ctransverse tubules
- DT-tubules
25The gap between the muscle and a nerve is the _____.
- Asynapse
- Bmotor end plate
- Cmyoneural junction
- Dmotor neuron
26The chemical that crosses a neuromuscular gap is _____.
- Asodium
- Ba protein
- Ca neurotransmitter
- Dcalcium
27The combination of a neuron and the muscle fiber it associates with is called a/an _____ .
- Afascicle
- Bmotor end plate
- Cmotor unit
- Dmyoneural junction
28The most abundant of the muscle proteins is _____ .
- Aactin
- Btroponin
- Cmyosin
- Dtropomyosin
29What is the most abundant storage form of energy within a muscle fiber?
- Aglycogen
- BADP
- CATP
- Dcreatine phosphate
30What effect does creatine phosphokinase have on muscle activity?
- Ait causes a fiber to relax
- Bit stimulates ATP synthesis
- Ccatalyzes the formation of creatine phosphate
- Dcauses the breakdown of creatine into creatinine
31How is excess sugar stored within muscle fibers?
- Ain ATP
- Bglycogen
- Cglucose
- Dcreatinine
32Which main factor allows muscle to sustain contraction even during times when the blood supply is low?
- Athe presence of hemoglobin
- Bglycogen storage
- Cmyoglobin
- Dcitric acid cycle
33The reddish brown color of muscle is due to the presence of _____ molecules.
- Acreatine phosphate
- Bhemoglobin
- Ciron
- Dmyoglobin
34Which molecule is produced during exercise, resulting in the oxygen debt?
- Aglycogen
- Blactate
- Cpyruvate
- DATP
35About _____% of ATP energy becomes liberated as heat from muscle metabolism.
- A25
- B50
- C75
- D10
36A single contraction of a muscle is called a ______.
- Athreshold
- Brecruitment
- Ctwitch
- Dmyogram
37The minimum stimulus needed to cause a contraction is called the _____.
- Aall-or-none law
- Bthreshold
- Csub-maximal stimulus
- Drecruitment level
38The period of time in which a muscle will not respond to a stimulus is called the _____.
- Alatent period
- Brefractory period
- Crelaxation period
- Dthreshold
39The complete contraction of a muscle, without the ability to relax, is called _____.
- Aa sustained contraction
- Bfatigue
- Ctetanic contraction
- Dtreppe
40The constant contraction of a percentage of fibers within a muscle is referred to as _____.
- Atetany
- Btonus
- Csustained contraction
- Dsummation
41Contractions called _____ occur whenever the forces applied to a muscle are increased, but the muscle does not appear to be moving.
- Aisotonic
- Bisometric
- Ctetanic
- Dsummation contractions
42Which of the following muscles always requires nerve impulses in order to contract?
- Amulti-unit smooth
- Bskeletal
- Cvisceral smooth
- Dcardiac
43Which type of muscle is found in the wall of blood vessels?
- Askeletal
- Bcardiac
- Csmooth visceral
- Dmulti-unit smooth
44Since smooth muscle fibers have rhythmicity and can stimulate each other, they contract in a pattern called _____.
- Aa functional syncytium
- Bperistalsis
- Ctetany
- Dtonus
45The degeneration of muscle fibers caused by a lack of proper stimulation and usage is called _____.
- Ahypertrophy
- Batrophy
- Cdystrophy
- Dperistalsis
46In smooth muscle, calcium ions combine with _____ to allow the actin and myosin cross-bridges to form.
- Acalmodulin
- Btroponin
- Cmyosin
- Dtropomyosin
47Which muscle causes smiling and is attached to the corners of the lips?
- Azygomatic
- Bbuccinator
- Ctemporalis
- Dorbicularis oris
48The _____ is the broad flat muscle on the neck, which causes frowning.
- Asternocleidomastoid
- Bplatysma
- Cbuccinator
- Dpterygoid
49A condition called temporomandibular syndrome can be caused by contraction of the _____.
- Abuccinator
- Bmasseter
- Cplatysma
- Dfrontalis
50The antagonist of the sternocleidomastoid is the _____.
- Asplenius capitis
- Bdigastric
- Ctrapezius
- Dsemispinalis capitis
51The triangular shaped muscle on the back that rotates the shoulder is the _____
- Atrapezius
- Brhomboid
- Cdeltoid
- Dlevator scapulae
52The _____ muscle acts to elevate the shoulders.
- Arhomboideus
- Blevator scapulae
- Cpectoralis major
- Ddeltoid
53Adduction of the scapulae in a posterior view is mainly accomplished by the _____.
- Atrapezius
- Brhomboideus
- Cserratus anterior
- Dpectoralis minor
54The _____ will move the shoulders on a forward plane.
- Apectoralis major
- Bpectoralis minor
- Cdeltoid
- Dserratus anterior
55An antagonist of the teres major is the _____.
- Apectoralis major
- Bsupraspinatus
- Cinfraspinatus
- Dsubscapularis
56The _____ is a common intramuscular injection site, which flexes the shoulder or extends the arm.
- Apectoralis major
- Bdeltoid
- Ctrapezius
- Dcoracobrachialis
57The _____ is a common intramuscular injection site, which flexes the shoulder or extends the arm.
- Apectoralis major
- Bdeltoid
- Ctrapezius
- Dcoracobrachialis
58Which triangular thoracic muscle causes the arms to move towards the midline?
- Asubscapularis
- Bteres minor
- Cpectoralis major
- Dlatissimus dorsi
59A synergist with the biceps brachii is the _____.
- Atriceps brachii
- Bbrachialis
- Cdeltoid
- Dsupinator
60The pronator teres inserts on the _____.
- Aradius
- Bulna
- Chumerus
- Dscapula
61The psoas major is the antagonist to the _____.
- Apsoas minor
- Bgluteus maximus
- Ciliacus
- Dpectineus
62The _____ muscle attaches to a long band of tendon which runs down the lateral aspect of the leg.
- Ailiacus
- Btensor fasciae latae
- Cadductor longus
- Dgracilis
63The _____ muscle causes one to cross the leg by adducting the thigh and flexing the lower leg.
- Ailiopsoas
- Bsartorius
- Cgracilis
- Dadductor magnus
64Which muscle runs from the anterior superior iliac spine to the medial tibial surface near the patella?
- Avastus medialis
- Bvastus lateralis
- Csemitendinosus
- Dsartorius
65The following cause dorsiflexion of the foot except which one?
- Aextensor digitorum longus
- Bsoleus
- Ctibialis anterior
- Dperoneus tertius
66Which of the following is attached to the calcaneus?
- Agastrocnemius
- Btibialis posterior
- Cperoneus longus
- Dperoneus tertius
67The _____ is inserted on the base of the first metatarsal.
- Asoleus
- Btibialis anterior
- Ctibialis posterior
- Dextensor digitorum longus
68Spontaneous contraction of random groups of muscles is called _____.
- Asyncytium
- Bperistalsis
- Cfibrillation
- Dcontracture
69A disease which results in muscle weakness because of abnormal neuromuscular junction activity is _____.
- Apoliomyelitis
- Bmyasthenia gravis
- Cmultiple sclerosis
- Dmuscular dystrophy
70Which of the following refers to a prolonged muscular spasm?
- Amyotonia
- Bparesis
- Cmyalgia
- Dcontracture
71The layer of connective tissue that separates the muscle tissue into small sections is called the ______________.
- Aaponeuroses
- Bepimysium
- Cperimysium
- Dendomysium
72The segment of a myofibril that is called a sarcomere runs from _______________.
- Aone Z line to the next Z line
- Bone H zone to the next H zone
- Cone A band to the next A band
- Done end of a skeletal muscle to the opposite end
73The ______________ are an invagination of the muscle cell's sarcolemma.
- Asarcoplasmic reticula
- Btransverse (T) tubules
- Ccisternae
- Dmicrotubules
74Into what does the neuron release its neurotransmitter at the neuromuscular junction?
- Amotor end plate
- Bcytoplasm of the muscle cell
- Ccisternae
- Dsynaptic cleft
75A motor unit is made up of _______________.
- Aall the muscle fibers within a given muscle
- Ba motor neuron and the muscle fibers it innervates
- Call the neurons going into an individual section of the body
- Da fascicle and a nerve
76The crossbridges involved in muscle contraction are located on the ________________.
- Amyosin myofilaments
- Bactin myofilaments
- Ctropomyosin
- Ddystrophin
77Which of these statements is correct regarding skeletal muscle contraction?
- AAll motor units act together.
- BMuscle contraction continues for long periods after nervous stimulation ceases.
- CThe crossbridges bind to the actin and shorten the sarcomeres.
- DDystrophin is not needed to strengthen the contracting muscle cell.
78The type of muscle found in the irises of the eyes and in the blood vessels is called _______________.
- Avisceral smooth muscle
- Bmultiunit smooth muscle
- Ccardiac muscle
- Dskeletal muscle
79Why can cardiac muscle fibers contract for longer periods than skeletal muscle fibers?
- ACardiac muscle is self-excitatory.
- BExtracellular calcium partially controls the strength (and length) of contraction.
- CCisternae of T-tubules is more developed in cardiac muscle.
- DCardiac muscle is uninucleate rather than multinucleate.
80Which muscle enables you to pucker your lips for a kiss?
- Aepicranius
- Bbuccinator
- Corbicularis oris
- Dorbicularis oculi
81The muscle that enables you to elevate and adduct your scapula is the ____________.
- Aserratus anterior
- Bsternocleidomastoid
- Csplenius capitis
- Drhomboideus major
82Which muscle is the strongest flexor of the elbow?
- Abrachialis
- Bbiceps brachii
- Cbrachioradialis
- Ddeltoid
83The biceps femoris is one hamstring muscle located on the back of the thigh. Which muscle is another hamstring?
- Aadductor magnus
- Bsemitendinosus
- Cgluteus maximus
- Dquadriceps femoris
84Muscles that are NOT used, may degenerate or undergo a process of _____.
- Aatrophy
- Bhypertrophy
- Cfatigue
- Dtetany
85Muscles that act to cause similar movements are called _____.
- Aantagonists
- Borigins
- Cinsertions
- Dsynergists
86The triangle shaped muscle which antagonizes the sternocleidomastoid is the _____.
- Adeltoid
- Bpectoralis major
- Cexternal oblique
- Dtrapezius
87The antagonist to the triceps brachii is the _____.
- Adeltoid
- Bpectoralis major
- Cbrachialis
- Dserratus anterior
Información
- Descripción
- Muscles
- Autor
- Ashley Garrett
- Idioma
- English
- Visitas
- 83
- Etiquetas
- Valoración
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