1) The different types of muscle tissue differ from each other by

Transcription

1 Chapters 10, 11 Practice Exam 1) The different types of muscle tissue differ from each other by a) microscopic anatomy. b) location. c) type of Control. d) both microscopic anatomy and location. e) All of these choices are correct. 2) Which of the following is NOT a major function of muscle tissue? a) moving blood throughout the body b) generating heat through contractions c) stabilizing the movement of joints d) promoting movement of body structures e) Production of Vitamins. 3) This is the property of muscle that gives it the ability to stretch without damage. a) electrical excitability b) contractility c) extensibility d) elasticity e) thermogenesis 4) This is the outermost layer of connective tissue surrounding a skeletal muscle. a) tendon b) ligament c) endomysium d) epimysium e) perimysium 5) How many arteries and veins usually accompany a single nerve penetrating a skeletal muscle? a) one artery and one or two veins 1

2 b) two arteries and two veins c) three arteries and two veins d) one artery and three veins e) one artery and a varied amount of veins 6) In neuromuscular junctions, synaptic vesicles containing acetylcholine are found suspended in the cytosol of a) myelin bulbs. b) neuromuscular bulbs. c) synaptic end bulbs. d) axon collateral bulbs. e) tubule bulbs. 7) After the fusion of myoblasts, the muscle fiber loses its ability to do what? a) grow b) lengthen c) contract d) go through cell division. e) all of the answer choices 8) Which of the following correctly lists the sequence of structures that action potentials must move through to excite skeletal muscle contraction? a) sarcolemma, axon of neuron, T tubules b) T tubules, sarcolemma, myofilament c) muscle fiber, axon of neuron, myofibrils d) axon of neuron, sarcolemma, T tubules e) myofibrils, myofilaments, mitochondria 9) The contractile organelles of a skeletal muscle fiber are thread-like structures called a) myofibrils. b) myoglobin. c) mitochondria. d) Z discs. e) M lines. 10) The sarcoplasmic reticulum in skeletal muscle fibers is used for storing a) oxygen. b) ATP. c) PO43-. 2

3 d) Na+. e) Ca2+. 11) Which of the following regions of the sarcomere contain just thick filaments? a) zone of overlap b) A band c) H zone d) both A band and H zone e) All of these answer choices are correct. 12) What regulatory proteins can be found in the thin filaments of skeletal muscle fibers? a) troponin and titin b) tropomyosin and troponin c) myosin and titin d) titin and tropomyosin e) tropomyosin and myosin 13) Which of the following proteins is used to reinforce the sarcolemma and to help transmit the tension generated by the sarcomeres to the tendons? a) troponin b) tropomyosin c) myosin d) actin e) dystrophin 14) During muscle contraction by the sliding filament mechanism, thin filaments are pulled towards the a) Z disc. b) H zone. c) M line. d) A band. e) I band. 15) What energizes the myosin head? a) the actin filaments b) calcium ions c) potassium ions d) ATP hydrolysis reaction e) ADP synthesis 3

4 16) This consists of a somatic motor neuron and all the skeletal muscle fibers it stimulates. a) sarcomere b) motor unit c) neuromuscular junction d) muscle unit e) multi-unit smooth muscle 17) Which of the following are commonly used to produce ATP during skeletal muscle contraction? a) creatine phosphate b) anaerobic cellular respiration c) aerobic cellular respiration d) All of these choices are correct. 18) This is also referred to as the period of lost excitability in skeletal muscle fibers. a) refractory period b) contraction period c) latent period d) relaxation period e) wave summation 19) A period of sustained skeletal muscle contraction in which individual twitches cannot be detected is called a) unfused tetanus. b) muscle atrophy. c) flaccidity. d) fused tetanus. e) wave summation. 20) Which of the following types of muscle tissue contract when excited by their own autorhythmic muscle fibers? a) cardiac muscle b) slow twitch oxidative skeletal muscle c) fast twitch glycolytic skeletal muscle d) All of these choices are correct. 21) Which of the following is NOT a common side effect of creatine supplementation? 4

5 a) decrease in the body s own synthesis of creatine b) kidney dysfunction c) dehydration d) all of these choices e) rigor mortis 22) Which term or condition in characterized by a loss of muscle tone? a) spasticity b) flaccid paralysis c) spastic paralysis d) rigidity e) hypertonia 23) Which is a NOT a side-effect of anabolic steroid use by female athletes? a) sterility b) baldness c) facial hair growth d) menstrual irregularities e) deepening of the voice 24) Leg muscles are predominantly composed of which type of muscle fiber? a) slow oxidative b) fast glycolytic c) fast oxidative-glycolytic d) slow glycolytic e) fast oxidative 25) The attachment of a muscle s tendon to the stationary bone is called the ; the attachment of the muscle s other tendon to the movable bone is called the. a) origin, action b) insertion, action c) origin, insertion d) insertion, origin e) insertion, action 26) Motion will occur in a muscle when the supplied exceeds the. a) effort, load b) resistance, lever c) load, effort d) load, resistance e) lever, effort 5

6 27) The muscle that serves as the prime mover during a movement is called the a) antagonist. b) agonist. c) synergist. d) asynergist. e) fixator. 28) This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently. a) synergist b) agonist c) antagonist d) fixator e) secondary mover 29) If one is stabbed on the lateral side of the abdomen, what abdominal muscles, in order from superior to deep, will the knife go through? a) rectus abdominis, external oblique, internal oblique b) external oblique, internal oblique, transversus abdominis c) transversus abdominis, rectus abdominis, external oblique d) external oblique, transversus abdominis, rectus abdominis e) internal oblique, transversus abdominis, external oblique 30) Protrusion of an organ through a structure that normally contains it is referred to as a a) hernia. b) goiter. c) strain. d) sprain. e) hydrocele. 31) A muscle that decreases the size of an opening is a a) rotator. b) tensor. c) pronator. d) sphincter. e) depressor. 32) Which of the following is a muscle that moves the mandible? a) orbicularis oculi 6

7 b) masseter c) orbicularis oris d) epicranius e) frontalis 33) All of the following are muscles that move the eyeball EXCEPT a) superior rectus. b) lateral rectus. c) inferior oblique. d) internal oblique. e) superior oblique. 34) Which of the following is a muscle whose insertion is found on the clavicle and acromion process of the scapula within the pectoral girdle? a) trapezius b) pectoralis major c) latissimus dorsi d) gracilus e) sartorius 35) Which of the following muscles is used to flex and abduct the hand at the wrist joint? a) flexor digitorum profundus b) flexor digitorum superficialis c) flexor carpi radialis d) flexor carpi ulnaris e) palmaris longus 36) The attachment of a muscle s tendon to the stationary bone is called the ; the attachment of the muscle s other tendon to the movable bone is called the. a) origin, action b) insertion, action c) origin, insertion d) insertion, origin 37) Motion will occur in a muscle when the supplied exceeds the. a) effort, load b) resistance, lever 7

8 c) load, effort d) load, resistance 38) The muscle that serves as the prime mover during a movement is called the a) antagonist. b) agonist. c) synergist. d) asynergist. 39) If one is stabbed on the lateral side of the abdomen, what abdominal muscles, in order from superior to deep, will the knife go through? a) rectus abdominis, external oblique, internal oblique b) external oblique, internal oblique, transversus abdominis c) transversus abdominis, rectus abdominis, external oblique d) external oblique, transversus abdominis, rectus abdominis 40) A muscle that decreases the size of an opening is a a) rotator. b) tensor. c) pronator. d) sphincter. 41) Which of the following is a muscle that moves the mandible? a) orbicularis oculi b) masseter c) orbicularis oris d) epicranius 42) Which of the following is a muscle whose insertion is found on the clavicle and acromion process of the scapula within the pectoral girdle? a) trapezius 8

9 b) pectoralis major c) latissimus dorsi d) gracilus e) sartorius 43) What is the insertion of the triceps brachii muscle? a) ulnar tuberosity and coronoid process of ulna b) radial tuberosity of radius and bicipital aponeurosis c) olecranon of ulna d) lateral border of distal end of humerus 44)What is the origin of the rectus abdominis muscle? a) iliac crest and linea alba b) xiphoid process c) ribs 5-12 d) central tendon e) pubic bone 45) What is the action of the biceps brachii muscle? a) extends the forearm at the elbow joint b) flexes the forearm at the elbow joint c) pronates the forearm at the radioulnar joints d) abduct arm at shoulder joint 9