Download Quiz #3

PALOMAR COLLEGE
Life Sciences Department
Introduction to Anatomy & Physiology (Zoo145); Instructor: Elmar Schmid, Ph.D.
QUIZ #3
- Muscular System 
Answer the following questions and mark it on a Scantron 882 answer sheet. All questions
must be answered by the student without help by class mates, friends or other human
beings. Please read the following statement below carefully and sign it if you satisfy the
guidelines outlined in this statement. This signed take home exercise sheet must be turned
in with your answer sheet to receive full credit for this assignment. This assignment is due at
the first class meeting the following week.

I HAVE ANSWERED THE QUESTIONS IN THIS EXERCISE ON MY OWN. I DID NOT CONSULT OTHERS OR
IN ANY CONDUCT IN ANY ACTIVITITES THAT COULD BE CONSTRUED AS CHEATING IN THIS
ASSIGNMENT. I DID NOT MAKE ANY COPIES OF THIS ASSIGNMENT.
_________________________________
(PRINT YOUR NAME)
________________________________
(YOUR SIGNATURE)
Q. 1: Which of the following is NOT a function of muscle tissue?
A) Heat production
B) Regulation of organ volume, e.g. lungs
C) Vitamin D production
D) Body movements
E) Body position
Q. 2: Cardiac muscle is a branched muscle tissue and only found in the heart.
A) true
B) false
Q. 3: The type of muscle tissue which is located in the walls of the uterus and the bladder is called
A) striated skeletal muscle
B) striated cardiac muscle
C) non-striated cardiac muscle
D) smooth muscle
E) flight muscle
Q. 4: There are four types of muscle tissue in the human body which are skeletal, cardiac, flight and
smooth muscle.
A) true
B) false
Q. 5: The connective tissue sheath which surrounds bundles of 10 – 100 muscle fibers is called:
A) periosteum
B) epimysium
C) perimysium
D) fasicle
E) sarcolemma
Q. 6: The liquid interior of a muscle cell is called:
A) sarcoplasm
B) sarcolemma
C) sarcoma
D) myofibril
E) endomysium
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PALOMAR COLLEGE
Life Sciences Department
Introduction to Anatomy & Physiology (Zoo145); Instructor: Elmar Schmid, Ph.D.
Q. 7: The reddish-colored pigment located in high concentration in the sarcoplasm of a muscle fiber
and which is important for oxygen storage is called:
A) hemoglobin
B) immunoglobin
C) keratin
D) myoglobin
E) myosin
Q. 8: The protein which makes up the thick filament of the sarcomere is called:
A) myoglobin
B) myosin
C) actin
D) keratin
E) troponin
Q. 9: Which of the following proteins is NOT a component of the thin filament of a typical muscle
sarcomere?
A) actin
B) keratin
C) tropomyosin
D) myosin
E) both, b and d
Q. 10: During muscle contraction the ____ filaments slide past the ____ filaments, as a consequence
of the conformational movement of the heads of the ________ protein.
A) thick … thin … myosin
B) thick … thin … troponin
C) thin … thick … myosin
D) thin … thick … troponin
E) Z disc … thick … troponin
Q. 11: The cell type which is in contact with a unit of muscle fibers and triggers the processes
leading to muscle contraction is called:
A) motor neuron
B) Merkel cell
C) glial cell
D) Schwann cell
E) no nerves are connected to skeletal muscle cells
Q. 12: The neurotransmitter released at the neuromuscular junction is
A) adrenaline
B) acetylcholine
C) glutamine
D) GABA
E) serotonin
Q. 13: After activation of the Ach receptor at the motor end plate of the muscle, a muscle action
potential is triggered due to the influx of ________ ions into the muscle fiber.
A) sodium
B) potassium
C) calcium
D) chlorine
E) adrenaline
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PALOMAR COLLEGE
Life Sciences Department
Introduction to Anatomy & Physiology (Zoo145); Instructor: Elmar Schmid, Ph.D.
Q. 14: The bacteria-derived botulinum toxin which is widely used in the currently very fashionable
anti-wrinkle Botox therapy prevents which of the following events at the neuromuscular junction
(NMJ)?
A) the synthesis of acetylcholine
B) the release of acetylcholine from the motor neuron
C) the degradation of acetylcholine in the synaptic cleft
D) the generation of muscle action potentials in the motoric endplate
E) the influx of calcium into the muscle cells
Q. 15: Which of the following substances is/are absolutely necessary for sustained muscle
contraction?
A) calcium
B) ATP
C) acetylcholine
D) sodium
E) all of the above
Q. 16: The type of muscle contraction where there is no change in the length of the muscle but
strong build-up of tension is referred to as:
A) isometric contraction
B) isotonic contraction
C) metabolic contraction
Q. 17: Regarding shape a triangular shaped muscle is called:
A) Quadratus
B) Gracilis
C) Deltoid
D) Trapezoid
E) Orbicularis
Q. 18: Which of the following muscles are you using while biting this piece of carrot stick?
A) masseter
B) orbicularis oris
C) buccinators
D) lateral pterygoid
E) depressor labii
Q. 19: You are sipping a soft drink with the help of a straw. Which of the following facial muscles
are you most intensively using?
A) Zygomaticus major
B) Buccinator
C) Orbicularis oculi
D) Occipitofrontalis
E) Orbicularis oris
Look at the Image below and then answer the following questions.
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PALOMAR COLLEGE
Life Sciences Department
Introduction to Anatomy & Physiology (Zoo145); Instructor: Elmar Schmid, Ph.D.
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2
3
4
14
5
6
8
7
9
10
11
12
13
Anterior
superficial
Anterior
deep
Q. 20: Shown in the Image above, which facial muscles elevate(s) the mandible and (upon
contraction) enable(s) you to close your mouth?
A) only muscle 3
B) muscles 3 and 9
C) muscles 3, 8 and 9
D) muscles 3, 8, 9 and 13
E) none of the above
Q. 21: Detail 7 in the Image above depicts which of the following muscles?
A) temporalis
B) sternocleidomastoid
C) platysma
D) zygomaticus major
E) massetter
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PALOMAR COLLEGE
Life Sciences Department
Introduction to Anatomy & Physiology (Zoo145); Instructor: Elmar Schmid, Ph.D.
Q. 22: Relaxation of the diaphragm causes this human muscle to _______ and to enforce
___________ by the lungs.
A) flatten … exhalation
B) flatten … inhalation
C) elongate upwards … exhalation
D) elongate upwards … inhalation
E) elongate laterally … a tetanus
Q. 23: Which of the following is NOT a muscle involved in the active movement of the pectoral
(shoulder) girdle?
A) Pectoralis minor
B) Serratus anterior
C) Levator scapulae
D) Rhomboid major
E) Pectoralis major
Q. 24: The deltoid has its insertion on which of the following bones?
A) radius
B) ischium
C) humerus
D) ulna
E) tibia
Q. 25: Which of the following muscles does NOT flex the hand at the wrist joint?
A) Brachioradialis
B) Palmaris longus
C) Flexor digitorum profundus
D) Extensor digitorum
E) both, a and d
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