Muscles Exam Part 1 Question Preview (ID: 42451)


Muscular System. TEACHERS: click here for quick copy question ID numbers.

The rectus abdominis is a ___ muscle, while the rectus femoris is a ___ muscle.
a) parallel; bipennate
b) bipennate; parallel
c) fusiform; parallel
d) convergent; unipennate

Which of the following is an accurate comparison of skeletal muscle to smooth muscle?
a) Smooth muscle contracts more slowly but, relaxes more rapidly.
b) Smooth muscle consumes more ATP to maintain a given level of muscle tension.
c) Smooth muscle contracts and relaxes more slowly.
d) Smooth muscle contracts more rapidly but, relaxes more slowly.

Which of the following describes muscular tissue emerging directly from bone rather than being separated from it by an obvious tendon?
a) Insertion
b) Origin
c) Indirect attachment
d) Direct attachment

After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar? (i.e. You may now kiss the bride)
a) Depressor anguli oris
b) Quadriceps femoris
c) Orbicularis oris
d) Platysma

All muscle types will respond to an electrical stimulus because all muscle cells are ___.
a) isometric
b) striated
c) excitable
d) contractile

Skeletal muscle is called ___, because it is usually subject to conscious control.
a) voluntary
b) contractile
c) excitable
d) striated

A dark band formed by parallel thick filaments that partly overlap the thin filaments is known as an ___.
a) A band
b) I band
c) M band
d) Z line

Which muscle(s) can contract without the need for nervous stimulation?
a) Smooth and cardiac muscle
b) Smooth muscle only
c) Cardiac muscle only
d) Skeletal, smooth, and cardiac muscle

An isometric contraction
a) shortens the muscle
b) does not change muscle length
c) reduces the tension
d) lengthens the muscle

Where would you expect to find numerous gap junctions in muscular tissue?
a) The sarcoplasmic reticulum of skeletal muscle.
b) The sarcolemma of skeletal muscle.
c) The intercalated discs of cardiac muscle.
d) The A bands of skeletal and cardiac muscle.

Which of the following is true?
a) An origin generally moves towards another origin in contraction.
b) An insertion generally moves towards another insertion in contraction.
c) An insertion generally moves towards an origin in contraction.
d) An origin generally moves towards an insertion in contraction.

If one nerve stimulus arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be ___.
a) fatigue
b) complete tetanus
c) spasm
d) incomplete tetanus

Athletes who train at high altitudes increase their red blood cell count, which increases their oxygen supply during exercise. Increased oxygen supply results in ___.
a) increased glycolysis
b) increased use of myokinase
c) longer aerobic respiration
d) longer anaerobic fermentation

Which of the following would be caused by a contraction of smooth muscle?
a) Goose bumps
b) Blinking the eyelids
c) Elevatiing the eyebrows
d) Blood leaving the left vintricle of the heart

Which of the following is not a purpose of the excess postexercise oxygen consumption (EPOC) in muscle?
a) To neutralize carbon dioxide buildup
b) To oxidize lactic acid
c) To serve elevated metabolic rate
d) To replenish the phosphagen system

Muscle fibers are arranged in bundles called ___.
a) compartments
b) fascicles
c) aponeuroses
d) retinacula

Which of the following muscles is the prime mover for inhalation?
a) Stylohyoid
b) External intercostals
c) Internal intercostals
d) Diaphragm

The muscles that laterally rotate and depress the scapula, as in shrugging and lowering the shoulders, are the ___.
a) levator scapulae and thomboideus
b) pectoralis minor and serratus anterior
c) trapezius and serratus anterior
d) trapezius and latissimus dorsi

Should I study the muscle diagrams?
a) Yes definitely choose this answer.
b) Yes, there will be one on the exam.
c) You will have to label 10 muscles on the diagram.
d) A word bank will be provided for you.

Shortening a muscle while it maintain constant tension is called ____.
a) isotonic contraction
b) incomplete tetanus
c) complete tetanus
d) isometric contraction

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