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STRAIGHTERLINE ANATOMY FINAL/ STRAIGHTERLINE
ANATOMY& PHYSIOLOGY LATEST EXAM 2024 -2025
TEST BANK/ ACTUAL EXAM QUESTIONS AND
VERIFIED ANSWERS (100% CORRECT ANSWERS)
GRADED A+
Electrolytes are substances that
Select one:
- form covalent bonds with water.
- conduct electricity when dissolved in water.
- cannot conduct electricity in solution.
- are NOT found in the human body in any appreciable amounts.
- are NOT charged particles. - Correct Answer - b. conduct electricity when dissolved in
water.
A runner produced hypotonic sweat while running a marathon in hot weather. After the race, he drank large volumes of water. As a result of the water intake, his body cells will
Select one:
- shrink.
- swell.
- crenate.
- shrivel.
- not change. - Correct Answer - b. swell.
Which mature cells do not have a nucleus?
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- columnar cells of upper respiratory tract
- spermatozoa
- columnar cells of small intestines
- red blood cells
- macrophage (large, mobile white blood cell) - Correct Answer - d. red blood cells
The structural RNA of ribosomes is a
Select one:
- pre-mRNA.
- proenzyme.
- gene.
- ribosomal RNA (rRNA).
- codon. - Correct Answer - d. ribosomal RNA (rRNA).
A mRNA containing introns is a
Select one:
- pre-mRNA.
- proenzyme.
- gene.
- ribosomal RNA (rRNA).
- codon. - Correct Answer - a. pre-mRNA.
An isotonic contraction is described as
Select one:
- action potential frequency is high enough that no relaxation of muscle fibers occurs.
- a muscle produces constant tension during contraction.
- a muscle produces an increasing tension during contraction.
- a muscle produces increasing tension as it shortens. 2 / 4
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- a muscle produces tension, but the length of the muscle is increasing. - Correct
Answer - b. a muscle produces constant tension during contraction.
Which of the following is true?
Select one:
- Muscle fatigue has no influence on the force of contractions.
- A threshold stimulus will cause contraction of a muscle fiber.
- A subthreshold stimulus causes a muscle contraction.
- Motor units do not obey the "all or none" law.
- A threshold stimulus will not affect motor units. - Correct Answer - b. A threshold
stimulus will cause contraction of a muscle fiber.
The elevated oxygen consumption relative to activity level after exercise has ended is called
Select one:
- oxygen deficit.
- oxygen debt.
- oxygen repayment.
- recovery oxygen consumption.
- anaerobic recovery. - Correct Answer - d. recovery oxygen consumption.
When skeletal muscle is producing carbon dioxide and water while making ATP, which chemical processes could be active at this time?
Select one:
- anaerobic respiration
- aerobic respiration
- both anaerobic and aerobic respiration - Correct Answer - b. aerobic respiration
Which of the following is NOT an age related change in skeletal muscle?
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- loss of muscle strength
- loss of synapse surface area
- loss of fast-twitch fibers
- decreased recovery time
- decrease in motor units - Correct Answer - d. decreased recovery time
Muscle hypertrophy results from increased numbers of
Select one:
- myofibrils and sarcomeres.
- muscle fibers.
- motor units.
- muscles.
- muscle cells. - Correct Answer - a. myofibrils and sarcomeres.
Consider the following four phrases and select the one that does not belong with the others.
Select one:
- anaerobic metabolism
- lactic acid production
- fast twitch fibers
- fuels runner in a marathon
- muscle fibers split ATP rapidly - Correct Answer - d. fuels runner in a marathon
Which of the following is the longest muscle in the body?
Select one:
- quadriceps femoris
- sartorius
- biceps femoris
- tensor fasciae latae
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