Straighterline Anatomy Final,
Straighterline Anatomy & Physiology
What is the smallest level of organization in the body that contains the body's
genetic information?
a. chemical
b. cellular
c. tissue
d. organism - correct answer cellular The cellular level includes the nucleus, an
organelle that contains the body's genetic information.
Which is an example of a normally occurring positive-feedback mechanism?
Select one:
a. elevated blood pressure during exercise
b. increase in heart rate after blood loss
c. decrease in blood pressure after blood loss
d. stretching of the uterus near the end of pregnancy - correct answer d.
stretching of the uterus near the end of pregnancy
Which of the following processes generates the most ATP within a human cell?
Select one:
a. glycolysis
b. lactic acid fermentation
c. oxidative phosphorylation
d. citric acid cycle - correct answer c. oxidative phosphorylation
,Straighterline Anatomy Final,
Straighterline Anatomy & Physiology
During DNA replication, how does each template strand eventually become two
identical DNA molecules?
Select one:
a. The two strands form continuously, catalyzed by DNA polymerase.
b. The two strands form continuously, catalyzed by DNA ligase.
c. One strand forms continuously, the other forms in short segments spliced by
DNA polymerase.
d. One strand forms continuously, the other forms in short segments spliced by
DNA ligase. - correct answer d. One strand forms continuously, the other forms
in short segments spliced by DNA ligase. There is a leading strand and a lagging
strand; they don't both form continuously.
Which is the most superficial layer of skin that is composed primarily of living
cells?
Select one:
a. stratum corneum
b. stratum lucidum
c. stratum basale spinosum.
d. stratum spinosum - correct answer .
d. stratum spinosum (stratum basale layer is below the stratum spinosum)
Which of the following is the definition of a third degree burn?
Select one:
a. a burn that covers at least 25% of the skin
,Straighterline Anatomy Final,
Straighterline Anatomy & Physiology
b. a burn that has destroyed the dermis and epidermis
c. a burn that can only be caused by fire
d. a burn that does not leave scars - correct answer a burn that has destroyed the
dermis and epidermis. How much skin the burn covers does not definite which
degree of burn it is.
Which of the following types of openings in the skeletal system does a "sinus"
describe?
Select one:
a. cavity
b. cleft
c. hole
d. tunnel - correct answer a. cavity: a sinus is an air space within bone.
Which of the following components of the bone matrix, when removed, allows
the bone to be easily shattered?
Select one:
a. cartilage
b. collagen
c. hydroxyapatite
d. mineral - correct answer b. Collagen is a component of the bone matrix that
gives it flexible strength so it is less brittle.
Which of the following is the most widely distributed type of muscle in the body?
Select one:
, Straighterline Anatomy Final,
Straighterline Anatomy & Physiology
a. cardiac
b. postural
c. skeletal
d. smooth - correct answer d. smooth
Which sentence best describes the sliding filament model of muscle contraction?
Select one:
a. Actin and myosin filaments remain stationary.
b. Actin and myosin myofilaments shorten.
c. Sarcomeres and myofibrils contract.
d. Sarcomeres and myofibrils lengthen. - correct answer c. Sarcomeres and
myofibrils contract. The shortening of sarcomeres is responsible for contraction,
and thus myofibrils (sarcomeres joined end to end) also shorten
A doctor performing an autopsy on a patient concludes that part of the brain was
likely damaged by trauma due to a large population of which type of cell?
Select one:
a. Schwann cells
b. microglia
c. oligodendrocytes
d. ependymal cells - correct answer b. microglia
What type of axons is found in a gray ramus comunicans?
Select one:
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