STRAIGHTERLINE ANATOMY AND PHYSIOLOGY EXAM QUESTIONS
Straighterline Anatomy Final, Straighterline Anatomy & Physiology
AND ANSWERS (VERIFIED AND WELL DETAILED ANSWERS) LATES
Study online at https://quizlet.com/_hhbp9u
UPDATE 2025/2026
1. What is the smallest level of organization in cellular The cellular level includes the
the body that contains the body's genetic nucleus, an organelle that contains the
information? body's genetic information.
a. chemical
b. cellular
c. tissue
d. organism
2. Which is an example of a normally occurring d. stretching of the uterus near the end of
positive-feedback mechanism? pregnancy
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
3. Which of the following processes generates c. oxidative phosphorylation
the most ATP within a human cell?
Select one:
a. glycolysis
b. lactic acid fermentation
c. oxidative phosphorylation
d. citric acid cycle
4. During DNA replication, how does each d. One strand forms continuously, the
template strand eventually become two other forms in short segments spliced by
identical DNA molecules? DNA ligase. There is a leading strand and
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
Study online at https://quizlet.com/_hhbp9u
Select one: a lagging strand; they don't both form
a. The two strands form continuously, cat- continuously.
alyzed by DNA polymerase.
b. The two strands form continuously, cat-
alyzed by DNA ligase.
c. One strand forms continuously, the oth-
er forms in short segments spliced by DNA
polymerase.
d. One strand forms continuously, the oth-
er forms in short segments spliced by DNA
ligase.
5. Which is the most superficial layer of skin .
that is composed primarily of living cells? d. stratum spinosum (stratum basale layer
is below the stratum spinosum)
Select one:
a. stratum corneum
b. stratum lucidum
c. stratum basale spinosum.
d. stratum spinosum
6. Which of the following is the definition of a a burn that has destroyed the dermis and
third degree burn? epidermis. How much skin the burn cov-
ers does not definite which degree of
Select one: burn it is.
a. a burn that covers at least 25% of the skin
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
7. Which of the following types of openings a. cavity: a sinus is an air space within
in the skeletal system does a "sinus" de- bone.
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
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scribe?
Select one:
a. cavity
b. cleft
c. hole
d. tunnel
8. Which of the following components of the b. Collagen is a component of the bone
bone matrix, when removed, allows the matrix that gives it flexible strength so it is
bone to be easily shattered? less brittle.
Select one:
a. cartilage
b. collagen
c. hydroxyapatite
d. mineral
9. Which of the following is the most widely d. smooth
distributed type of muscle in the body?
Select one:
a. cardiac
b. postural
c. skeletal
d. smooth
10. Which sentence best describes the sliding c. Sarcomeres and myofibrils contract. The
filament model of muscle contraction? shortening of sarcomeres is responsible
for contraction, and thus myofibrils (sar-
Select one: comeres joined end to end) also shorten
a. Actin and myosin filaments remain sta-
tionary.
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
Study online at https://quizlet.com/_hhbp9u
b. Actin and myosin myofilaments shorten.
c. Sarcomeres and myofibrils contract.
d. Sarcomeres and myofibrils lengthen.
11. A doctor performing an autopsy on a pa- b. microglia
tient 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
12. What type of axons is found in a gray ramus d. unmyelinated, post-ganglionic axons
comunicans?
Select one:
a. myelinated, pre-ganglionic axons
b. myelinated, post-ganglionic axons
c. unmyelinated, pre-ganglionic axons
d. unmyelinated, post-ganglionic axons
13. Which class of chemical messengers is se- c. neurotransmitter Neurotransmitters are
creted by neurons into synaptic clefts to ac- secreted into a synaptic cleft by presynap-
tivate an adjacent cell? tic nerve terminals.
Select one:
a. autocrine
b. endocrine
c. neurotransmitter
d. paracrine
Straighterline Anatomy Final, Straighterline Anatomy & Physiology
AND ANSWERS (VERIFIED AND WELL DETAILED ANSWERS) LATES
Study online at https://quizlet.com/_hhbp9u
UPDATE 2025/2026
1. What is the smallest level of organization in cellular The cellular level includes the
the body that contains the body's genetic nucleus, an organelle that contains the
information? body's genetic information.
a. chemical
b. cellular
c. tissue
d. organism
2. Which is an example of a normally occurring d. stretching of the uterus near the end of
positive-feedback mechanism? pregnancy
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
3. Which of the following processes generates c. oxidative phosphorylation
the most ATP within a human cell?
Select one:
a. glycolysis
b. lactic acid fermentation
c. oxidative phosphorylation
d. citric acid cycle
4. During DNA replication, how does each d. One strand forms continuously, the
template strand eventually become two other forms in short segments spliced by
identical DNA molecules? DNA ligase. There is a leading strand and
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
Study online at https://quizlet.com/_hhbp9u
Select one: a lagging strand; they don't both form
a. The two strands form continuously, cat- continuously.
alyzed by DNA polymerase.
b. The two strands form continuously, cat-
alyzed by DNA ligase.
c. One strand forms continuously, the oth-
er forms in short segments spliced by DNA
polymerase.
d. One strand forms continuously, the oth-
er forms in short segments spliced by DNA
ligase.
5. Which is the most superficial layer of skin .
that is composed primarily of living cells? d. stratum spinosum (stratum basale layer
is below the stratum spinosum)
Select one:
a. stratum corneum
b. stratum lucidum
c. stratum basale spinosum.
d. stratum spinosum
6. Which of the following is the definition of a a burn that has destroyed the dermis and
third degree burn? epidermis. How much skin the burn cov-
ers does not definite which degree of
Select one: burn it is.
a. a burn that covers at least 25% of the skin
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
7. Which of the following types of openings a. cavity: a sinus is an air space within
in the skeletal system does a "sinus" de- bone.
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
Study online at https://quizlet.com/_hhbp9u
scribe?
Select one:
a. cavity
b. cleft
c. hole
d. tunnel
8. Which of the following components of the b. Collagen is a component of the bone
bone matrix, when removed, allows the matrix that gives it flexible strength so it is
bone to be easily shattered? less brittle.
Select one:
a. cartilage
b. collagen
c. hydroxyapatite
d. mineral
9. Which of the following is the most widely d. smooth
distributed type of muscle in the body?
Select one:
a. cardiac
b. postural
c. skeletal
d. smooth
10. Which sentence best describes the sliding c. Sarcomeres and myofibrils contract. The
filament model of muscle contraction? shortening of sarcomeres is responsible
for contraction, and thus myofibrils (sar-
Select one: comeres joined end to end) also shorten
a. Actin and myosin filaments remain sta-
tionary.
, Straighterline Anatomy Final, Straighterline Anatomy & Physiology
Study online at https://quizlet.com/_hhbp9u
b. Actin and myosin myofilaments shorten.
c. Sarcomeres and myofibrils contract.
d. Sarcomeres and myofibrils lengthen.
11. A doctor performing an autopsy on a pa- b. microglia
tient 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
12. What type of axons is found in a gray ramus d. unmyelinated, post-ganglionic axons
comunicans?
Select one:
a. myelinated, pre-ganglionic axons
b. myelinated, post-ganglionic axons
c. unmyelinated, pre-ganglionic axons
d. unmyelinated, post-ganglionic axons
13. Which class of chemical messengers is se- c. neurotransmitter Neurotransmitters are
creted by neurons into synaptic clefts to ac- secreted into a synaptic cleft by presynap-
tivate an adjacent cell? tic nerve terminals.
Select one:
a. autocrine
b. endocrine
c. neurotransmitter
d. paracrine
