Straight line Anatomy Final, Straighterline Anatomy & Physiology -
Questions with Correct Answers/ Verified/ Latest Update
(2024/2025)
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 - ✔✔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 - ✔✔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:
a. cardiac
b. postural
c. skeletal
d. smooth - ✔✔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. - ✔✔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 - ✔✔b. microglia
What type of axons is found in a gray ramus comunicans?
Select one:
a. myelinated, pre-ganglionic axons
b. myelinated, post-ganglionic axons
c. unmyelinated, pre-ganglionic axons
d. unmyelinated, post-ganglionic axons - ✔✔d. unmyelinated, post-ganglionic axons
Which class of chemical messengers is secreted by neurons into synaptic clefts to activate
an adjacent cell?
Select one:
,a. autocrine
b. endocrine
c. neurotransmitter
d. paracrine - ✔✔c. neurotransmitter Neurotransmitters are secreted into a synaptic cleft by
presynaptic nerve terminals.
The targeted response of the hormone lipotropin is an increase in which of the following?
Select one:
a. the breakdown of fat in adipose tissues
b. the breakdown of lipids and release of fatty acids from cells This is caused by release of
growth hormone.
c. the production of milk in lactating women
d. the secretion of thyroid hormone - ✔✔a. the breakdown of fat in adipose tissues
What causes the breakdown of lipids and release of fatty acids from cells? - ✔✔The release
of growth hormones.
There are more microbial cells than human cells in your body and the health of this
microbiota clearly influences human well-being. How many microbes are there?.
Select one:
a. For every cell in your body, there are ten microbial cells.
b. For every cell in your body, there are one hundred microbial cells.
c. For every cell in your body, there are one thousand microbial cells.
d. For every cell in your body, there are ten thousand microbial cells - ✔✔a. For every cell in
your body, there are ten microbial cells.
The study of the body's organization by areas is
Select one:
, a. systemic anatomy.
b. regional anatomy.
c. molecular biology.
d. microbiology.
e. surface anatomy. - ✔✔b. regional anatomy.
The popliteal region is the
Select one:
a. calf.
b. armpit.
c. hollow behind the knee.
d. neck.
e. thigh. - ✔✔c. hollow behind the knee.
Deep means
Select one:
a. toward the middle or midline of the body.
b. away from the surface.
c. closer to the head.
d. closer than another structure to the point of attachment to the trunk.
e. toward the back of the body. - ✔✔b. away from the surface.
The gluteal region is commonly known as the
Select one:
a. groin.
b. buttock.
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