PNB 2264 EXAM 1 Questions with Correct
Answers
posterior: term of position back of body
lateral: term of position outside of appendages
medial: term of position inside of appendages
distal: term of position located further down on appendage
proximal: term of position located at the top of the appendages
transverse section horizontal cut: top and bottom
sagittal section divides the body (or organ) into left and right parts in unequal parts
,coronal section Divides the body into dorsal and ventral (back and front, or posterior and
anterior) portions; also referred to as frontal portion
midsaggital section plane that cuts the body into equal Left & Right halves
humans have _________ symmetry bodies bilateral
what is homeostasis ability to maintain relatively constant conditions
humans need to maintain relatively constant internal conditions despite living in a variety of
environments: why are we allowed to survive in different environments because of
homeostasis
can homeostasis vary in its internal conditions? it can vary within a narrow range: can
fluctuate minimally
what is negative feedback a response to a change in the body that counteracts or opposes
the initial change: helps restore homeostasis
,in a negative feedback loop, the response negates the stimulus
initial stimulus --> response ---> stimulus
homeostasis loop receptor -> controller -> effector
what is positive feedback feedback that increases the output of a process: disrupts
homeostasis and amplifies
positive feedback loop initial stimulus --> response --> + feedback (outside factors turn
off response) <------ stimulus
is positive or negative feedback more common in body positive feedback is less common
in body: it takes the body out of homeostasis
what is a feed-forward response the body initiates a response that has neither a negative
nor a positive impact on the stimulus: providing future-oriented options or solutions
, open system a system in which matter can enter from or escape to the surroundings: no
relationship between stimulus and response
compartmentalization is essential for.... homeostasis: body cavities and organs have
unique set points (keep different parts of the body chemically or physically separate)
intracellular fluid: compartmentalization of body fluid intra: inside cell (cytosol)
extracellular fluid: compartmentalization of body fluid extra: outside of cell (interstitial
fluid, plasma, and other fluid)
what is in the extracellular fluid interstitial fluid, plasma, and other fluid
what is in the intracellular fluid cytosol
Tumor biopsies are often sent to a laboratory, which compares groupings of cancer cells to
groupings of non-cancerous cells. This is an example of which anatomical subdiscipline?
histology: study of tissues
Answers
posterior: term of position back of body
lateral: term of position outside of appendages
medial: term of position inside of appendages
distal: term of position located further down on appendage
proximal: term of position located at the top of the appendages
transverse section horizontal cut: top and bottom
sagittal section divides the body (or organ) into left and right parts in unequal parts
,coronal section Divides the body into dorsal and ventral (back and front, or posterior and
anterior) portions; also referred to as frontal portion
midsaggital section plane that cuts the body into equal Left & Right halves
humans have _________ symmetry bodies bilateral
what is homeostasis ability to maintain relatively constant conditions
humans need to maintain relatively constant internal conditions despite living in a variety of
environments: why are we allowed to survive in different environments because of
homeostasis
can homeostasis vary in its internal conditions? it can vary within a narrow range: can
fluctuate minimally
what is negative feedback a response to a change in the body that counteracts or opposes
the initial change: helps restore homeostasis
,in a negative feedback loop, the response negates the stimulus
initial stimulus --> response ---> stimulus
homeostasis loop receptor -> controller -> effector
what is positive feedback feedback that increases the output of a process: disrupts
homeostasis and amplifies
positive feedback loop initial stimulus --> response --> + feedback (outside factors turn
off response) <------ stimulus
is positive or negative feedback more common in body positive feedback is less common
in body: it takes the body out of homeostasis
what is a feed-forward response the body initiates a response that has neither a negative
nor a positive impact on the stimulus: providing future-oriented options or solutions
, open system a system in which matter can enter from or escape to the surroundings: no
relationship between stimulus and response
compartmentalization is essential for.... homeostasis: body cavities and organs have
unique set points (keep different parts of the body chemically or physically separate)
intracellular fluid: compartmentalization of body fluid intra: inside cell (cytosol)
extracellular fluid: compartmentalization of body fluid extra: outside of cell (interstitial
fluid, plasma, and other fluid)
what is in the extracellular fluid interstitial fluid, plasma, and other fluid
what is in the intracellular fluid cytosol
Tumor biopsies are often sent to a laboratory, which compares groupings of cancer cells to
groupings of non-cancerous cells. This is an example of which anatomical subdiscipline?
histology: study of tissues
