PHYSIO 3200 Exam 1 - Section 1 Questions
With Complete Answers
What is physiology? - ANSWER Study of biological function; how the body works
What is the hierarchical structure of the body systems? - ANSWER cells -> tissues ->
organs -> organ systems -> organism (body)
What are the four broad types of cells? - ANSWER 1. muscle
2. nerve
3. epithelial
4. connective tissue
What do muscle cells do? - ANSWER generate mechanical force and movement
What are the three types of muscle cells? - ANSWER skeletal, cardiac, and smooth
What do nerve cells do? - ANSWER specialized to initiate and conduct electrical signals
What do epithelial cells do and where are they found? - ANSWER located at surface of
body or a hollow organ; are specialized for secretion and protection
What do connective tissue cells do, and what are examples of them? - ANSWER
connect, anchor, and support body structures
loose connective tissue, dense, blood, cartilage, bone, adipose tissue
What are tissues? - ANSWER aggregate of differentiated cells w/ similar properties
What is an organ? - ANSWER a collection of tissues joined in a structural unit to serve a
common function
What is an organ system? - ANSWER organs that are linked together to serve an
overall function
What is an organism? - ANSWER coordinates all activities for homeostasis
What percentage of the body is water? - ANSWER 60%
, How much water is there for a 70 kg man? (math) - ANSWER 70 kg * 0.6 = 42 kg
1 kg = ? L - ANSWER 1 L
Where do you find *2/3* of water in humans? What is that called? - ANSWER inside the
cells called INTRACELLULAR FLUID
How do you calculate ICF? ECF? - ANSWER ICF: (2/3) * x L
ECF: (1/3) * x L
What is the plasma volume? - ANSWER 20% of the extracellular fluid that is found
inside the cardiovascular system and is constantly being pumped around to transport
molecules
What is interstitial fluid volume? - ANSWER 80% of ECF that is located between the
cells
How do you calculate plasma volume and interstitial volume? - ANSWER plasma: ECF
L * 0.2
Interstitial: ECF L * 0.8
For plasma volume, is that always the only blood volume? - ANSWER No -- add blood
cells, RBC, and WBC
What separates the intracellular fluid from the extracellular fluid compartment? -
ANSWER cell or plasma membrane
What separates the interstitial fluid from the blood plasma? - ANSWER capillary wall
Plasma contains ________ while the interstitial fluid contains very few of these. -
ANSWER proteins
What is it called when there is too much interstitial fluid? - ANSWER edema
At rest, the inside of the cell is slightly positive or negative? - ANSWER negative
An activated cell becomes positive or negative; what is that called? - ANSWER positive
action potential
Regulation of body temperature is a physiological example of ________ feedback. -
ANSWER negative
The core temperature of the body is continuously sensed by what? - ANSWER
thermoreceptors located in the body
Where is the temperature information sent to? - ANSWER hypothalamus
With Complete Answers
What is physiology? - ANSWER Study of biological function; how the body works
What is the hierarchical structure of the body systems? - ANSWER cells -> tissues ->
organs -> organ systems -> organism (body)
What are the four broad types of cells? - ANSWER 1. muscle
2. nerve
3. epithelial
4. connective tissue
What do muscle cells do? - ANSWER generate mechanical force and movement
What are the three types of muscle cells? - ANSWER skeletal, cardiac, and smooth
What do nerve cells do? - ANSWER specialized to initiate and conduct electrical signals
What do epithelial cells do and where are they found? - ANSWER located at surface of
body or a hollow organ; are specialized for secretion and protection
What do connective tissue cells do, and what are examples of them? - ANSWER
connect, anchor, and support body structures
loose connective tissue, dense, blood, cartilage, bone, adipose tissue
What are tissues? - ANSWER aggregate of differentiated cells w/ similar properties
What is an organ? - ANSWER a collection of tissues joined in a structural unit to serve a
common function
What is an organ system? - ANSWER organs that are linked together to serve an
overall function
What is an organism? - ANSWER coordinates all activities for homeostasis
What percentage of the body is water? - ANSWER 60%
, How much water is there for a 70 kg man? (math) - ANSWER 70 kg * 0.6 = 42 kg
1 kg = ? L - ANSWER 1 L
Where do you find *2/3* of water in humans? What is that called? - ANSWER inside the
cells called INTRACELLULAR FLUID
How do you calculate ICF? ECF? - ANSWER ICF: (2/3) * x L
ECF: (1/3) * x L
What is the plasma volume? - ANSWER 20% of the extracellular fluid that is found
inside the cardiovascular system and is constantly being pumped around to transport
molecules
What is interstitial fluid volume? - ANSWER 80% of ECF that is located between the
cells
How do you calculate plasma volume and interstitial volume? - ANSWER plasma: ECF
L * 0.2
Interstitial: ECF L * 0.8
For plasma volume, is that always the only blood volume? - ANSWER No -- add blood
cells, RBC, and WBC
What separates the intracellular fluid from the extracellular fluid compartment? -
ANSWER cell or plasma membrane
What separates the interstitial fluid from the blood plasma? - ANSWER capillary wall
Plasma contains ________ while the interstitial fluid contains very few of these. -
ANSWER proteins
What is it called when there is too much interstitial fluid? - ANSWER edema
At rest, the inside of the cell is slightly positive or negative? - ANSWER negative
An activated cell becomes positive or negative; what is that called? - ANSWER positive
action potential
Regulation of body temperature is a physiological example of ________ feedback. -
ANSWER negative
The core temperature of the body is continuously sensed by what? - ANSWER
thermoreceptors located in the body
Where is the temperature information sent to? - ANSWER hypothalamus
