1) match these brain areas with their locations.
a. primary somatic sensory cortex
b. visual cortex
c. auditory cortex
d. association areas
occipital lobe
2) an excitatory postsynaptic potential (epsp)
a) depolarizes a neuron, decreasing the likelihood of an action potential.
b) hyperpolarizes a neuron, decreasing the likelihood of an action potential.
c) depolarizes a neuron, increasing the likelihood of an action potential.
d) hyperpolarizes a neuron, increasing the likelihood of an action potential.
3) when the diaphragm and external intercostal muscles contract,
a) expiration occurs.
b) intrapulmonary pressure increases.
c) intrapleural pressure decreases.
d) the volume of the lungs decreases.
e) all of the answers are correct.
4) which organ is not known to include a special portal system for blood?
a) heart
b) kidney
c) liver
d) brain
e) all of these organs have portal systems.
5) isozymes
a) are enzymes with slightly different structure that catalyze the same reaction.
b) are enzymes with the same structure that catalyze different reactions.
c) are inorganic molecules that bind to and thereby activate enzymes.
d) are the inactive form of an enzyme.
6) create a map that integrates the following terms: alternative splicing, constitutive,
interference, mrna, post-translation modification, regulated, repression, induction,
translation, and trna. add terms as needed.
7) when a skeletal muscle generates enough force during contraction to shorten,
a) only the sarcomere will shorten.
b) only the a band will shorten.
c) only the i band will shorten.
d) the sarcomere and the i band will shorten.
e) the sarcomere, the a band and the i band will shorten.
8) when stimulated by a particular hormone, there is a marked increase in the activity of
g proteins in the membrane. the hormone is probably
a) a steroid.
b) a peptide.
c) testosterone.
d) estrogen.
e) aldosterone.
9) the force generated by a single muscle fiber can be increased by
a) increasing frequency of action potentials only.
b) increasing muscle length beyond optimal only.
c) increasing the asynchrony of recruitment only.
d) increasing frequency of action potentials and increasing muscle length beyond
optimal only.
10) match from the following list.
a. a band
b. i band
c. z disk
d. h zone
e. m line
what are the three types of muscle tissues in the human body? what are the two
common functions of muscles?
11) match the disease with the description.
a. addison’s disease
b. cushing’s disease
c. graves’ disease
d. paget’s disease
some symptoms mimic diabetes mellitus.
12) diagram a table explaining the feedback of estrogen on the anterior pituitary during
the ovarian cycle.
13) to perform surgery with a minimum of pain for the patient and hassle for the
surgeon, a patient may be administered a general anesthetic to prevent sensation and
consciousness, as well as a paralytic to prevent reflexive muscle spasms. from what you
have learned of motor control, suggest mechanisms by which a paralytic can prevent
muscle contraction. with paralytics, what extra measure must be taken to keep the
patient alive? name such a paralytic agent.
14) what type of epithelium would one expect to compose the alveoli (air sacs) in the
lungs? defend your answer.
15) the lining of the heart and blood vessels is called ________.
16) motor fibers leave the spinal cord’s gray matter via this
17) stem cell research has become a political topic in the last few decades. explain why
the research is being done, why some cells are favored for this research over others, and
what the factors are that cause some people not to support this type of research. are any
alternatives available that are less opposed?
18) list four factors that affect normal body growth.
19) a combination of two or more atoms that has physical and chemical properties that
differ from the atoms that compose it is called a(n) ________.