Which vessels have the thickest tunica media?
A) Small veins
B) Large veins
C) Capillaries
D) Small arteries
E) Large arteries
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Question 2) The term nerve fiber refers to a(n) ________.
A) axon
B) organelle in nerve cells
C) bundle of macromolecules in nerve cells
D) organ
E) nerve cell
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Question 3) Which of the following is not true of a thoracic vertebra?
A) The body is more massive than those of cervical vertebrae but less than those of lumbar vertebrae.
B) The spinous process is pointed and angled sharply downward.
C) It usually has a facet at the end of each transverse process for attachment of a rib.
D) The body has facets as points of articulation for ribs.
E) It has a pair of transverse foramina.
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Question 4) The fact that most of us have five lumbar vertebrae, but some people have six and some have four, is an example of ________ variation among organisms.
A) anatomical
B) reductionist
C) cellular
D) physiological
E) holistic
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Question 5) Cell division is stimulated by ________ and suppressed by ________.
A) mitosis; cytokinesis
B) mitosis; contact inhibition
C) cell size; contact inhibition
D) growth factors; contact inhibition
E) cell size; cytokinesis
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Question 6) Arteries are sometimes called the ________ vessels of the cardiovascular system because they have strong-resilient tissue structure.
A) capacitance
B) fenestrated
C) resistance
D) hydrodynamic
E) compliance
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Question 7) Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?
A) Enkephalins
B) Endogenous opioid
C) Dynorphin
D) Bradykinin
E) Endorphins
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Question 8) Pain, heat, and cold are detected by ________.
A) tactile corpuscles
B) free nerve endings
C) end (Krause) bulbs
D) tactile (Meissner) discs
E) lamellar (Pacinian) corpuscles
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Question 9) Which of these cannot cause a mutation?
A) A chemical
B) A mistake made by the RNA polymerase
C) A mistake made by the DNA polymerase
D) A virus
E) Radiation
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Question 10) Which of the following is only found on the axis vertebra?
A) Superior articular facet
B) Vertebral arch
C) Spinous process
D) Transverse foramen
E) Dens (odontoid process)
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