Biology 242 Final Exam Review Solved

Biology 242 Final Exam Review Solved Papers - Questions with Complete Solutions

EXAM 1

which of the following describes the nervous system integrative function?

• Senses changes in the environment
• Responds to stimuli by gland secretion or muscle

contraction

• analyzes sensory information, stores information, makes

decisions

• guide the migration of young neurons - Correct Answers

✅C. analyzes sensory information, stores information, makes decisions which of the following is NOT a characteristic of neurons?

• they conduct impulses
• they have an exceptionally high metabolic rate
• they are mitotic
• they have extreme longevity - Correct Answers ✅C.

they are mitotic

Schwann cells are functionally similar to:

• oligodendrocytes
• ependymal cells
• astrocytes 1 / 4

Biology 242 Final Exam Review Solved Papers - Questions with Complete Solutions

• microglia - Correct Answers ✅B. ependymal cells

Nerve impulses leading to the brain carry information about cool temperature on the skin. The nerve fibers sending these signals will most likely belong to which division of the nervous system?

• sensory (afferent) division
• somatic nervous system
• sympathetic division
• parasympathetic division - Correct Answers ✅A.

Sensory (afferent) division The concentration of ions in the chemical environment surrounding the neurons must be tightly regulated for neurons to function properly. Which of the following cells is most responsible for this?

• Satellite cells
• astrocytes
• schwann cells
• obligodendrocytes - Correct Answers ✅B. astrocytes

Bipolar neurons are commonly:

• called neuroglial cells
• motor neurons 2 / 4

Biology 242 Final Exam Review Solved Papers - Questions with Complete Solutions

• found in ganglia
• found in the retina of the eye - Correct Answers ✅D.

found in the retina of the eye Collections of nerve cell bodies outside the central nervous

system are called:

• nuclei
• ganglia
• nerves
• tracts - Correct Answers ✅B. ganglia

The interior surface of a neuron's plasma membrane at

resting membrane potential will have a:

• positive charge and contains more sodium than outside of

the cell

• negative charge and contains more sodium than outside of

the cell

• negative charge and contains less sodium than outside of

the cell

• positive charge and contains less sodium than outside of

the cell - Correct Answers ✅C. negative charge and contains less sodium than outside of the cell

Saltatory conduction is made possible by: 3 / 4

Biology 242 Final Exam Review Solved Papers - Questions with Complete Solutions

• large nerve fibers
• Diphasic impulses
• erratic transmission of nerve impulses
• the myelin sheath - Correct Answers ✅D. the myelin

sheath Which of the following neurotransmitters inhibits pain and is mimicked by morphine, heroin, and methadone?

• nitric oxide
• acetylcholine
• serotonin
• endorphin - Correct Answers ✅D. endorphin

Which fissure separates the cerebral hemisphere?

• Central fissure
• Lateral fissure
• Longitudinal fissure
• Parieto-occipital fissure - Correct Answers ✅C.

Longitudinal fissue Which of the following best describes the cerebrum?

• Visceral commons center
• Executive suite
• / 4