1 MAXE · 251 DOIB
GENEVA
College
COLLEGE
G
Department of Natural Sciences
EST. 1848
P R O C H R I S T O E T P AT R I A
exam 1 biod 152
H U M A N A N ATO M Y A N D P H YS I O LO G Y I I — N E R VO US SYST E M E X A M I N AT I O N
INSTITUTION Portage Learning / Geneva College COURSE CODE BIOD 152
PROGRAM Pre-Nursing / Health Sciences ACADEMIC YEAR
EXAM TITLE exam 1 biod 152 TOTAL QUESTIONS 40 Questions
COURSE TITLE Human Anatomy and Physiology II FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ Content covers nervous system organization, neuron structure and function, action potentials,
neurotransmitters, reflexes, and neuromuscular junction.
▸ Correct answers and detailed rationales appear below each question.
, SECTION I — BIOD 152: NERVOUS SYSTEM — EXAM 1 Questions 1 – 40
1. A collection of cell bodies found in the peripheral nervous system is called:
A. Nucleus
B. Ganglia
C. Tract
D. Nerve
CORRECT ANSWER B — Ganglia
RATIONALE Ganglia (singular: ganglion) are collections of neuron cell bodies located in the
peripheral nervous system (PNS). In contrast, a nucleus is a collection of cell
bodies within the central nervous system (CNS). A tract is a bundle of axons in the
CNS. A nerve is a bundle of axons in the PNS. This terminology distinction is
fundamental to neuroanatomy.
2. Which part of the autonomic nervous system increases digestion?
A. Sympathetic
B. Parasympathetic
C. Somatic
D. Central
CORRECT ANSWER B — Parasympathetic
RATIONALE The parasympathetic nervous system is the "rest and digest" division — it
promotes digestion, slows heart rate, and stimulates gastrointestinal activity. The
sympathetic system is "fight or flight" — it inhibits digestion while accelerating
heart rate and respiration. The somatic system controls voluntary skeletal muscle.
These autonomic divisions have largely opposing effects on visceral organs.
, 3. The ventral root of a spinal nerve contains what type of neurons?
A. Sensory (Afferent)
B. Motor (Efferent)
C. Interneurons
D. Both sensory and motor
CORRECT ANSWER B — Motor (Efferent) neurons
RATIONALE The ventral (anterior) root carries motor (efferent) fibers from the spinal cord to
muscles and glands. The dorsal (posterior) root carries sensory (afferent) fibers
into the spinal cord, with cell bodies located in the dorsal root ganglion (DRG).
The two roots merge to form a mixed spinal nerve.
4. This part of a neuron conducts nerve impulses towards the cell body:
A. Axon
B. Dendrites
C. Axon terminal
D. Myelin sheath
CORRECT ANSWER B — Dendrites
RATIONALE Dendrites are branched extensions that receive signals from other neurons and
conduct electrical impulses TOWARD the cell body (soma). The axon conducts
impulses AWAY from the cell body toward the axon terminals. This functional
polarity is fundamental to neuronal signal propagation.