Portage Learning BIOD 152 –
Module 2 Exam (2026-2027)
Section A: Multiple Choice & True/False (30 points)
Q1:
The primary somatosensory cortex, responsible for processing touch, pressure, and pain, is
located in the:
A. Temporal lobe
B. Occipital lobe
C. Parietal lobe (postcentral gyrus) [CORRECT]
D. Frontal lobe (precentral gyrus)
Rationale: The postcentral gyrus of the parietal lobe is the anatomical location for the
primary somatosensory cortex. The frontal lobe (D) houses the motor cortex, the occipital
lobe (B) processes vision, and the temporal lobe (A) processes auditory input.
Q2:
Damage to Broca’s area typically results in:
A. Inability to understand written language.
B. Inability to speak fluently or form words (expressive non-fluent aphasia). [CORRECT]
C. Loss of balance and coordination.
D. Loss of sensation on the contralateral side of the body.
Rationale: Broca’s area, located in the frontal lobe (usually left hemisphere), is essential for
motor speech production. Damage produces expressive aphasia. Wernicke’s area damage
(temporal lobe) causes receptive aphasia (inability to understand language, Option A). The
cerebellum controls balance (Option C), and the parietal lobe manages somatosensation
(Option D).
Q3:
Which structure serves as the major relay station for sensory information traveling to the
cerebral cortex, except for the sense of smell?
A. Hypothalamus
B. Thalamus [CORRECT]
C. Midbrain
D. Medulla oblongata
, Rationale: The thalamus acts as the "gateway to the cortex," filtering and relaying sensory
signals. The hypothalamus (A) regulates homeostasis, the midbrain (C) processes
visual/auditory reflexes, and the medulla (D) controls autonomic vital functions.
Q4:
True or False: The cerebellum is primarily responsible for initiating voluntary skeletal muscle
contractions.
Answer: FALSE [CORRECT] (Correction: The cerebellum coordinates and fine-tunes voluntary
movements, maintains balance, and posture; the frontal lobe's primary motor cortex initiates
voluntary contractions.)
Rationale: The cerebellum modifies and coordinates movement but does not initiate it.
Initiation occurs in the primary motor cortex of the frontal lobe.
Q5:
The hypothalamus is responsible for all of the following EXCEPT:
A. Regulating body temperature.
B. Controlling hunger and thirst.
C. Producing cerebrospinal fluid (CSF). [CORRECT]
D. Linking the nervous system to the endocrine system via the pituitary gland.
Rationale: The hypothalamus maintains homeostasis (A, B, D). CSF is produced by the
choroid plexus within the ventricles, not the hypothalamus.
Q6:
The tough, outermost meningeal layer that attaches to the inner surface of the skull is the:
A. Pia mater
B. Arachnoid mater
C. Dura mater [CORRECT]
D. Subarachnoid mater
Rationale: The meninges layer from superficial to deep is Dura (tough outer), Arachnoid
(web-like middle), and Pia (delicate inner adhering to brain). The subarachnoid space lies
between arachnoid and pia.
Q7:
True or False: The dorsal root of a spinal nerve contains motor (efferent) fibers that carry
commands from the CNS to muscles and glands.
Answer: FALSE [CORRECT] (Correction: The dorsal root contains sensory (afferent) fibers
entering the spinal cord; the ventral root contains motor (efferent) fibers exiting the cord.)
Rationale: Dorsal (posterior) roots are exclusively sensory and bear the dorsal root ganglion
containing sensory neuron cell bodies. Ventral (anterior) roots are motor.
Module 2 Exam (2026-2027)
Section A: Multiple Choice & True/False (30 points)
Q1:
The primary somatosensory cortex, responsible for processing touch, pressure, and pain, is
located in the:
A. Temporal lobe
B. Occipital lobe
C. Parietal lobe (postcentral gyrus) [CORRECT]
D. Frontal lobe (precentral gyrus)
Rationale: The postcentral gyrus of the parietal lobe is the anatomical location for the
primary somatosensory cortex. The frontal lobe (D) houses the motor cortex, the occipital
lobe (B) processes vision, and the temporal lobe (A) processes auditory input.
Q2:
Damage to Broca’s area typically results in:
A. Inability to understand written language.
B. Inability to speak fluently or form words (expressive non-fluent aphasia). [CORRECT]
C. Loss of balance and coordination.
D. Loss of sensation on the contralateral side of the body.
Rationale: Broca’s area, located in the frontal lobe (usually left hemisphere), is essential for
motor speech production. Damage produces expressive aphasia. Wernicke’s area damage
(temporal lobe) causes receptive aphasia (inability to understand language, Option A). The
cerebellum controls balance (Option C), and the parietal lobe manages somatosensation
(Option D).
Q3:
Which structure serves as the major relay station for sensory information traveling to the
cerebral cortex, except for the sense of smell?
A. Hypothalamus
B. Thalamus [CORRECT]
C. Midbrain
D. Medulla oblongata
, Rationale: The thalamus acts as the "gateway to the cortex," filtering and relaying sensory
signals. The hypothalamus (A) regulates homeostasis, the midbrain (C) processes
visual/auditory reflexes, and the medulla (D) controls autonomic vital functions.
Q4:
True or False: The cerebellum is primarily responsible for initiating voluntary skeletal muscle
contractions.
Answer: FALSE [CORRECT] (Correction: The cerebellum coordinates and fine-tunes voluntary
movements, maintains balance, and posture; the frontal lobe's primary motor cortex initiates
voluntary contractions.)
Rationale: The cerebellum modifies and coordinates movement but does not initiate it.
Initiation occurs in the primary motor cortex of the frontal lobe.
Q5:
The hypothalamus is responsible for all of the following EXCEPT:
A. Regulating body temperature.
B. Controlling hunger and thirst.
C. Producing cerebrospinal fluid (CSF). [CORRECT]
D. Linking the nervous system to the endocrine system via the pituitary gland.
Rationale: The hypothalamus maintains homeostasis (A, B, D). CSF is produced by the
choroid plexus within the ventricles, not the hypothalamus.
Q6:
The tough, outermost meningeal layer that attaches to the inner surface of the skull is the:
A. Pia mater
B. Arachnoid mater
C. Dura mater [CORRECT]
D. Subarachnoid mater
Rationale: The meninges layer from superficial to deep is Dura (tough outer), Arachnoid
(web-like middle), and Pia (delicate inner adhering to brain). The subarachnoid space lies
between arachnoid and pia.
Q7:
True or False: The dorsal root of a spinal nerve contains motor (efferent) fibers that carry
commands from the CNS to muscles and glands.
Answer: FALSE [CORRECT] (Correction: The dorsal root contains sensory (afferent) fibers
entering the spinal cord; the ventral root contains motor (efferent) fibers exiting the cord.)
Rationale: Dorsal (posterior) roots are exclusively sensory and bear the dorsal root ganglion
containing sensory neuron cell bodies. Ventral (anterior) roots are motor.
