BIOL251 Human Anatomy & Physiology I w/Lab
2026 | Module 6 Exam Review |70+ Questions and
Answers Summary |LockDown Browser |Portage
Learning
SECTION 1: BRAIN ANATOMY – LOBES, FISSURES & FUNCTIONAL
AREAS
Q1. The brain is divided into left and right hemispheres by which structure?
A. Central sulcus
B. Longitudinal fissure
C. Transverse fissure
D. Lateral sulcus
Answer: B
Rationale: The longitudinal fissure separates the left and right cerebral
hemispheres. The central sulcus separates the frontal and parietal lobes; the
lateral sulcus separates the temporal lobe from the frontal/parietal lobes .
Q2. The central sulcus separates which two lobes?
A. Frontal and temporal
B. Frontal and parietal
C. Parietal and occipital
D. Temporal and parietal
Answer: B
,Rationale: The central sulcus (fissure of Rolando) divides the frontal lobe (anterior)
from the parietal lobe (posterior). The precentral gyrus (motor cortex) lies anterior
to this sulcus, and the postcentral gyrus (sensory cortex) lies posterior to it .
Q3. Which lobe is responsible for conscious awareness of touch, pressure, pain,
and temperature?
A. Frontal
B. Temporal
C. Parietal
D. Occipital
Answer: C
Rationale: The parietal lobe houses the primary somatosensory cortex (postcentral
gyrus), which processes general somatic sensations including touch, pressure,
pain, and temperature .
Q4. The primary motor cortex is located in which gyrus of the frontal lobe?
A. Precentral gyrus
B. Postcentral gyrus
C. Superior temporal gyrus
D. Cingulate gyrus
Answer: A
Rationale: The precentral gyrus, located just anterior to the central sulcus,
contains the primary motor cortex. This area controls voluntary movements, with
specific regions corresponding to different body parts (motor homunculus) .
Q5. Broca's area is responsible for which function?
, A. Language comprehension
B. Motor speech production
C. Visual processing
D. Auditory reflexes
Answer: B
Rationale: Broca's area, typically located in the left frontal lobe, is responsible for
motor speech production (expressive language). Damage to this area results in
expressive aphasia—difficulty producing speech despite understanding language .
Q6. Damage to Wernicke's area results in:
A. Inability to move the tongue
B. Inability to understand language
C. Complete blindness
D. Loss of smell
Answer: B
Rationale: Wernicke's area is located in the left superior temporal gyrus. Damage
results in receptive aphasia (fluent but meaningless speech)—patients can speak
but cannot understand language or produce meaningful sentences .
Q7. Which structure connects the right and left cerebral hemispheres?
A. Internal capsule
B. Cerebral peduncles
C. Corpus callosum
D. Arbor vitae
Answer: C
Rationale: The corpus callosum is the largest commissural fiber tract in the brain,
enabling communication between the left and right hemispheres .
2026 | Module 6 Exam Review |70+ Questions and
Answers Summary |LockDown Browser |Portage
Learning
SECTION 1: BRAIN ANATOMY – LOBES, FISSURES & FUNCTIONAL
AREAS
Q1. The brain is divided into left and right hemispheres by which structure?
A. Central sulcus
B. Longitudinal fissure
C. Transverse fissure
D. Lateral sulcus
Answer: B
Rationale: The longitudinal fissure separates the left and right cerebral
hemispheres. The central sulcus separates the frontal and parietal lobes; the
lateral sulcus separates the temporal lobe from the frontal/parietal lobes .
Q2. The central sulcus separates which two lobes?
A. Frontal and temporal
B. Frontal and parietal
C. Parietal and occipital
D. Temporal and parietal
Answer: B
,Rationale: The central sulcus (fissure of Rolando) divides the frontal lobe (anterior)
from the parietal lobe (posterior). The precentral gyrus (motor cortex) lies anterior
to this sulcus, and the postcentral gyrus (sensory cortex) lies posterior to it .
Q3. Which lobe is responsible for conscious awareness of touch, pressure, pain,
and temperature?
A. Frontal
B. Temporal
C. Parietal
D. Occipital
Answer: C
Rationale: The parietal lobe houses the primary somatosensory cortex (postcentral
gyrus), which processes general somatic sensations including touch, pressure,
pain, and temperature .
Q4. The primary motor cortex is located in which gyrus of the frontal lobe?
A. Precentral gyrus
B. Postcentral gyrus
C. Superior temporal gyrus
D. Cingulate gyrus
Answer: A
Rationale: The precentral gyrus, located just anterior to the central sulcus,
contains the primary motor cortex. This area controls voluntary movements, with
specific regions corresponding to different body parts (motor homunculus) .
Q5. Broca's area is responsible for which function?
, A. Language comprehension
B. Motor speech production
C. Visual processing
D. Auditory reflexes
Answer: B
Rationale: Broca's area, typically located in the left frontal lobe, is responsible for
motor speech production (expressive language). Damage to this area results in
expressive aphasia—difficulty producing speech despite understanding language .
Q6. Damage to Wernicke's area results in:
A. Inability to move the tongue
B. Inability to understand language
C. Complete blindness
D. Loss of smell
Answer: B
Rationale: Wernicke's area is located in the left superior temporal gyrus. Damage
results in receptive aphasia (fluent but meaningless speech)—patients can speak
but cannot understand language or produce meaningful sentences .
Q7. Which structure connects the right and left cerebral hemispheres?
A. Internal capsule
B. Cerebral peduncles
C. Corpus callosum
D. Arbor vitae
Answer: C
Rationale: The corpus callosum is the largest commissural fiber tract in the brain,
enabling communication between the left and right hemispheres .
