BIOD 152 Lab 3 Exam Human Anatomy
Physiology Portage 2026/2027 – Questions
and Answers | 100% Verified | Detailed
Rationales – Pass Guaranteed – A+ Graded
BIOD 152 Lab 3 Exam
Human Anatomy & Physiology II | Portage Learning | 2026/2027 Edition | 100
Questions with Verified Answers and Detailed Rationales
SECTION 1: Nervous System & Brain Anatomy
1. The blue line in the picture above is called the:
A. Longitudinal fissure
B. Central sulcus
C. Lateral sulcus
D. Transverse fissure
Answer: B
Rationale: The central sulcus is the prominent groove separating the frontal lobe
from the parietal lobe on the lateral surface of the brain . It runs vertically down
the cerebral hemisphere and is a key landmark for identifying the primary motor
and somatosensory cortices.
2. The part of the brain (indicated by the blue pin) in the picture above is:
A. Rostral, cerebrum
B. Caudal, cerebrum
,C. Rostral, cerebellum
D. Caudal, cerebellum
Answer: A
Rationale: The cerebrum is the rostral (toward the front) portion of the brain,
consisting of the two cerebral hemispheres . The cerebellum is located caudally
(toward the back), below the occipital lobes.
3. The folds in the region above (indicated by the blue pin) are called:
A. Sulci
B. Gyri
C. Fissures
D. Arbor vitae
Answer: B
Rationale: Gyri are the raised ridges or folds on the surface of the cerebral
cortex . Sulci are the grooves between gyri. Arbor vitae refers to the branching
white matter pattern in the cerebellum.
4. The branching pattern of white matter within the cerebellum is called the:
A. Arbor vitae
B. Folia
C. Vermis
D. Peduncle
Answer: A
Rationale: Arbor vitae, meaning "tree of life," refers to the distinct branching
pattern of white matter found deep within the cerebellum . This pattern is visible
in sagittal sections of the cerebellum.
5. The folds on the surface of the cerebellum are called:
,A. Gyri
B. Sulci
C. Folia
D. Fissures
Answer: C
Rationale: Folia are the parallel folds or ridges on the cerebellar surface . Unlike
the broad gyri of the cerebrum, folia are thinner and more closely spaced.
6. Injury to the area of the brain (indicated by the pin above) would most likely
cause impaired:
A. Motor planning
B. Interpreting of general senses
C. Vision
D. Hearing and smell
Answer: B
Rationale: The region indicated is the somatosensory cortex, located in the
postcentral gyrus of the parietal lobe, which is responsible for interpreting
general sensory information such as touch, pressure, and pain .
7. This region of the brain is best described as the temporal lobe:
A. Motor coordination
B. Vision
C. Hearing and Smell
D. Motor planning
Answer: C
Rationale: The temporal lobe is responsible for processing auditory information
and olfactory (smell) sensations . It also plays a role in memory and language
comprehension.
, 8. This region of the brain controls nuclei that transmit signals between the
cerebellum and cerebrum:
A. Medulla oblongata
B. Pons
C. Midbrain
D. Thalamus
Answer: B
Rationale: The pons serves as a bridge between the cerebellum and cerebrum,
containing nuclei that relay signals between these regions . It also contains
nuclei involved in respiration and sleep.
9. Damage to the cranial nerve (highlighted in blue, above) causes:
A. Drooping eyelid and eyeball to rest laterally
B. Bell's palsy
C. Hoarseness of voice
D. Loss of sour taste
Answer: A
Rationale: Damage to the oculomotor nerve (CN III) causes ptosis (drooping
eyelid) and the eye to rest laterally due to loss of innervation to most
extraocular muscles . The lateral rectus muscle, innervated by CN VI, remains
functional.
10. Unilateral damage to the cranial nerve highlighted in blue (above) causes:
A. Only one side will move superiorly when shrugging shoulders
B. Drooling
C. Dizziness
D. Deceleration of heart rate
Physiology Portage 2026/2027 – Questions
and Answers | 100% Verified | Detailed
Rationales – Pass Guaranteed – A+ Graded
BIOD 152 Lab 3 Exam
Human Anatomy & Physiology II | Portage Learning | 2026/2027 Edition | 100
Questions with Verified Answers and Detailed Rationales
SECTION 1: Nervous System & Brain Anatomy
1. The blue line in the picture above is called the:
A. Longitudinal fissure
B. Central sulcus
C. Lateral sulcus
D. Transverse fissure
Answer: B
Rationale: The central sulcus is the prominent groove separating the frontal lobe
from the parietal lobe on the lateral surface of the brain . It runs vertically down
the cerebral hemisphere and is a key landmark for identifying the primary motor
and somatosensory cortices.
2. The part of the brain (indicated by the blue pin) in the picture above is:
A. Rostral, cerebrum
B. Caudal, cerebrum
,C. Rostral, cerebellum
D. Caudal, cerebellum
Answer: A
Rationale: The cerebrum is the rostral (toward the front) portion of the brain,
consisting of the two cerebral hemispheres . The cerebellum is located caudally
(toward the back), below the occipital lobes.
3. The folds in the region above (indicated by the blue pin) are called:
A. Sulci
B. Gyri
C. Fissures
D. Arbor vitae
Answer: B
Rationale: Gyri are the raised ridges or folds on the surface of the cerebral
cortex . Sulci are the grooves between gyri. Arbor vitae refers to the branching
white matter pattern in the cerebellum.
4. The branching pattern of white matter within the cerebellum is called the:
A. Arbor vitae
B. Folia
C. Vermis
D. Peduncle
Answer: A
Rationale: Arbor vitae, meaning "tree of life," refers to the distinct branching
pattern of white matter found deep within the cerebellum . This pattern is visible
in sagittal sections of the cerebellum.
5. The folds on the surface of the cerebellum are called:
,A. Gyri
B. Sulci
C. Folia
D. Fissures
Answer: C
Rationale: Folia are the parallel folds or ridges on the cerebellar surface . Unlike
the broad gyri of the cerebrum, folia are thinner and more closely spaced.
6. Injury to the area of the brain (indicated by the pin above) would most likely
cause impaired:
A. Motor planning
B. Interpreting of general senses
C. Vision
D. Hearing and smell
Answer: B
Rationale: The region indicated is the somatosensory cortex, located in the
postcentral gyrus of the parietal lobe, which is responsible for interpreting
general sensory information such as touch, pressure, and pain .
7. This region of the brain is best described as the temporal lobe:
A. Motor coordination
B. Vision
C. Hearing and Smell
D. Motor planning
Answer: C
Rationale: The temporal lobe is responsible for processing auditory information
and olfactory (smell) sensations . It also plays a role in memory and language
comprehension.
, 8. This region of the brain controls nuclei that transmit signals between the
cerebellum and cerebrum:
A. Medulla oblongata
B. Pons
C. Midbrain
D. Thalamus
Answer: B
Rationale: The pons serves as a bridge between the cerebellum and cerebrum,
containing nuclei that relay signals between these regions . It also contains
nuclei involved in respiration and sleep.
9. Damage to the cranial nerve (highlighted in blue, above) causes:
A. Drooping eyelid and eyeball to rest laterally
B. Bell's palsy
C. Hoarseness of voice
D. Loss of sour taste
Answer: A
Rationale: Damage to the oculomotor nerve (CN III) causes ptosis (drooping
eyelid) and the eye to rest laterally due to loss of innervation to most
extraocular muscles . The lateral rectus muscle, innervated by CN VI, remains
functional.
10. Unilateral damage to the cranial nerve highlighted in blue (above) causes:
A. Only one side will move superiorly when shrugging shoulders
B. Drooling
C. Dizziness
D. Deceleration of heart rate
