NBRC SDS Exam Mastery: A+ Graded Notes &
Practice Questions (2025 Update
Which paired muscle covers most of the lateral aspect of the ramus of the mandible
A. Temporalis
B. Masseter
C. Lateral Pterygoid
D. Medial Pterygoid - ✔✔B. Masseter
During periodontal surgery a fenestration is exposed on tooth #6. A fenestration is a defect of which
type of bone?
A. Compact bone
B. Cancellous
C. Interdental
D. Interradicular - ✔✔A. Compact bone
The fibrous connective tissue membrane covering the outside of bone is called the
A. Endosteum
B. Periosteum
C. Hyaline Cartilage
D. Articular cartilage - ✔✔B. Periosteum
What is the purpose of the synovial membrane in a synovial joint
A. Secrete fluid into the joint cavity
B. Surrounds the joint like a fibrous sleeve
C. Innervates the muscles that move the joint
D. Convey a sense of position and movement - ✔✔A. Secrete fluid into the joint cavity
Which component of a nerve conducts impulses towards the cell body
,A. Axon
B. Soma
C. Neuron
D. Dendrite - ✔✔D. Dendrite
Which spinal vertebrae fuse together to form a triangular mass?
A. Sacral
B. Lumbar
C. Cervical
D. Thoracic - ✔✔A. Sacral
The ophthalmic nerve is the first division of the 5th cranial nerve V, the trigeminal nerve. The maximally
nerve is the second division of the trigeminal nerve.
A. Both statements are true
B. Both statements are false
C. First statement is true, second statement is false
D. First statement is false, second statement is true - ✔✔A. Both statements are true
Which injections technique would be used to achieve anesthesia of teeth #15 and #16
A. Nasopalatine block
B. ASA block
C. MSA block
D. PSA block - ✔✔D. PSA block
The infraorbital foramen is located in which bone?
A. Frontal
B. Maxilla
C. Zygomatic
D. Sphenoid - ✔✔B. Maxilla
,All of the following are formina in the sphenoid bone except the:
A. Incisive
B. Superior orbital fissure
C. Foramen ovale
D. Foramen rotundum - ✔✔A. Incisive
Which muscle retracts the tongue
A. Genioglossis
B. Hyloglossis
C. Styloglossis
D. Palatoglossis - ✔✔C. Styloglossis
Which plane of discretion divides the body into anterior and posterior portions?
A. Frontal
B. Sagittal
C. Horizontal
D. Median - ✔✔A. Frontal
Teeth #3 and #14 are
A. Ipsilateral
B. Contralateral
C. Inferior
D. Superficial - ✔✔B. Contralateral
The following characteristics describe the muscle tissue except one, which is the exception:
A. Each muscles has two ends
B. Muscle cells are called sarcomeres
, C. Muscles are categorized according to their role in movement
D. The muscle origin is attached to the least moveable part
E. The muscle insertion is attached to the most moveable part - ✔✔B. Muscle cells are called
sarcomeres
Which lymph nodes drain both sides of the chin the lower lip, floor of the mouth, the apex of the tongue
and the mandibular incisors
A. Facial
B. Submental
C. Submandibular
D. Retropharyngeal - ✔✔B. Submental
Which endocrine gland matures T lymphocytes for the immune system and undergoes involution
(reduces in size) after puberty
A. Thyroid
B. Thymus
C. Pancreas
D. Parathyroid - ✔✔B Thymus
The corrugator supercilli is a muscle of facial expression in which region
A. Eye
B. Nose
C. Mouth
D. Scalp - ✔✔A. Eye
Which muscles elevates the mandible
A. Risorius
B. Buccinator
C. Medial pterygoid
Practice Questions (2025 Update
Which paired muscle covers most of the lateral aspect of the ramus of the mandible
A. Temporalis
B. Masseter
C. Lateral Pterygoid
D. Medial Pterygoid - ✔✔B. Masseter
During periodontal surgery a fenestration is exposed on tooth #6. A fenestration is a defect of which
type of bone?
A. Compact bone
B. Cancellous
C. Interdental
D. Interradicular - ✔✔A. Compact bone
The fibrous connective tissue membrane covering the outside of bone is called the
A. Endosteum
B. Periosteum
C. Hyaline Cartilage
D. Articular cartilage - ✔✔B. Periosteum
What is the purpose of the synovial membrane in a synovial joint
A. Secrete fluid into the joint cavity
B. Surrounds the joint like a fibrous sleeve
C. Innervates the muscles that move the joint
D. Convey a sense of position and movement - ✔✔A. Secrete fluid into the joint cavity
Which component of a nerve conducts impulses towards the cell body
,A. Axon
B. Soma
C. Neuron
D. Dendrite - ✔✔D. Dendrite
Which spinal vertebrae fuse together to form a triangular mass?
A. Sacral
B. Lumbar
C. Cervical
D. Thoracic - ✔✔A. Sacral
The ophthalmic nerve is the first division of the 5th cranial nerve V, the trigeminal nerve. The maximally
nerve is the second division of the trigeminal nerve.
A. Both statements are true
B. Both statements are false
C. First statement is true, second statement is false
D. First statement is false, second statement is true - ✔✔A. Both statements are true
Which injections technique would be used to achieve anesthesia of teeth #15 and #16
A. Nasopalatine block
B. ASA block
C. MSA block
D. PSA block - ✔✔D. PSA block
The infraorbital foramen is located in which bone?
A. Frontal
B. Maxilla
C. Zygomatic
D. Sphenoid - ✔✔B. Maxilla
,All of the following are formina in the sphenoid bone except the:
A. Incisive
B. Superior orbital fissure
C. Foramen ovale
D. Foramen rotundum - ✔✔A. Incisive
Which muscle retracts the tongue
A. Genioglossis
B. Hyloglossis
C. Styloglossis
D. Palatoglossis - ✔✔C. Styloglossis
Which plane of discretion divides the body into anterior and posterior portions?
A. Frontal
B. Sagittal
C. Horizontal
D. Median - ✔✔A. Frontal
Teeth #3 and #14 are
A. Ipsilateral
B. Contralateral
C. Inferior
D. Superficial - ✔✔B. Contralateral
The following characteristics describe the muscle tissue except one, which is the exception:
A. Each muscles has two ends
B. Muscle cells are called sarcomeres
, C. Muscles are categorized according to their role in movement
D. The muscle origin is attached to the least moveable part
E. The muscle insertion is attached to the most moveable part - ✔✔B. Muscle cells are called
sarcomeres
Which lymph nodes drain both sides of the chin the lower lip, floor of the mouth, the apex of the tongue
and the mandibular incisors
A. Facial
B. Submental
C. Submandibular
D. Retropharyngeal - ✔✔B. Submental
Which endocrine gland matures T lymphocytes for the immune system and undergoes involution
(reduces in size) after puberty
A. Thyroid
B. Thymus
C. Pancreas
D. Parathyroid - ✔✔B Thymus
The corrugator supercilli is a muscle of facial expression in which region
A. Eye
B. Nose
C. Mouth
D. Scalp - ✔✔A. Eye
Which muscles elevates the mandible
A. Risorius
B. Buccinator
C. Medial pterygoid
