DENTAL HYGIENE NATIONAL BOARD
EXAM EXAM SCRIPT 2026
COMPREHENSIVE QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ Synovial membrane. Answer: Secretes fluid into the joint cavity.
⩥ Dendrite. Answer: The component of a nerve that conducts impulses
toward the cell body.
⩥ Sacral vertebrae. Answer: Fuse together to form a triangular mass.
⩥ Ophthalmic nerve. Answer: The first division of the fifth cranial nerve
V, the trigeminal nerve.
⩥ Maxillary nerve. Answer: The second division of the trigeminal nerve.
⩥ Posterosuperior alveolar block. Answer: Injection technique used to
achieve anesthesia of teeth #15 and #16.
⩥ Infraorbital foramen. Answer: Located in the maxilla.
,⩥ Muscle tissue characteristics. Answer: Each muscle has two ends,
muscle cells are called sarcomeres, muscles are categorized according to
their role in movement.
⩥ Submental lymph nodes. Answer: Drain both sides of the chin, the
lower lip, the floor of mouth, the apex of tongue, and the mandibular
incisors.
⩥ Thymus gland. Answer: Matures T-lymphocytes for the immune
system and undergoes involution after puberty.
⩥ Corrugator supercilii. Answer: A muscle of facial expression in the
eye region.
⩥ Medial pterygoid. Answer: Muscle that elevates the mandible.
⩥ Buccinator. Answer: Originates from the alveolar process of the
maxilla, the alveolar process of the mandible, and the pterygomandibular
raphe.
⩥ Hypothalamus. Answer: Part of the brain that regulates homeostasis.
⩥ Trigeminal nerve. Answer: Contains both sensory and motor
components.
,⩥ Frontal plane. Answer: Divides the body into anterior and posterior
portions.
⩥ Contralateral. Answer: Teeth #3 and #14 are contralateral to each
other.
⩥ Muscle origin. Answer: Attached to the least movable part.
⩥ Muscle insertion. Answer: Attached to the most movable part.
⩥ Ramus of the mandible. Answer: Covered mostly by the temporalis
muscle.
⩥ Periosteum. Answer: The fibrous connective tissue membrane
covering the outside of bone.
⩥ Lateral pterygoid. Answer: Muscle involved in the movement of the
mandible.
⩥ Trigeminal nerve branch with sensory and motor components.
Answer: Mandibular V3
, ⩥ Two main divisions of the autonomic nervous system. Answer:
Sympathetic system, parasympathetic system
⩥ Cranial nerve providing parasympathetic innervation to cardiac
muscles, thymus, and stomach. Answer: X
⩥ Not innervated by the middle superior alveolar nerve. Answer: Tooth
#12
⩥ Nerve innervating muscles of facial expression. Answer: VII
⩥ Vein receiving blood from superficial temporal vein and facial vein.
Answer: Retromandibular
⩥ Bones involved in the temporomandibular joint articulation. Answer:
Temporal bone, mandibular condyles
⩥ Artery supplying mandibular teeth and surrounding tissues. Answer:
Inferior alveolar
⩥ Major artery supplying the brain and palpated during emergencies.
Answer: Internal carotid
EXAM EXAM SCRIPT 2026
COMPREHENSIVE QUESTIONS WITH
SOLUTIONS GRADED A+
⩥ Synovial membrane. Answer: Secretes fluid into the joint cavity.
⩥ Dendrite. Answer: The component of a nerve that conducts impulses
toward the cell body.
⩥ Sacral vertebrae. Answer: Fuse together to form a triangular mass.
⩥ Ophthalmic nerve. Answer: The first division of the fifth cranial nerve
V, the trigeminal nerve.
⩥ Maxillary nerve. Answer: The second division of the trigeminal nerve.
⩥ Posterosuperior alveolar block. Answer: Injection technique used to
achieve anesthesia of teeth #15 and #16.
⩥ Infraorbital foramen. Answer: Located in the maxilla.
,⩥ Muscle tissue characteristics. Answer: Each muscle has two ends,
muscle cells are called sarcomeres, muscles are categorized according to
their role in movement.
⩥ Submental lymph nodes. Answer: Drain both sides of the chin, the
lower lip, the floor of mouth, the apex of tongue, and the mandibular
incisors.
⩥ Thymus gland. Answer: Matures T-lymphocytes for the immune
system and undergoes involution after puberty.
⩥ Corrugator supercilii. Answer: A muscle of facial expression in the
eye region.
⩥ Medial pterygoid. Answer: Muscle that elevates the mandible.
⩥ Buccinator. Answer: Originates from the alveolar process of the
maxilla, the alveolar process of the mandible, and the pterygomandibular
raphe.
⩥ Hypothalamus. Answer: Part of the brain that regulates homeostasis.
⩥ Trigeminal nerve. Answer: Contains both sensory and motor
components.
,⩥ Frontal plane. Answer: Divides the body into anterior and posterior
portions.
⩥ Contralateral. Answer: Teeth #3 and #14 are contralateral to each
other.
⩥ Muscle origin. Answer: Attached to the least movable part.
⩥ Muscle insertion. Answer: Attached to the most movable part.
⩥ Ramus of the mandible. Answer: Covered mostly by the temporalis
muscle.
⩥ Periosteum. Answer: The fibrous connective tissue membrane
covering the outside of bone.
⩥ Lateral pterygoid. Answer: Muscle involved in the movement of the
mandible.
⩥ Trigeminal nerve branch with sensory and motor components.
Answer: Mandibular V3
, ⩥ Two main divisions of the autonomic nervous system. Answer:
Sympathetic system, parasympathetic system
⩥ Cranial nerve providing parasympathetic innervation to cardiac
muscles, thymus, and stomach. Answer: X
⩥ Not innervated by the middle superior alveolar nerve. Answer: Tooth
#12
⩥ Nerve innervating muscles of facial expression. Answer: VII
⩥ Vein receiving blood from superficial temporal vein and facial vein.
Answer: Retromandibular
⩥ Bones involved in the temporomandibular joint articulation. Answer:
Temporal bone, mandibular condyles
⩥ Artery supplying mandibular teeth and surrounding tissues. Answer:
Inferior alveolar
⩥ Major artery supplying the brain and palpated during emergencies.
Answer: Internal carotid
