BIOD 151 TEST BANK VERSION 1 2 2026
ESSENTIAL HUMAN ANATOMY
PHYSIOLOGY VERIFIED QUESTIONS
GRADED A+
⩥ Orbicularis oris.
Answer: Action: mouth closure: closes lips, protrudes lips forward,
presses lips against teeth
Innervation: facial nerve (CN VII)
⩥ Zygomaticus major/minor.
Answer: Action: pull corners of lips upward
Innervation: facial nerve (CN VII)
⩥ Risorius.
Answer: Action: pulls the corners of the mouth posteriorly (grin or
grimace)
Innervation: facial nerve (CN VII)
,⩥ Frontalis (occipitofrontailis).
Answer: Action: raise eyebrows
Innervation: facial nerve (CN VII)
⩥ Buccinator.
Answer: Action: compress cheeks
Innervation: facial nerve (CN VII)
⩥ Masseter.
Answer: Action: jaw closure
Innervation: trigeminal nerve (CN V, mandibular branch)
⩥ Temporalis.
Answer: Action: Elevates mandible, closes jaw
Innervation: trigeminal nerve (CN V, mandibular branch)
⩥ lateral flexion.
Answer: Side-bending left or right
,⩥ neck flexion.
Answer: chin to chest
⩥ bilateral.
Answer: both sides
⩥ unilateral.
Answer: one-sided
⩥ Semispinalis Capitis.
Answer: Origin: articular processes of inferior cervical & transverse
process of superior thoracic vertebrae
Insertion: occipital bone
Action: Bilateral extend head Unilateral laterally flexes neck to same
side
Innervation: spinal nerves
⩥ Sternocleidomastoid.
Answer: Origin: sternal end of clavicle and manubrium
, Insertion: mastoid region of skull
Action:Bilateral: neck flexionUnilateral: turns face to opposite side
Innervation: accessory nerve (CN XI)
⩥ Splenius Capitis.
Answer: Origin: spinous process AND ligaments of inferior cervical
vertebrae
Insertion: mastoid process, occipital bone of skull
Action:Bilateral extend headUnilateral laterally flexes neck to same side
Innervation: cervical spinal nerves
⩥ Longissimus cervicis.
Answer: Origin: transverse processes of superior thoracic vertebrae
Insertion: transverse process of middle and superior cervical vertebrae
ESSENTIAL HUMAN ANATOMY
PHYSIOLOGY VERIFIED QUESTIONS
GRADED A+
⩥ Orbicularis oris.
Answer: Action: mouth closure: closes lips, protrudes lips forward,
presses lips against teeth
Innervation: facial nerve (CN VII)
⩥ Zygomaticus major/minor.
Answer: Action: pull corners of lips upward
Innervation: facial nerve (CN VII)
⩥ Risorius.
Answer: Action: pulls the corners of the mouth posteriorly (grin or
grimace)
Innervation: facial nerve (CN VII)
,⩥ Frontalis (occipitofrontailis).
Answer: Action: raise eyebrows
Innervation: facial nerve (CN VII)
⩥ Buccinator.
Answer: Action: compress cheeks
Innervation: facial nerve (CN VII)
⩥ Masseter.
Answer: Action: jaw closure
Innervation: trigeminal nerve (CN V, mandibular branch)
⩥ Temporalis.
Answer: Action: Elevates mandible, closes jaw
Innervation: trigeminal nerve (CN V, mandibular branch)
⩥ lateral flexion.
Answer: Side-bending left or right
,⩥ neck flexion.
Answer: chin to chest
⩥ bilateral.
Answer: both sides
⩥ unilateral.
Answer: one-sided
⩥ Semispinalis Capitis.
Answer: Origin: articular processes of inferior cervical & transverse
process of superior thoracic vertebrae
Insertion: occipital bone
Action: Bilateral extend head Unilateral laterally flexes neck to same
side
Innervation: spinal nerves
⩥ Sternocleidomastoid.
Answer: Origin: sternal end of clavicle and manubrium
, Insertion: mastoid region of skull
Action:Bilateral: neck flexionUnilateral: turns face to opposite side
Innervation: accessory nerve (CN XI)
⩥ Splenius Capitis.
Answer: Origin: spinous process AND ligaments of inferior cervical
vertebrae
Insertion: mastoid process, occipital bone of skull
Action:Bilateral extend headUnilateral laterally flexes neck to same side
Innervation: cervical spinal nerves
⩥ Longissimus cervicis.
Answer: Origin: transverse processes of superior thoracic vertebrae
Insertion: transverse process of middle and superior cervical vertebrae
