Free Practice Questions for FC ORL(SA) Part I

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Key Facts: FC ORL(SA) Part I Exam

100 Qs

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CMSA FC ORL(SA) Study Bank

R15 500

CMSA Exam Fee

CMSA 2026 Fee Schedule

50%

Pass Mark

CMSA FC ORL Regulations

CMSA

Exam Body

College of Otorhinolaryngologists of SA

The CMSA FC ORL(SA) Part I is a comprehensive primary examination assessing foundational basic sciences in Otorhinolaryngology. Passing requires in-depth mastery of head and neck anatomy, neuro-otology, laryngeal physiology, otopathology, and ENT surgical principles.

Sample FC ORL(SA) Part I Practice Questions

Try these sample questions to review concepts for the FC ORL(SA) Part I exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which intratemporal segment of the facial nerve (cranial nerve VII) is anatomically the narrowest and most susceptible to ischemic entrapment and compression in Bell's palsy?

A.Labyrinthine segment

B.Tympanic (horizontal) segment

C.Mastoid (vertical) segment

D.Geniculate ganglion

Explanation: The labyrinthine segment of the facial nerve is the narrowest portion of the Fallopian canal, measuring approximately 0.68 mm in diameter. Because it lacks a rich vascular collateral network and possesses a tight fibrous sheath, edema of the nerve within this narrow segment leads to ischemic entrapment, making it the primary site of compression in Bell's palsy.

2Which intrinsic muscle of the larynx is the sole abductor of the vocal folds?

A.Posterior cricoarytenoid muscle

B.Lateral cricoarytenoid muscle

C.Cricothyroid muscle

D.Thyroarytenoid muscle

Explanation: The posterior cricoarytenoid (PCA) muscle is the only vocal fold abductor in the larynx. It originates from the posterior surface of the cricoid lamina and inserts into the muscular process of the arytenoid cartilage, pulling the muscular process medially and rotating the vocal process laterally to open the glottis.

3The middle ear ossicle that directly articulates with the oval window (fenestra vestibuli) is the:

A.Stapes

B.Malleus

C.Incus

D.Lenticular process

Explanation: The stapes is the innermost ossicle whose footplate (base of stapes) fits into the oval window and is held in place by the annular ligament. Movement of the stapes footplate transfers acoustic vibrations into fluid waves within the perilymph of the scala vestibuli.

4Which cranial nerve provides general sensory innervation to the anterior two-thirds of the tongue?

A.Trigeminal nerve (V3 via lingual nerve)

B.Facial nerve (VII via chorda tympani)

C.Glossopharyngeal nerve (IX)

D.Vagus nerve (X via internal laryngeal nerve)

Explanation: General somatic sensation (pain, touch, temperature) to the anterior two-thirds of the tongue is conveyed by the lingual nerve, a branch of the mandibular division of the trigeminal nerve (CN V3). Special taste sensation to the same area is carried by the chorda tympani nerve (CN VII).

5The sensory nerve supplying the mucosa of the larynx ABOVE the true vocal folds is the:

A.Internal branch of the superior laryngeal nerve

B.External branch of the superior laryngeal nerve

C.Recurrent laryngeal nerve

D.Glossopharyngeal nerve

Explanation: The internal branch of the superior laryngeal nerve (a branch of CN X) pierces the thyrohyoid membrane alongside the superior laryngeal artery to provide sensory innervation to the laryngeal mucosa extending from the epiglottis down to the level of the true vocal cords (supraglottis).

6Which structure forms the medial wall of the middle ear (tympanic cavity)?

A.Promontory of the basal turn of the cochlea

B.Tympanic membrane

C.Posterior wall of the glenoid fossa

D.Teat-like mastoid process

Explanation: The medial wall (labyrinthine wall) of the middle ear cavity separates it from the inner ear. Its prominent central feature is the promontory, a rounded bulge produced by the basal turn of the cochlea, which is covered by the tympanic plexus of nerves (CN IX).

7During a submandibular gland excision, which neural structure is at risk of injury near the inferior border of the mandible as it crosses the facial artery and vein?

A.Marginal mandibular branch of the facial nerve

B.Lingual nerve

C.Hypoglossal nerve

D.Cervical branch of the facial nerve

Explanation: The marginal mandibular branch of the facial nerve runs along or up to 1-2 cm below the inferior border of the mandible, superficial to the deep cervical fascia and crossing anterior/superficial to the facial artery and vein. It must be identified and protected during submandibular gland surgery to prevent ipsilateral lower lip weakness (depressor anguli oris paralysis).

8Which fascial boundary separates the anterior (pre-styloid) space from the posterior (post-styloid) space within the parapharyngeal space?

A.Styloid process and attached muscles (styloid diaphragm / fascia of Tensor-Veli-Palatini)

B.Prevertebral fascia

C.Alar fascia

D.Buccopharyngeal fascia

Explanation: The parapharyngeal space is divided into pre-styloid and post-styloid compartments by an imaginary coronal plane running from the styloid process and its attached muscles (stylohyoid, styloglossus, stylopharyngeus) and aponeurosis (tensor veli palatini fascia/styloid diaphragm). The pre-styloid space contains fat and minor salivary tissue, while the post-styloid space contains the carotid sheath (carotid artery, internal jugular vein, CN IX-XII, and sympathetic chain).

9The ostium of the maxillary sinus drains directly into which anatomical area of the lateral nasal wall?

A.Ethmoid infundibulum within the middle meatus

B.Superior meatus

C.Inferior meatus

D.Sphenoethmoidal recess

Explanation: The natural ostium of the maxillary sinus opens into the ethmoid infundibulum, a curved channel located in the middle meatus bounded medially by the uncinate process and laterally by the lamina papyracea and ethmoid bulla.

10In the petrous apex, the abducens nerve (CN VI) passes under Grüber's ligament (petrosphenoidal ligament) through which specialized fibro-osseous canal?

A.Dorello's canal

B.Porus acusticus

C.Foramen lacerum

D.Vidian canal

Explanation: Dorello's canal is a small fibro-osseous space situated at the tip of the petrous apex bounded by the petrosphenoidal ligament (Grüber's ligament) and the petrous bone. The abducens nerve (CN VI) traverses Dorello's canal to enter the cavernous sinus; compression here due to petrous apicitis causes CN VI palsy (a classic component of Gradenigo's syndrome).

About the FC ORL(SA) Part I Exam

The FC ORL(SA) Part I examination is the primary basic science qualification awarded by the College of Otorhinolaryngologists of South Africa. It assesses candidate knowledge in head and neck anatomy, temporal bone and laryngeal micro-anatomy, auditory and vestibular neurophysiology, ENT pathology, and pharmacological/surgical principles essential for specialist registrar training in Otorhinolaryngology-Head and Neck Surgery.

Exam sponsor: College of Otorhinolaryngologists of South Africa (Colleges of Medicine of South Africa). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Written papers examining basic medical sciences relevant to otorhinolaryngology: Head & Neck Anatomy (30%), ENT Physiology & Vestibular Mechanics (25%), ENT Pathology (25%), and Pharmacology & Surgical Principles (20%).

Time Limit

Written papers (3 hours per paper)

Passing Score

Overall 50% with written subminimum

Exam / Certification Fees

R12 950

Exam sponsor website

Reported exam pass rate: ~45-55%. Evaluated by the CMSA Senate and College of Otorhinolaryngologists examination board. This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

30%

Head & Neck Anatomy, Temporal Bone & Larynx

Surgical and developmental anatomy of the temporal bone, facial nerve path, cranial nerves V, VII, IX, X, XI, XII, skull base, deep neck spaces, larynx, pharynx, and sinonasal anatomy.

25%

ENT Physiology, Audiology & Vestibular Mechanics

Cochlear micromechanics, auditory evoked potentials (ABR/OAE), acoustic reflex, vestibular organ fluid dynamics, VOR, caloric and vHIT testing, nasal mucociliary clearance, deglutition, and phonation.

25%

Head, Neck & ENT Pathology

Histopathology of cholesteatoma, otosclerosis, vestibular schwannoma, sinonasal inverted papilloma, salivary gland neoplasms, laryngeal carcinoma, thyroid pathology, and granulomatous head & neck diseases.

20%

Otorhinolaryngology Pharmacology & Principles of Surgery

Ototoxic drug mechanisms, topical otic/nasal therapeutics, local anesthetics & epinephrine, antimicrobials in head & neck infections, wound healing, laser physics, flap circulation, and neck dissection principles.

Preparing for the FC ORL(SA) Part I Exam

What You Need to Know

Passing score: Overall 50% with written subminimum
Assessment: Written papers examining basic medical sciences relevant to otorhinolaryngology: Head & Neck Anatomy (30%), ENT Physiology & Vestibular Mechanics (25%), ENT Pathology (25%), and Pharmacology & Surgical Principles (20%).
Time limit: Written papers (3 hours per paper)
Exam / certification fees: R12 950 Official sources

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FC ORL(SA) Part I: Suggested Study Strategy

1Master the three-dimensional intra-temporal surgical anatomy of the facial nerve and petrous apex.

2Review the electrophysiological origins of Auditory Brainstem Response (ABR) waves I through V.

3Memorize the key histological features distinguishing pleomorphic adenoma, adenoid cystic carcinoma, and mucoepidermoid carcinoma.

4Understand the cellular mechanisms of aminoglycoside and platinum-induced ototoxicity.

Frequently Asked Questions

What is the format of the CMSA FC ORL(SA) Part I examination?

The examination consists of written papers testing basic medical sciences (anatomy, physiology, pathology, and pharmacology) applied to Otorhinolaryngology-Head and Neck Surgery.

What is the pass mark for the FC ORL(SA) Part I?

Candidates must achieve an overall aggregate score of at least 50% with a subminimum pass mark required across individual written papers.

What subjects are included in the FC ORL(SA) Part I blueprint?

The blueprint covers four core domains: Head & Neck Anatomy (including Temporal Bone & Laryngeal Anatomy), ENT Physiology & Audiology/Vestibular Mechanics, Head & Neck Pathology, and ENT Pharmacology & Surgical Principles.

Free Practice Questions for FC ORL(SA) Part I

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