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  • Question 1 - An explorative laparotomy is done on a 23 year old following a gunshot...

    Correct

    • An explorative laparotomy is done on a 23 year old following a gunshot abdominal injury through the right iliac fossa. It is found that the ileocolic artery is severed and the bullet had perforated the caecum. From which branch does the ileocolic artery originate?

      Your Answer: Superior mesenteric artery

      Explanation:

      Ileocolic artery branches off from the superior mesenteric artery. It then divides to give a superior and inferior branch.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      528
      Seconds
  • Question 2 - Which foramen contains the vertebral artery? ...

    Correct

    • Which foramen contains the vertebral artery?

      Your Answer: Foramen magnum

      Explanation:

      The foramen magnum is found in the most inferior part of the posterior cranial fossa. It is traversed by vital structures including the medulla oblongata. Its contents include the following: medulla oblongata, meninges, spinal root of the accessory nerve, vertebral arteries, anterior and posterior spinal arteries, tectorial membrane and alar ligaments.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      18.4
      Seconds
  • Question 3 - A young girl injured her arm following a fall down the steps On...

    Correct

    • A young girl injured her arm following a fall down the steps On examination, it was found that her left proximal radioulnar joint had dislocated and the annular ligament was stretched. This will make which movement extremely painful?

      Your Answer: Supination

      Explanation:

      Supination is the rotation of the forearm so that the palm of the hand faces anteriorly. This is performed by the biceps brachii and supinator of the extensor muscles of the thumb. The opposite action of moving the palm from an anterior-facing position to a posterior-facing position is called pronation. Pronation is performed by the pronator teres and pronator quadratus.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      87.6
      Seconds
  • Question 4 - Enlargement of the spleen as seen in Gaucher's disease pushes the spleen downward...

    Correct

    • Enlargement of the spleen as seen in Gaucher's disease pushes the spleen downward and medially. What structure limits the straight-vertical-downward movement?

      Your Answer: Left colic flexure

      Explanation:

      The left colic flexure (also known as the splenic flexure), is the point where the colon takes a sharp turn downwards. It is the point where the transverse colon ends and the descending colon begins. It is located immediately inferior to the spleen so an enlarged spleen must move medially to avoid this colic flexure.
      The left suprarenal gland is retroperitoneal.
      The Ligament of Treitz suspends the fourth part of the duodenum from the posterior abdominal wall.
      The stomach, pancreas and liver lie medial to the spleen and thus would not prevent a vertical downward movement.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      19.2
      Seconds
  • Question 5 - Which of the following veins is prostate cancer most likely to metastasize through?...

    Incorrect

    • Which of the following veins is prostate cancer most likely to metastasize through?

      Your Answer: Cephalic vein

      Correct Answer: Internal vertebral venous plexus

      Explanation:

      The internal vertebral veins are the most likely route of metastasis as they are valveless. They serve an important clinical role as they are the route of free travel for cancerous cells to other body structures. The other veins on the list have valves and would be the least likely routes for metastasis.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      38.2
      Seconds
  • Question 6 - Which of the following structure forms the floor of the posterior triangle of...

    Incorrect

    • Which of the following structure forms the floor of the posterior triangle of the neck:

      Your Answer: Retropharyngeal fascia

      Correct Answer: Prevertebral fascia

      Explanation:

      The posterior triangle (or lateral cervical region) is a region of the neck which has the following boundaries:
      Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone
      Anterior: Posterior border of the sternocleidomastoid muscle
      Posterior: Anterior border of the trapezius
      Base: Middle one third of the clavicle
      Roof: Investing layer of the deep cervical fascia
      Floor: The anterolateral portion of prevertebral fascia

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      14.2
      Seconds
  • Question 7 - A 40-year old man sustained a deep laceration to the sole of his...

    Incorrect

    • A 40-year old man sustained a deep laceration to the sole of his left foot. It was found that the belly of extensor digitorum muscle was lacerated and the lateral tarsal artery was severed. The lateral tarsal artery is a branch of the:

      Your Answer: Popliteal artery

      Correct Answer: Dorsalis pedis artery

      Explanation:

      The lateral tarsal artery arises from the dorsalis pedis, as the vessel crosses the navicular bone

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      213.9
      Seconds
  • Question 8 - A 7-month-old abandoned baby with congenital non-communicating hydrocephalus is hosted by a clinic...

    Incorrect

    • A 7-month-old abandoned baby with congenital non-communicating hydrocephalus is hosted by a clinic at its new-born hostel. A CT scan of the baby's brain reveals what might be a blockage of the ventricular system between the third and the fourth ventricles. Which of the following is the most likely blocked structure?

      Your Answer: Foramen of Luschka

      Correct Answer: Cerebral aqueduct

      Explanation:

      The drainage of cerebral spinal fluid from the third ventricle to the fourth ventricle is carried out by the cerebral aqueduct. The cerebral aqueduct is the narrowest passageway in the entire ventricular system and thus forms the most common site of blockage of flow of cerebrospinal fluid. The interventricular foramen allows passage of CSF to the third ventricle. The foramen of Luschka and Magendie are located on the fourth ventricle and allow passage of CSF to the subarachnoid space from the ventricular system. The pontine cistern is a space located on the ventral aspect of the pons. The cisterna magna is an opening on the subarachnoid space between the pia matter and the arachnoid.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      26.1
      Seconds
  • Question 9 - A tumour growing in the posterior mediastinum is found in a 40-year-old man...

    Incorrect

    • A tumour growing in the posterior mediastinum is found in a 40-year-old man who presented to the out patient clinic with chest pain. Such a tumour is likely to compress the following structure:

      Your Answer: Trachea

      Correct Answer: Oesophagus

      Explanation:

      The boundaries of the posterior mediastinum are: the superiorly through the sternal angle and T4/5, inferiorly, the diaphragm, anteriorly, by the middle mediastinal structures and posteriorly by the spinal cord. Structures in the posterior mediastinum include the descending thoracic aorta, the azygos system, oesophagus, thoracic duct and lymph nodes. The great vessels and structures at the root of the lung are part of the middle mediastinum. The oesophagus is the only structure in the posterior mediastinum among the choices.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      255.3
      Seconds
  • Question 10 - What is expected from complete transection of the inferior gluteal nerve when it...

    Correct

    • What is expected from complete transection of the inferior gluteal nerve when it emerges from the greater sciatic foramen?

      Your Answer: Extension of the thigh would be the action most affected

      Explanation:

      As the inferior gluteal nerve emerges from the greater sciatic foramen below the piriformis muscle, it divides into branches and enters the gluteus maximus muscle which extends the femur and bends the thigh in line with the body.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      103.2
      Seconds
  • Question 11 - Which of the following arteries, that runs on the superior aspect of the...

    Incorrect

    • Which of the following arteries, that runs on the superior aspect of the first part of the duodenum, forms the lower boundary of the epiploic foramen (also known as the foramen of Winslow)?

      Your Answer: Left gastric

      Correct Answer: Hepatic

      Explanation:

      The epiploic foramen is an important anatomical opening that allows for the communication between the greater peritoneal sac and the lesser peritoneal sac. Its boundaries are formed; superiorly by the caudate lobe of the liver, anteriorly by the hepatoduodenal ligament (containing the components of the portal triad), inferiorly by the first part of the duodenum and posteriorly by the peritoneum covering the inferior vena cava. The superior aspect of the first part of the duodenum, which forms the inferior boundary of the foramen of Winslow, forms the course of the hepatic artery before it ascends to the porta hepatis where it divides into its right and left branches.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      11.6
      Seconds
  • Question 12 - What is the innervation of the laryngeal mucosa inferior to the true vocal...

    Incorrect

    • What is the innervation of the laryngeal mucosa inferior to the true vocal cord?

      Your Answer: Facial nerve

      Correct Answer: Recurrent laryngeal nerve

      Explanation:

      Motor innervation to all other muscles of the larynx and sensory innervation to the subglottis is by the recurrent laryngeal nerve.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      14.8
      Seconds
  • Question 13 - A 45 year-old female presents with a drooping eyelid. During examination, the same...

    Incorrect

    • A 45 year-old female presents with a drooping eyelid. During examination, the same pupil of the patient is found to be dilated. Which nerve could be involve in this case?

      Your Answer: Frontal nerve

      Correct Answer: Oculomotor nerve

      Explanation:

      The oculomotor nerve controls most of the eye muscles. It also controls the constriction of the pupils and thickening of the lens of the eye. This can be tested in two main ways. By moving a finger toward a person’s face to induce accommodation, their pupils should constrict or shining a light into one eye should result in equal constriction of the other eye. The neurons in the optic nerve decussate in the optic chiasm with some crossing to the contralateral optic nerve tract. This is the basis of the swinging-flashlight test. Loss of accommodation and continued pupillary dilation can indicate the presence of a lesion of the oculomotor nerve.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      20.2
      Seconds
  • Question 14 - The vagus nerve passes through which of the following foramen? ...

    Incorrect

    • The vagus nerve passes through which of the following foramen?

      Your Answer: Foramen spinosum

      Correct Answer: Jugular foramen

      Explanation:

      The jugular foramen is a large foramen in the base of the skull. It is located behind the carotid canal and is formed in front by the petrous portion of the temporal bone, and behind by the occipital bone. Cranial nerves IX, X, and XI and the internal jugular vein pass through the jugular foramen.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      26.6
      Seconds
  • Question 15 - Which of the following nerves has its terminal branch at the supratrochlear nerve?...

    Incorrect

    • Which of the following nerves has its terminal branch at the supratrochlear nerve?

      Your Answer: Lacrimal

      Correct Answer: Frontal

      Explanation:

      The supratrochlear nerve is a branch of the frontal nerve which comes from the ophthalmic division of cranial nerve V (trigeminal nerve). It passes above the superior oblique nerve and its descending filaments join the infratrochlear branch of the nasociliary nerve. From the orbit, it exits between the supraorbital foramen and the pulley of the superior oblique. It then curves up to the forehead beneath the corrugator supercilli and frontalis muscle. It further divides into branches that supply sensory innervation to the bridge of the nose, medial part of the upper eyelid and medial forehead.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      15
      Seconds
  • Question 16 - An ultrasound report of a 35-year old female patient revealed that she had...

    Correct

    • An ultrasound report of a 35-year old female patient revealed that she had cancer of the pancreas and presented with subsequent severe obstructive jaundice. In which part of this was woman's pancreas was the tumour most likely located?

      Your Answer: Head

      Explanation:

      The pancreas is divided into five parts; the head, body, neck, tail, and the uncinate process. Of the five parts, tumours located at the head of the pancreas in most instances cause obstruction of the common bile duct more often than tumours in the other parts of the pancreas. This is because the common bile duct passes through the head of the pancreas from the gallbladder and the liver (it is formed where the cystic and the hepatic bile duct join) to empty bile into the duodenum. This biliary obstruction leads to accumulation of bile in the liver and a consequent bilirubinaemia (raised levels of blood bilirubin). This results in jaundice. The pancreas is not divided into lobes.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      33.5
      Seconds
  • Question 17 - Where do the seminal vesicles lie? ...

    Incorrect

    • Where do the seminal vesicles lie?

      Your Answer: Base of the bladder and prostate

      Correct Answer: Base of the bladder and rectum

      Explanation:

      The seminal vesicles are two lobulated membranous pouches situated between the fundus of the bladder and rectum and act as a reservoir for the semen and secrete a fluid that is added to the seminal fluid. Each sac is pyramidal in shape but they all vary in size not only in different individuals but also in the same individuals. The anterior surface is in contact with the fundus of the bladder, extending from near the termination of the ureter to the base of the prostate. Each vesicle consist of single tube, which gives off several irregular caecal diverticula. These separate coils and the diverticula are connected by fibrous tissue.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      12.5
      Seconds
  • Question 18 - The third branch of the maxillary artery lies in which fossa? ...

    Incorrect

    • The third branch of the maxillary artery lies in which fossa?

      Your Answer: Infratemporal fossa

      Correct Answer: Pterygopalatine fossa

      Explanation:

      The maxillary artery supplies deep structures of the face. It branches from the external carotid artery just deep to the neck of the mandible. It is divided into three portions:
      – The first or mandibular portion (or bony portion) passes horizontally forward, between the neck of the mandible and the sphenomandibular ligament.
      – The second or pterygoid portion (or muscular portion) runs obliquely forward and upward under cover of the ramus of the mandible, on the surface of the lateral pterygoid muscle; it then passes between the two heads of origin of this muscle and enters the fossa.
      – The third portion lies in the pterygopalatine fossa in relation to the pterygopalatine ganglion. This is considered the terminal branch of the maxillary artery. Branches from the third portion includes: the sphenopalatine artery, descending palatine artery, infraorbital artery, posterior superior alveolar artery, artery of pterygoid canal, pharyngeal artery, middle superior alveolar artery and anterior superior alveolar artery.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      55.6
      Seconds
  • Question 19 - Prostatectomy carries a risk of loss of penile erection due to injury to...

    Incorrect

    • Prostatectomy carries a risk of loss of penile erection due to injury to the prostatic plexus responsible for an erection. From which nerves do these fibres originate?

      Your Answer: Femoral branch of genitofemoral

      Correct Answer: Pelvic splanchnics

      Explanation:

      Erection is a function of the parasympathetic nerves. Of the nerves listed, only the pelvic splanchnic nerves have parasympathetic fibres that innervate the smooth muscles and glands of the pelvic viscera.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      12.3
      Seconds
  • Question 20 - The muscle which has an antagonistic action to the serratus anterior muscle and...

    Incorrect

    • The muscle which has an antagonistic action to the serratus anterior muscle and is the primary protractor of the scapula is the?

      Your Answer:

      Correct Answer: Rhomboid major

      Explanation:

      The rhomboid major arises from the second, third, fourth and fifth thoracic vertebrae. It is inserted into a narrow tendinous arch attached to the root of the spine of the scapula and the inferior angle. By its insertion in the inferior angle of the scapula, it acts on this angle and produces a slight rotation of the scapula on the side of the chest. It also retracts the scapula by working with the trapezius muscle.

    • This question is part of the following fields:

      • Anatomy
      • Basic Sciences
      0
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Anatomy (12/19) 63%
Basic Sciences (12/19) 63%
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