Anatomy MCQs — Spine, Neck, Head & Thorax OmpathStudy

Continued from $1. Anatomy Quiz - Spine, Neck, and Head Questions with Answers Question 6 Which of the following muscles is the chief extensor of the spine? a. Erector spinae b. Latissimus dorsi c. Multifidus d. Splenius capitis e. None of the above Answer: a. Erector spinae Question 7 Which of the following is TRUE about innervation of muscles acting on the spine? a. Latissimus dorsi - Long thoracic nerve b. Longissimus coli - posterior rami of spinal nerves c. Rhomboids - Thoracodorsal nerve d. All of the above e. None of the above Answer: b. Longissimus coli - posterior rami of spinal nerves Question 8 Which of the following statements is INCORRECT regarding blood supply to the spine? a. It is segmental with contributions from regional major vessels b. In the neck there is contribution from Ascending cervical arteries c. Posterior intercostal arteries contribute mainly in the thoracic region d. Subcostal arteries contribute in the lumbar region e. None of the above Answer: e. None of the above (All statements are correct) Question 9 Regarding venous drainage of the spine, which of the following is TRUE? a. The spine is drained by a plexus of veins whose valves regulate direction of flow of blood b. There is no communication between venous blood in the vertebral canal and the veins on the outside of the vertebral column c. There is potential communication of blood from the pelvic region all the way to the intracranial region through the vertebral venous plexus d. All of the above are true e. None of the above Answer: c. There is potential communication of blood from the pelvic region all the way to the intracranial region through the vertebral venous plexus Question 10 Which of the following regarding the lymphatic drainage of the spine is TRUE? a. Lymph from the skin and subcutaneous tissues follows the veins and drains into the deep cervical nodes, paraaortic nodes among other regional deep nodes b. All the lymph drains to the deep cervical nodes c. Lymph from the skin below the iliac crests around the spine drains to the superficial inguinal nodes d. All the lymphatics drain to the sacral and mediastinal nodes e. None of the above Answer: a. Lymph from the skin and subcutaneous tissues follows the veins and drains into the deep cervical nodes, paraaortic nodes among other regional deep nodes Question 11 Which of the following statements is TRUE about the spinal cord in adults? a. It terminates at the junction of L4 and L5 below which CSF can be safely sampled b. It occupies the cranial 4/5 of the vertebral canal c. It is covered by 2 layers of meninges unlike the brain which is covered by 3 meningeal layers d. It is attached to the coccyx by filum terminale e. None of the above Answer: d. It is attached to the coccyx by filum terminale Question 12 Which of the following statements is FALSE regarding the spinal cord? a. It has 2 anterior medial fissures and 1 posterior median sulcus b. It has 2 anterior vertebral arteries and 1 posterior vertebral artery c. Sensory impulses enter the spinal cord at the anterior horns while motor nerves exit posteriorly d. In total there are 44 spinal nerves each exiting at a vertebral level e. All of the above Answer: e. All of the above (All statements are false) Question 13 Which of following is TRUE regarding blood supply to the spinal cord? a. Anterior source of arterial blood supplies the anterior 1/3 of the cord b. The paired posterior vertebral arteries supply the posterior 2/3 of the cord c. The artery of Adamkiewicz arises from a branch of the vertebral artery on the left d. The artery of Adamkiewicz provides arterial supply to 2/3 of the distal cord e. None of the above Answer: d. The artery of Adamkiewicz provides arterial supply to 2/3 of the distal cord Question 14 Which of the following is TRUE about SCIWORA? a. Can usually be detected radiologically about 65% of the time b. Mostly occurs in adults as compared to children c. Can be caused by bending or stretching of the cord d. Results in multiple fractures e. All of the above Answer: c. Can be caused by bending or stretching of the cord Question 15 Choose the correct statement among the ones below: a. Hyoid bone is found at the level of the 5th cervical vertebra b. The cervical spine has 6 vertebrae c. The hyoid bone is free, mobile and does not articulate with any other bone d. The junction between the greater horn and body of the hyoid is normally ossified at birth e. All of the above are true Answer: c. The hyoid bone is free, mobile and does not articulate with any other bone Question 16 Which of the following is TRUE regarding superficial fascia of the neck? a. It contains platysma muscle b. Contains superficial lymph nodes c. Contains small blood vessels and cutaneous nerves d. Beneath it are the superficial veins of the neck e. All of the above Answer: e. All of the above Question 17 Which of the following statements is TRUE regarding deep fascia of the neck? a. It is in 2 layers in most areas b. T