Competitive Exams: Medical Science MCQs (Practice-Test 55 of 135)

  1. Which one of the following statements regarding the spleen is NOT correct

    1. It is highly vascular

    2. Its long axis lies along the 10th rib

    3. It is normally palpable in adults below the rib margin

    4. It is related to both greater and lesser sacs of the peritoneum

  2. Consider the following structures in the ovary:

    1. Graafian follicle

    2. Corpus luteum

    3. Atretic follicle

    The correct sequence of formation of these structures is:

    1. 3, 1, 2

    2. 3, 2, 1

    3. 1, 3, 2

    4. 2, 3, 1

  3. Match List I (components of adrenal gland) with List II (Secretory products) and select the correct answer:

    List-I List-II
    1. Zona glomerulosa

    2. Zona reticularis

    3. Zona fasciculate

    4. Chromaffin cells

    1. Glucocorticoids

    2. Noradrenaline

    3. Aldosterone

    4. Sex hormones

    • A
    • B
    • C
    • D
      • 2
      • 3
      • 1
      • 4
      • 3
      • 4
      • 2
      • 1
      • 1
      • 3
      • 4
      • 2
      • 3
      • 4
      • 1
      • 2
  4. Anterior nucleus of thalamus receives fibres from

    1. superior colliculus

    2. nucleus of medial geniculate body

    3. red nucleus

    4. nucleus of mamillary body

  5. In motor homunculus of cerebral cortex, which one of the following regions is represented most?

    1. Hand and fingers

    2. Hip

    3. Trunk

    4. Face

  6. Consider the following branches of the vertebral artery:

    1. Pontine branches

    2. Posterior cerebral artery

    3. Superior cerebellar artery

    4. Anterior spinal artery

    The correct sequence of the origin of these branches from below upwards is

    1. 3, 2, 4, 1

    2. 4, 3, 1, 2

    3. 4, 1, 3, 2

    4. 2, 1, 4, 3

  7. Injury to the facial nerve at the level of the stylomastoid foramen results in

    1. Loss of taste from the anterior twothird of the tongue

    2. Deafness

    3. Loss of sensations on the face

    4. Paralysis of buccinator muslce

  8. Which one of the following descending tracts of the spinal cord becomes myelinated last?

    1. Tectospinal

    2. Corticospinal

    3. Olivospinal

    4. Reticulospinal

  9. Iris is constricted by stimulation of

    1. Ophthalmic nerve

    2. Cervical sympathetic chain

    3. Oculomotor nerve

    4. Trochlear nerve

  10. When a patient voluntarily deivates the eyes to the left, the cortical efferent pathway comes from

    1. Left frontal lobe

    2. Right frontal lobe

    3. Left occipital lobe

    4. Right occipital lobe

  11. Which of the following is NOT a histological feature of a bronchiole?

    1. Simple columnar ciliated epithelium

    2. Plates of hyaline cartilage

    3. Goblet cells

    4. Spirally disposed smooth muscle fibres

  12. Consider the following statements about sertoli cells in the seminiferous tubule:

    1. they extend from the basement membrane to the lumen

    2. They undergo division

    3. they have phagocytic activity

    4. They have endocrine function

    Which of the above statements are correct?

    1. 1, 2 and 3

    2. 2 and 4

    3. 1 and 3

    4. 1, 3 and 4

  13. Which one of the following is NOT a feature of Osteoclast cells?

    1. the cytoplasm is rich in rough endoplasmic reticulum

    2. Cells are multinucleated

    3. They are bone removing cells

    4. Their size is 100 μm or more

  14. Consider the following statements regarding parafollicular cells of the thyroid gland:

    1. They are activated by thyroid stimulating hormone.

    2. They are suppressed by hypocalcaemia.

    3. They control release of Calcitonin.

    4. They control release of triiodothyronine.

  15. Which one of the following statemtns is NOT correct regarding the development of the body of a vertebra?

    1. It develops from mesenchymal cells

    2. Centrum is formed by cells of two adjacent sclerotomes

    3. There is no contribution from the neural arch

    4. Notochord degenerates and disappears within the body of a vertebra