Human Physiology
This test is based on certain tpics from human physiology , so it will help the students to revise the topics thoroughly.
Questions
A boy met with an accident and lost his auditory and visual responses. Which part of the brain must have been affected?
- Midbrain
- Pons
- Medulla
- Tactum
- Brainstem
Which of the following statements regarding the human brain is INCORRECT?
- Abnormalities of blood flow in the carotid arteries causes problems in the subcortical structures.
- Abnormalities of blood flow in the vertebral arteries cause problems in the brainstem.
- Formation of a local thrombus is one of the commonest causes of blood flow problems in the brain.
- At the base of the brain lies the circle of Willis.
- The carotid arteries form the posterior circulation to the brain.
Which one of the following factors does not put a woman at increased risk of obstetric complications?
- Both extremes of maternal age.
- One previous Caesarean section.
- A history of subfertility, with use of fertility drugs or assisted conception.
- Family history of diabetes in a second-degree relative.
- Overdue pregnancy.
RA is a disease of joint destruction; which of the following scenarios is most pertinent to the immunopathogenesis?
- Macrophage activation by rheumatoid factor.
- The triggering factor is Campylobacter jejuni.
- CD4 T cells produce TNF-α cytokine that activates macrophages.
- The acute phase response that accompanies active RA disease suggests that persistent infection is a factor.
- MHC association with HLA B27 is important in Europeans and RA is restricted to this group of individuals.
Which of the following is the common cause of the nephrotic syndrome in children?
- IgA nephropathy
- Henoch-Schönlein nephritis
- Acute post streptococcal glomerulonephriti
- Membranoproliferative glomerulonephritis
- Minimal-change nephropathy
What sensory pathway carries light touch and proprioception?
- Medial lemniscus
- Lateral lemniscus
- Spinothalamic trac
- Chorda tympani
- Corticospinal tract
Which one of the following is normally an avascular structure?
- The iris
- The conjunctiva
- The pinna
- The retina
- The cornea
After examination, the doctor confirmed to Amit that he is suffering from uveitis. Which one of the following is not associated with uveitis?
- Pauci-articular arthritis in children
- Sarcoidosis
- Ankylosing spondylitis
- Ulcerative colitis
- Graves’ disease
Which of the following is NOT expressed by the main populations of intraepithelial lymphocytes?
- CD 19
- CD 103
- γδ form T-cell receptor [TCR]
- αβ form of the T-cell receptor [TCR]
- CD8
Cryoglobulins are immune complexes that precipitate at low temperatures. Which one of the following is the correct statement about cryoglobulins?
- Samples for cryoglobulin detection must be stored on ice before they reach the laboratory.
- Type III cryoglobulins are associated with hepatitis C infection.
- Type I cryoglobulins are monoclonal proteins typically of IgA or IgD class.
- Cryoglobulins are always monoclonal immunoglobulins.
- Cryoglobulins precipitates from the blood serum in extremely hot and arid conditions.
Which of the following statements relating to infections in the skin is true?
- Skin granulomas are rare in Mycobacterium leprae infections.
- Human papilloma virus (HPV) is associated with a reactive, non-infective skin rash.
- The measles rash is infective.
- Recurrent herpes labialis is caused by reactivation of persistent herpes simplex infection often provoked by exposure to UV light.
- Atopic individuals have an increased tendency to varicella zoster virus (VZV).
Which of the following is NOT a retinal cell?
- A midget cell
- A parasol cell
- A small-field bistratified cell
- The Photosensitive Cells
- The optic tectum
In which site are M cells found in the intestine?
- Interacting with intraepithelial lymphocytes
- In the lamina propria
- In the follicles of the Peyer's patches
- In the dome area of Peyer's patches
- Within the parvocellular layers of the lateral geniculate nucleus of the thalamus