Free Human Body and Health MCQs with Answers

121. Where is the location of intermediate neurons?

• A. Kidney
• B. Brain
• C. Spleen
• D. Liver

Explanation: Intermediate neurons, also called interneurons, are found in the central nervous system, especially the brain and spinal cord. Among the given organs, the brain is the appropriate choice.

122. What fear do people with haphephobia have?

• A. fear of dogs
• B. fear of helicopters
• C. fear of touch
• D. fear of houses

Explanation: Haphephobia is an excessive fear of being touched or of touching others. The term is formed from haphe, meaning touch, rather than from words for animals or buildings.

123. Blood sugar is measured in:

• A. mmHg
• B. mg/deciliter
• C. PPM
• D. Gram/Liter

Explanation: Blood glucose is commonly reported in milligrams per decilitre, written mg/dL, particularly in Pakistan and the United States. Millimetres of mercury, or mmHg, are used for pressure such as blood pressure.

124. The Blood Grouping Was Discovered by__________ ?

• A. Robert Oppenheimer
• B. Karl Landsteiner
• C. Dr Hollerith
• D. None of them

Explanation: Karl Landsteiner discovered the ABO blood-group system in 1900 by identifying differences among human blood samples. Oppenheimer was a physicist, while Hollerith developed an early data-processing machine.

125. The optic nerve which is found in the human brain is also called ___________?

• A. Second cranial nerve
• B. Mini nervous
• C. Carnival nerve
• D. Sustained nerve

Explanation: The optic nerve is cranial nerve II, or the second cranial nerve. It carries visual signals from the retina to the brain, so the other listed names are not anatomical terms.

126. What does A1C measure in the blood test?

• A. total cholestrol
• B. blood sugar level for three months
• C. fructosamine
• D. muscle strength

Explanation: A1C measures the proportion of haemoglobin attached to glucose, giving an estimate of average blood sugar over roughly the previous two to three months. It does not measure cholesterol or muscle strength.

127. Which of the following animal has blue blood?

• A. Snail
• B. Octopus
• C. Spider
• D. All of above

Explanation: Snails, octopuses and spiders can have bluish blood because their oxygen-carrying pigment is copper-based haemocyanin rather than iron-based haemoglobin. Therefore all three listed animals fit.

128. _______ is called folic acid.

• A. Vitamin B1
• B. Vitamin B6
• C. Vitamin B9
• D. Vitamin B12

Explanation: Folic acid is the water-soluble B vitamin known as vitamin B9, needed especially for DNA synthesis and red-blood-cell formation. B12 is another important blood-related vitamin but is not folic acid.

129. What is the name of the chart with letters in multiple rows, used for an eye test ?

• A. Snellen Chart
• B. Maslow's pyramid
• C. Gantt Chart
• D. Peptide Test

Explanation: The Snellen chart tests visual acuity using rows of letters that gradually decrease in size. The other charts are used for planning, hierarchy or unrelated purposes.

130. Which of the following is a rich source of Vitamin B-12?

• A. Cashew nut
• B. Milk
• C. Apple
• D. Watermelon

Explanation: Milk is a useful dietary source of vitamin B12, which is naturally concentrated mainly in animal-derived foods. Fruits and cashew nuts do not normally provide a significant natural amount of B12.