Explanation

Explanation

• Myopia (Nearsightedness) is an eye defect in which near objects are clear but distant objects appear blurred.
• It occurs when the image forms in front of the retina instead of on it.
• It is corrected by using a concave (diverging) lens.
• The concave lens helps to shift the image back onto the retina.

Last verified on 01-04-2026

Explanation

• The normal resting heart rate of an adult human is about 70 beats per minute.
• It can vary depending on age, fitness, and health condition.

Additional information:

• Normal adult: 60–100 beats/min
• Athletes: 40–60 beats/min
• Children: 70–120 beats/min
• Infants: 100–160 beats/min

Last verified on 31-03-2026

Explanation

• Dermatology: Study of skin.
• It involves the study of health conditions that may affect the skin, fat hair, nails, and membranes.

Additional information:

• Agrostology: Study of Grasses
• Hematology: Study of blood
• Agronomy: Study of soil management and crop production
• Odontology: Study of teeth
• Arthrology: Study of joints
• Nephrology: Study of kidneys

Last verified on 01-04-2026

Explanation

• The average adult has a blood volume of about 5 liters (5-6 litres), though this can range from 4.5 to 5.5 liters.
• Male: About 5.5 liters.
• Female: About 4.5 liters.
• Proportion: Blood makes up roughly 7% of a person's total body weight. 

Last verified on 30-03-2026

Explanation

• The olfactory bulb is a structure in the brain responsible for processing smells detected by the nose.
• It receives signals from olfactory receptor neurons and sends them to other brain regions for interpretation.
• Location: underside of the frontal lobe of the brain

Last verified on 19-03-2026

Explanation

• The ear canal (external auditory canal) transmits sound waves from the outer ear to the eardrum in the middle ear.
• It acts as a conduit, amplifying sound slightly and protecting the inner structures.
• Ear Canal length: ~2.5 cm in adults

Last verified on 19-03-2026

Explanation

• The iris is the colored part of the eye (blue, brown, green, etc.).
• It controls the size of the pupil, regulating how much light enters the eye.

Additional information:

• Pupil – black opening for light
• Cornea – transparent front layer
• Lens – focuses light
• Retina – receives image

Last verified on 19-03-2026

Explanation

• A sphygmomanometer is a medical device used to measure blood pressure.
• It consists of an inflatable cuff and a pressure gauge.

Last verified on 17-03-2026

Explanation

• Bile, produced by the liver and stored in the gallbladder.
• It breaks down fats into smaller particles, making it easier for enzymes to digest them.
• This process is called emulsification.

Last verified on 17-03-2026