Tag: drug, tobacco and alcohol consumption

Questions Related to drug, tobacco and alcohol consumption

The weaker magnetic fields of the brain are studied with the help of 

biology transport in mammals regulation of the activity of heart drug, tobacco and alcohol consumption community health and hygiene

  1. Electro cardiography

  2. SQUID

  3. Prosthesis

  4. Electro encephalography

Show answer
Correct Option: B
Explanation:

A SQUID (superconducting quantum interference device) is a very sensitive magnetometer used to measure extremely subtle magnetic fields, based on superconducting loops containing Josephson junctions. SQUIDs are sensitive enough to measure fields as low as 5 aT (51018 T) within a few days of averaged measurements. Magnetoencephalography (MEG), uses measurements from an array of SQUIDs to make inferences about neural activity inside brains. Because SQUIDs can operate at acquisition rates much higher than the highest temporal frequency of interest in the signals emitted by the brain (kHz), MEG achieves good temporal resolution.

A drug called reserpine was discovered by

biology transport in mammals regulation of the activity of heart drug, tobacco and alcohol consumption community health and hygiene

  1. Jal Vakil

  2. Paul Ehrlich

  3. Hansen

  4. Alexander Wood

Show answer
Correct Option: A
Explanation:

Reserpine is an indole alkaloid, antipsychotic and antihypertensive drug that has been used for the control of high blood pressure.
Rustom Jal Vakil was the first to pioneer the use of resperine to control hypertension.
Thus, the correct answer is option (A), 'Jal Vakil'.

Stethoscope was invented by

biology transport in mammals regulation of the activity of heart drug, tobacco and alcohol consumption community health and hygiene

  1. René Laennec

  2. Wilhelm Roentgen

  3. Edward Jenner

  4. Joseph Lister

Show answer
Correct Option: A
Explanation:
Stethoscope was invented by Rene Laennec. It is a medical device which is mainly used to hear the sound of heart, intestine, blood flow of the arteries and veins.
Wilhelm Roentgen discovered x rays.
Edward Jenner developed the first vaccine for smallpox.
Lister successfully introduced carbolic acid to sterilize surgical instruments and wounds.
So, the correct answer is option A.

Frequency of $\beta$-waves is

biology transport in mammals regulation of the activity of heart drug, tobacco and alcohol consumption community health and hygiene

  1. 4-7 Hz

  2. 8-13 Hz

  3. 14-30 Hz

  4. 1-3 Hz

Show answer
Correct Option: C
Explanation:

$\beta$-wave or $\eta$ rhythm is the term used to designate the frequency range of human brain activity between 12.5 and 30 Hz.
Thus, the correct answer is option C.

An ECG shows the functioning of the 

biology transport in mammals regulation of the activity of heart drug, tobacco and alcohol consumption community health and hygiene

  1. Brain

  2. Heart

  3. Lungs

  4. kidneys

Show answer
Correct Option: B
Explanation:

A permanent record of the electric events occurring during a cardiac cycle made on a graph paper in a wave form called electrocardiogram. The electric events include depolarization and repolarization of the auricles and ventricles bringing about their contraction and relaxation. The instrument used to record hearts electric event is named electrocardiograph.