Tag: nervous system

Quizzes (7) Questions (99)

Questions Related to nervous system

Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

Which nerve fibres supply the stomach and intestine?

  1. Sympathetic nerve fibres

  2. Parasympathetic nerve fibres

  3. Parasympathetic and sympathetic nerve fibres

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The stomach and intestines receive dual innervation from both the sympathetic and parasympathetic nervous systems to regulate motility and secretion.

Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

A polypeptide that regulates hunger is

  1. Endorphin

  2. Encephalin

  3. Insulin

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Endomorphins are the chemical substance which is present in the neurons. It helps in the perception of pain, reactions to stress, and cardiovascular, respiratory and digestive functions. They are produced within the body so they are known as endogenous. They specifically work by binding to opoid receptors which are mainly found in nervous system and regulates the motor neurons and autonomic nervous system. The regulation of sympathetic and parasympathetic chain helps to control hunger.
So, the correct answer is option A.
Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

Intercellular communication in multicellular organisms occur through

  1. Digestive system

  2. Nervous system

  3. Both-nervous and endocrine systems

  4. Respiratory system only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Multicellular organisms coordinate their activities using both the nervous system (fast, electrical) and the endocrine system (slower, chemical).

Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

One function of parasympathetic nervous system is

  1. Contraction of rectum

  2. Inhibits salivation

  3. Acceleration of heart beat

  4. Constriction of pupil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The parasympathetic nervous system, or PSNS, is a part of the nervous system. The nervous system sends signals to and from different parts of the body via nerves. The PSNS is responsible for all the activities that take place when the body is at rest. During a period of flight and fight, the pupils dilate to allow us to see more clearly and make faster decisions. During rest and digest, the PSNS causes the pupils to constrict.

So, the correct option is ' Constriction of pupil '.

Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

Who discovered autonomic nervous system and its components?

  1. Langley

  2. Sherington

  3. Pavlov

  4. Mc Lennan
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

John Newport Langley is widely recognized for his pioneering work in the late 19th century, where he coined the term autonomic nervous system and defined its sympathetic and parasympathetic divisions.

Multiple choice zoology nervous system nervous systems involved in emotions types of nervous system components of nervous system

Sympathetic nerves in mammals develop from

  1. Sacral region

  2. Cervical region

  3. Thoracico-lumbar region

  4. 3rd, 7th, 9th and 10th cranial nerves
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sympathetic nerves emerge from the central nervous system specifically from the thoracic and lumbar regions of the spinal cord, which is why it is called the thoracico-lumbar system.