Biology

Nervous System Physiology

1,959 Questions

Enhance your knowledge of human neurobiology through questions on nervous system physiology. The topics cover brain anatomy, sensory modalities, and the neural mechanisms controlling speech and language. This resource is ideal for students preparing for medical and general science exams.

Brain anatomy and regionsNeural mechanismsLanguage processingSensory functions

Nervous System Physiology Questions

Multiple choice zoology diseases and immunity body defense system drug-target interaction pharmaceutical products and drug action

Gastric secretions are under the control of 

  1. Cerebrum

  2. Hypothalamus

  3. Thalamus

  4. Medulla oblongata
Reveal answer Fill a bubble to check yourself
A,B,D Correct answer
Explanation

Gastric secretion starts with the stomach responds to the mere sight, smell, taste, or thought of food which process starts in the cerebrum. These sensory and mental inputs converge on the hypothalamus, which relays signals to the medulla oblongata. Vagus nerve fibres from the medulla stimulate the parasympathetic nervous system of the stomach which, in turn, stimulates gastric secretion.

So the answers are Cerebrum, Hypothalamus, and Medulla oblongata.

Multiple choice biology control and co-ordination in plants and animals voluntary and involuntary movements impulse and its transmission coordination in human beings- nervous control

Muscle A and muscle B are the same size, but muscle A is capable of much finer control than muscle B. Which B. Which one of the following is likely to be true of muscle A?

  1. It contains fewer motor units than muscle B.

  2. It has larger sarcomeres than muscle B.

  3. IT is controlled by more neurons than muscle B.

  4. It is controlled by ewer neurons than muscle B.
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice biology control and co-ordination in plants and animals voluntary and involuntary movements impulse and its transmission coordination in human beings- nervous control

Waves emitted in brain during deep sleep is

  1. Alpha

  2. Beta

  3. Delta

  4. Gamma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A delta wave is a high amplitude brain wave. Delta waves are usually associated with the deep stage 3 of NREM sleep, also known as slow-wave sleep (SWS) and aid in characterizing the depth of sleep.

Multiple choice biology structural organization of animals structural organization of rabbit structural organization of leech phylum annelida

Structure connected with vision is Rabbit is

  1. Corpus callosum

  2. Corpora quadrigemina

  3. Corpus albicans

  4. Hippocampus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the rabbit brain, the corpora quadrigemina consists of four lobes (colliculi) that serve as reflex centers for visual and auditory stimuli. The superior colliculi are specifically associated with visual processing.

Multiple choice zoology skeleton and movements features of a muscle muscle features muscle contraction and its effects

All or none law is not applicable for

  1. Single skeletal muscle fibre

  2. Whole skeletal muscle

  3. Single smooth muscle fibre

  4. Whole cardiac muscle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The all-or-none law is the principle that the strength by which a nerve or muscle fibre responds to a stimulus is independent of the strength of the stimulus. If that stimulus exceeds the threshold potential, the nerve or muscle fibre will give a complete response; otherwise, there is no response.
  • Hence All or none law is not applicable for whole skeletal muscle.
  • So, the correct answer is 'Whole skeletal muscle'.
Multiple choice zoology skeleton and movements features of a muscle muscle features muscle contraction and its effects

All or none law is associated with

  1. Muscle fibre

  2. Neuron

  3. Uriniferous tubule

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • The all-or-none law is a principle that states that the strength of a response of a nerve cell(neuron) or muscle fibre is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fibre will fire.
  • Hence All or none law is associated with muscle fibre and neuron.
  • So, the correct answer is 'Both A and B'.
Multiple choice zoology skeleton and movements features of a muscle muscle features muscle contraction and its effects

All or none law is not applicable for

  1. Whole skeletal muscle

  2. Single skeletal muscle

  3. Whole cardiac muscle

  4. Single smooth muscle fibre
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All or none law is the principle that states that the strength by which a muscle fiber responds to a stimulus is independent of the strength of the stimulus. If that stimulus exceeds the threshold potential, the muscle fiber will give a complete response, otherwise, there is no response. 

Each muscle fiber is innervated by each nerve terminal or a nerve terminal innervates 2 or 3 muscle fibers. So their response is not related to others. The all or none law is seen is single fibers of skeletal muscles and smooth muscles but not the whole fiber. Whereas the cardiac muscle innervation is continuous and the whole muscle act as a single unit. So the whole cardiac muscle is applicable to all or none law. 
So the correct option is A.

Multiple choice civics individual and society achieving equality moving towards equality diversity and discrimination

Recognition of emotion tends to be most closely associated with the _________.

  1. Temporal lobe

  2. Right hemisphere

  3. Left hemisphere

  4. Frontal lobe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The two halves of the brain are believed to have different roles in emotional processing. The right hemisphere is dominant in the perception of facial expression, body posture, and prosody. The right hemisphere is important for processing primary emotions such as fear, anger, happiness, sadness etc. Recognition of emotion tends to be most closely associated with the right hemisphere.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

The limbic system is formed by

  1. The hypothalamus ,epithalamus ,amygdala and hippocampus

  2. Hypothalamus ,amygdala and hippocampus

  3. Corpora quadrigemina and hippocampus

  4. Midbrain and hindbrain
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

the limbic system is made up of the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus.  All the components of the limbic system work together to regulate some of the brain's most important processes.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Which of the following brain structure is not considered to be part of limbic system?

  1. Amygdala

  2. Hippocampus

  3. Corpora quadrigemina

  4. Septal nuclei
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The limbic system is the portion of the brain that deals with three key functions: emotions, memories, and arousal (or stimulation).
  • The components of the limbic system include Amygdala, Hippocampus, Septal nuclei, thalamus, hypothalamus, basal ganglia.
  • The posterior surface of the adult midbrain is characterized by four elevations collectively called the corpora quadrigemina. It is not a part of the limbic system.
  • Hence the brain structure is not considered to be part of the limbic is Corpora quadrigemina.
  • So, the correct answer is 'Corpora quadrigemina'.
Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

Which the following statement is incorrect?

  1. Osmoconformers are able to maintain osmotic concentration of their cells by either physiological or behavioral means

  2. Most vertebrates, except the birds and mammals are unable to theregulate

  3. Success of mammals is mainly due to their ability to thermoregulate and live comfortably whether they are in Antarctica or in Sahara desert.

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Osmocoformers are the organisms that change the osmotic concentration of their body with the change in ambient conditions. Their body fluids are in osmotic balance with the environment For many marine invertebrates the osmolarity and ionic concentrations of their body fluids are similar to those of the sea water in which they live. 

Multiple choice biology animal tissue types of neuron nervous tissue neural tissues

Which is not a neuroglial cell?

  1. Oligodendrocyte

  2. Microglia

  3. Astrocyte

  4. Chondrocyte
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The neuroglia or glial cells are defined as supportive cells of the central nervous and peripheral nervous system that primarily support, protect and nourish the neurons. There are basically four types of neuroglial cells:-

Astrocytes, Oligodendrocytes, Microglia and Ependyma.While Chondrocytes are cells that make up the dense connective tissue that is present in the cartilage matrix.
So, the correct answer is 'Chondrocyte'.

Multiple choice biology aids to health immunization, treatment and antibiotics antibodies and antitoxin prevention and treatment of disease

Which of the following systems in man is affected by the bite of cobra?

  1. Digestive

  2. Nervous

  3. Excretory

  4. Circulatory
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The venom of cobra consists primarily of neurotoxins (affects the nervous system) with several other compounds. They are capable of delivering a fatal bite. These block the transmission of the nerve impulse by the sensory and motor neurons. So, the correct answer is option B.