Biology

Nervous System Physiology

1,858 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 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 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 biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Which of the following helps human beings in producing sounds?

  1. The eardrum

  2. The auditory nerve

  3. The optical cortex

  4. The vocal cords
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The larynx is known as voice box or sound producing organ. A pair of membranous folds called vocal cords, stretch across the laryngeal cavity. In normal condition, the vocal cords lie apart so that the glottis remains widely open to allow free passage of respiratory air. For sound production, vocal cords come close together, they vibrate when air rushes out through glottis and produce voice.

Thus, the correct answer is option D. 

Multiple choice zoology control and coordination in living organisms pineal gland pituitary gland and pineal gland pineal gland and thymus

Pineal body originates from

  1. Dorsal part of diencephalon

  2. Ventral part of diencephalon

  3. Ventral part of cerebellum

  4. Dorsal part of cerebellum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The diencephalon is the region of the embryonic vertebrate neural tube that gives rise to posterior forebrain structures including the thalamus, hypothalamus, posterior portion of the pituitary gland, and pineal gland. The pineal gland arises as a dorsal outgrowth of the caudal portion of the diencephalon. In the adult animal, it lies in the midline of the roof of the third ventricle. 

Multiple choice zoology endocrine system and chemical co-ordination pineal gland pituitary gland and pineal gland pineal gland and thymus

Pineal body develops from

  1. Dorsal part of diencephalon

  2. Ventral part of diencephalon

  3. Ventral side of cerebellum

  4. Lateral side of cerebrum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Pineal gland is a small, rounded and reddish brown gland present at the dorsal side of forebrain. This gland secretes melatonin and serotonin hormones. It develops from the roof of a section of brain called diencephalon which is located behind third cerebral ventricle in the middle part of the brain i.e. on dorsal side of forebrain.
So, the correct answer is 'Dorsal part of diencephalon'.
Multiple choice biology sensory organs of humans - sense organs ear : the organ of hearing and equilibrium ear and its function ear

You are riding a bicycle and take a sudden turn around a sharp corner. The organs involved in the maintenance of balance is

  1. Medulla oblongata

  2. Semicircular canals

  3. Cerebrum

  4. Optic chiasma
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Medulla oblongata is the part of hind brain and controls consciousness and arousal (the reticular formation) and its three vital reflex centres control the blood vessels diameter, heartbeat and breathing rate. This makes option A incorrect as medulla oblongata is not associated with sense of balance. The three semicircular canals lie at right angle to each other in vestibular apparatus of inner ear and are filled with endolymph; this arrangement senses the change in movement (acceleration or deceleration) or position. The mechanism includes movement of cupula in response to movement of endolymph within the canal causing the bending of cilia to generate the nerve impulse. This makes option B correct. Cerebrum is the part of fore brain and serves to receive sensory inputs, to bring about integration before commanding voluntary motor responses, to coordinate the activities of other part of brain, and to carry out higher thought processes for learning, memory, language and speech. This makes option C incorrect. Optic chiasma serves to send the data from right and left half of each retina to right and left visual area of cerebral cortex respectively
So, the correct answer is 'Semicircular canals'
Multiple choice biology sensory organs of humans - sense organs ear : the organ of hearing and equilibrium ear and its function ear

You are riding a bicycle and take a sudden turn around a sharp corner. The organ involved in the maintenance of balance is

  1. Medulla oblongata

  2. Semicircular canals

  3. Cerebrum

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

Semicircular canals are three tiny, fluid-filled tubes in our inner ear that helps us to keep our balance. When our head moves around, the liquid inside the semicircular canals sloshes around and moves the tiny hairs that line each canal.
Angular acceleration (e.g., rapid turning) of a person in any direction produces currents of fluid (endolymph) along the corresponding canal, which are detected by the fine projections from Sensory cells and communicated to the brain via the auditory nerve.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

The brain is responsible for

  1. Thinking

  2. Regulating the heart beat

  3. Balancing the body

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The cerebellum is the convoluted subdivision of brain stem and is associated with coordination of muscular movement, muscle tone and balance. Medulla oblongata controls consciousness and arousal (the reticular formation) and its cardiovascular reflex centre controls heartbeat. The cerebrum is the largest and uppermost division of brain. It is the centre for higher thought processes required for learning, memory, language and speech. The correct answer is D.

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Brain is the main .......... centre of the body.

  1. Peripheral

  2. Nervous

  3. Chemical

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

The brain serves as the center of the nervous system in all vertebrates and most invertebrate animals. Only a few invertebrates, such as sponges,  jellyfish, adult sea squirts and starfish do not have a brain.In such organisms, a diffuse neural tissue is present. It is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste and smell. The brain is the most complex organ in a vertebrate's body. 

Multiple choice biology life processes: control and coordination structure and function of brain human brain nervous and endocrine system in humans

Human brain is covered by

  1. Two meninges

  2. Three meninges

  3. Five meninges

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

Meninges are the membranes that envelop the brain and spinal cord of the central nervous system. 

In mammals, the meninges consist of three layers - dura mater, arachnoid mater and pia mater. The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system.