Tag: the human brain

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Questions Related to the human brain

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Which of the following parts of brain constitute the brain stem?

  1. Midbrain and hindbrain

  2. Hindbrain and forebrain

  3. Forebrain and midbrain

  4. forebrain only
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Brainstem connects the cerebrum to the spinal cord. It consists of the midbrain (mesencephelon), medulla oblongata and the pons (parts of the hind brain). It relays information between the cerebrum and the spinal cord.

So, the correct answer is 'Midbrain and hindbrain'

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Involuntary action in the body is controlled by

  1. Medulla in fore brain

  2. Medulla in mid brain

  3. Medulla in hind brain

  4. Medulla in spinal cord
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The medulla oblongata is a cone shaped neuronal mass in the hindbrain which connects higher level of both brain and spinal cord. It serves in several functions of the autonomous nervous system (ANS) such as involuntary actions like heart rate, breathing, swallowing, sneezing and digestion by the sympathetic and parasympathetic response. 

So, the correct answer is option C.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Cerebrum is also known as cerebellum.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cerebrum is a part of forebrain and makes up about two third of the human brain, and consists of two cerebral hemispheres joined by a curved thick band of nerve fibres called corpus callosum whereas cerebellum is a part of hindbrain and is only 1/8th the size of the cerebrum and lies under occipital lobe, dorsal to brain stem.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

The brain stem is made up of

  1. Midbrain, pons, cerebellum

  2. Midbrain, pons, medulla oblongata

  3. Diencephalon, medulla oblongata, cerebellum

  4. Cerebellum, cerebrum, medulla oblongata.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The brain stem controls the flow of messages between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate etc... The brainstem is divided into three sections in humans: the midbrain (mesencephalon) which governs rudimentary vision and hearing, pons varolii (metencephalon) which links the cerebellum to the cerebrum and the medulla oblongata (myelencephalon) which controls breathing, swallowing, blood pressure, and heart rate.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Read the following five statements (i) to (v) regarding left cerebral hemisphere and select the option that correctly states the true (T) and false (F) statements.
(i) It receives most modalities of sensory information from the right side of the body.
(ii) It is usually larger than the right cerebral hemisphere.
(iii) It is the dominant cerebral hemisphere in most individuals.
(iv) It is connected to the right cerebral hemisphere by the corpus callosum.
(v) It contains the main areas for the understanding and production of speech in most individuals.

  1. (i) - T, (ii) - T, (iii) - F, (iv) - F, (v) - F

  2. (i) - F, (ii) - T, (iii) - T, (iv) - F, (v) - T

  3. (i) - T, (ii) - F, (iii) - T, (iv) - T, (v) - T

  4. (i) - F, (ii) - F, (iii) - T, (iv) - T, (v) - T
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The left hemisphere receives sensory input from the right side, is typically dominant for language (speech production and understanding), and connects to the right hemisphere via the corpus callosum. It is not generally larger than the right hemisphere; in fact, the two are roughly symmetrical in size.

Multiple choice biology nervous system of man human nervous system the structure of brain the human brain

Which of the following among these structures is/are found in diencephalon?

  1. Pons

  2. Basal ganglia

  3. Corpora quadrigemina

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

The diencephalon consists primarily of the thalamus, hypothalamus, and epithalamus. Pons is part of the brainstem, basal ganglia are subcortical nuclei in the cerebrum, and corpora quadrigemina are in the midbrain.