Question

drow a diagram showing section view of brain .lable its three major parts and describe their functions.

Answer 1

HYPOTHALAMUS :
- It produces 'inhibitory hormones' and 'releasing hormones' 
 - It regulates the secretion of hormones from pituitary gland
- It is also responsible for certain metabolic processes.
- It also controls body temperature, hunger,thirst,sleep,circadian rhythm, fatigue and attachment behaviour.

MEDULLA :
-The medulla oblongata is located in the brain stem, anterior to (in front of) the cerebellum. - This is a cone-shaped, neuronal (nerve cell) mass in the hindbrain, which controls a number of autonomic (involuntary) functions.
-The medulla oblongata is located in the brain stem, anterior to (in front of) the cerebellum. -This is a cone-shaped, neuronal (nerve cell) mass in the hindbrain, which controls a number of autonomic (involuntary) functions.
-This section of the brain helps transfer messages to the spinal cord and the thalamus, which is in the brain, from the body. -The main function of the thalamus is to process information to and from the spinal cord and the cerebellum.  

CEREBRUM :
The cerebrum is divided into four regions called lobes that control senses, thoughts, and movements. The four lobes are the occipital, temporal, frontal, and parietal lobes. Although each lobe has a different task to perform, they all must work together.

The occipital lobe, found in the back of your cerebrum, plays a role in processing visual information. It can be related to oculus, the Latin word for eye.

There are two temporal lobes, one in each hemisphere - close to where your ears are. It primarily functions in auditory processing. However, it may also be involved in emotion, learning, and pronunciation/learning a new language. If you hear a loud tempo or beat, you may cover your ears, thus blocking the sounds from getting to your temporal lobe.

The frontal lobe allows you to solve a complex task, undergo voluntary movement of your body parts, form complete sentences, and is responsible for your personality traits. Think about the last time you had a difficult exam, what was your first reaction? You probably put your elbow on the table and your hand on your forehead, precisely where your frontal lobe is located.

The parietal lobe functions in general sensation and feeling. If you stand too close to a campfire, you probably take a few steps backwards to avoid the excessive heat. Building a snowman without gloves may also bring you discomfort, but your parietal lobe helps to communicate this information with the rest of your brain. Although all sensations are not bad, it is important to point out how they help us avoid potentially harmful situations. The parietal lobe is found in between the frontal and occipital lobe.

Answer 2

The three major parts of the brain are Cerebrum, Cerebellum and the Brain stem.  

Explanation:

• The largest part of brain is called the Cerebrum. It has two rooms in it known as right and left hemispheres. Cerebrum has the control of main functions like sensing, vision, hearing and movement control .
• Below the Cerebrum is the Cerebellum located. This plays the main role of coordinating  muscle movements, maintain posture, and balance.
• The bridge between the cerebrum and cerebellum is called as the Brainstem. It acts as a relay center connecting them to the spinal cord. This does the functions like breathing, heart rate and body temperature.

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