Test: Nervous System- 1 - Class 5 MCQ

-The cerebrum is responsible for learning, speech and memory.
-The cerebrum controls functions related to thinking, learning, and remembering, as well as the ability to speak.
-Damage to these areas can lead to difficulties in speech and memory loss.

The cerebellum is the second largest part of the brain, followed by the cerebrum, which is the largest part. 

The largest organ of our body is the Skin. Here's why:

- The skin is the largest organ in the human body, covering an average area of about 20 square feet.
- It serves as a protective barrier against pathogens, regulates body temperature, and helps with the sensation of touch.
- The skin consists of multiple layers, including the epidermis, dermis, and subcutaneous tissue.
- Its functions are vital for overall health and well-being, making it a crucial organ system.

-The average human brain weighs around 1.4 kg, which is approximately 3 pounds.
-This weight can vary slightly among individuals due to factors such as age, sex, and overall body size.
-The brain is composed of about 75% water, which contributes to its weight.
-Despite its relatively small size, the brain is a highly complex organ responsible for various functions, including thinking, memory, and coordination.

The cerebrum is the part of the brain that controls our sense organs and helps us think and learn. It processes what we see, hear, and feel.

The spinal cord is responsible for carrying messages between the brain and the rest of the body through nerves. It also controls the actions that do not involve the brain.

-The optic nerve is like a cable that connects our eyes to the brain.
-It carries the pictures we see to the brain so we can understand and know what we are looking at.
-Imagine it like a bridge that helps our eyes talk to our brain, so we can see and understand the world around us.

Sensory nerves carry messages from the sense organs to the brain or the spinal cord.

Nerves are thread-like structures extending from the brain and spinal cord to all body parts.

The medulla oblongata controls involuntary actions like the lungs' movement in breathing and the heart.