How are tissues protected class 10?

How are the tissues protected?

The principle function of epithelial tissues are covering and lining of free surface. The cells of the body’s surface form the outer layer of skin. Inside the body, epithelial cells form the lining of the mouth and alimentary canal and protect these organs.

How are these tissues protected class 10 notes?

The space between the meninges is filled with a fluid called cerebrospinal fluid. This fluid protects the brain against shocks and mechanical injuries. This fluid also maintains a constant pressure in and around the brain.

How are brain tissues protected class 10?

The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. … Like the brain, the spinal cord is covered by the meninges and cushioned by cerebrospinal fluid.

What is the important of tissue?

A group of tissue forms an organ. The tissues are essential because it represents a level of organisation in living organisms. Tissues also function by transporting nutrients and connects bones and other body parts.

How does the nerve tissue cause action?

When a nerve impulse reaches the muscle the muscle fibre must move. The muscle cells will move by changing their shape so that they shorten. Muscle cells have special proteins that change both their shape and their arrangement in the cell in response to nervous electrical impulses.

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What protects the delicate tissue of the brain?

The cranium protects the brain from injury. Together, the cranium and bones that protect the face are called the skull. Between the skull and brain is the meninges, which consist of three layers of tissue that cover and protect the brain and spinal cord.

How is human brain protected?

Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by a set of ring-shaped bones called vertebrae. They’re both cushioned by layers of membranes called meninges and a special fluid called cerebrospinal fluid.

How many brains does a human head have?

The cerebrum, the largest part of the human brain, consists of two cerebral hemispheres.

Human brain
Human brain and skull
Upper lobes of the cerebral hemispheres: frontal lobes (pink), parietal lobes (green), occipital lobes (blue)
Precursor Neural tube

What is tissue and its importance?

1)It protects the organs from injury or shocks. 2)It also connects many body parts such as ligament connects bones to another bones. 3)It also provides nutrition to our body such as blood also transport nutrients to many parts of the body. 4)It fights against many infectious pathogens.

What is tissue and its function?

A tissue is a group of cells, in close proximity, organized to perform one or more specific functions. There are four basic tissue types defined by their morphology and function: epithelial tissue, connective tissue, muscle tissue, and nervous tissue.