The main function of a fibrous joint is to

Biology

1 answer:

Galina-37 [17]3 years ago

8 0

Answer:

In a fibrous joint the bones which are adjacent to each other are connected by fibrous connective tissues, mainly collagen, with out forming any cavity of joint.

Explanation:

The fibrous joints and not movable and cover important structures like brain being covered by skull bones which are articulated by fibrous joints namely sutures.
Long bones too are stabilized by this type fibrous joints as is formed between radius and ulnar bone of forearm.
Another important fibrous joint is in between the root of the teeth and gum sockets in maxillary region. Here fibrous joint binds the teeth firmly so that continuous motion and pressure during eating may not loosen it.

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Following repolarization, the neuron may become slightly hyperpolarized before it re-establishes its resting membrane potential.

RoseWind [281]

<h2>Membrane potential </h2>

Explanation:

Membrane potential represents charge difference across the membrane, all biological cells are negative inside (cytoplasm) and positive outside (due to difference in ionic distribution)
In a typical neuron cell membrane potential of cytoplasm is negative at rest (when no stimulus is applied) hence called resting membrane potential
Resting membrane potential of excitable cells is established by Na+ and K+pump
Repolarization starts with the efflux of K+ by the opening of voltage gated K+ channels
Voltage gated K+ channels starts to open when voltage gated Na+ channels becomes inactive
Hyperpolarization occurs due to excessive efflux of K+ by voltage gated K+ channels
Additional efflux of K+ occurs due to slow inactivation of voltage gated K+ channels