Explain static and dynamic equilibrium and their interrelationships

What will be an ideal response?


Static equilibrium is regulated by the maculae of the vestibule. The maculae report on the position of the head with respect to the pull of gravity when the body is at rest. Each macula is a patch of receptor cells embedded in the otolithic membrane. The otolithic membrane contains otoliths which roll in response to changes in the pull of gravity. This movement causes the hair cells of the membrane to bend, sending impulses along the vestibular nerve to the cerebellum, relating information regarding the position of the head in space. Dynamic equilibrium is regulated by the semicircular canals. The crista ampullaris of the membranous semicircular canal consists of a tuft of hair cells and their gelatinous cap called the cupula. Movement of the head causes the cupula to move in the opposite direction, stimulating the hair cells, which then transmit impulses up the vestibular nerve to the cerebellum. Static and dynamic equilibrium work together to provide information to the cerebellum to help control balance.

Anatomy & Physiology

You might also like to view...

The connection of the anterior portion of the tongue to the underlying epithelium is the

A) uvula. B) faux. C) lingual frenulum. D) labial frenulum. E) glossal septum.

Anatomy & Physiology

In the diagram, which region includes B cells, plasma cells and macrophages?

a) B b) C c) D d) E e) None of these choices

Anatomy & Physiology

A lever is acted on at two different points by two different forces which are called the

a) fulcrum and resistance. b) leverage and load. c) lever and resistance. d) effort and load. e) lever and effort.

Anatomy & Physiology

Which do not belong to the respiratory zone of the respiratory system?

A.  Respiratory bronchioles B.  Alveolar ducts C.  Terminal bronchioles D.  Pulmonary alveoli E.  Alveolar sacs

Anatomy & Physiology