There are two types of equilibrium: static (gravitational) equilibrium, which involves
the movement of the head with respect to gravity
and dynamic (rotational) equilibrium, which involves acceleration of the head in rotation, horizontal, and vertical movements.
What membrane is involved in static equilibrium?
The utricle and saccule
are responsible for the maintenance of static equilibrium. The hair cells in the macula of the utricle and saccule are oriented in different directions. The specific pattern of stimulation of these hair cells keep the brain informed about the position of the head.
Which of the following is involved in static equilibrium?
Terms in this set (13)
The central cavity of the bony labyrinth
Which of the following is an example of static equilibrium quizlet?
An example of static equilibrium occurs
when nodding one’s head “yes
.”
Which of the following provides sense of static equilibrium?
Static equilibrium it is detected and provided by
mechanoreceptors in the vestibule of the inner ear, the utricle and saccule
. They all have receptors for static equilibrium. Dynamic equilibrium is provided by the semicircular canals-three ring-like extensions from the vestibule.
What is an example of static equilibrium?
1: In a torque balance, a horizontal beam is supported at a fulcrum (indicated by S) and masses are attached to both sides of the fulcrum. The system is in static equilibrium
when the beam does not rotate
. It is balanced when the beam remains level.
How do you get static equilibrium?
- The sum of the forces on it in each direction is zero.
- The sum of the torques on it in each direction is zero.
- Its linear momentum is zero (i.e. it’s not moving).
Is equilibrium a dynamic?
A reversible process is said to be in dynamic equilibrium when
the forward and reverse processes occur at the same rate
, resulting in no observable change in the system. Once dynamic equilibrium is established, the concentrations or partial pressures of all species involved in the process remain constant.
What is the difference between static and dynamic equilibrium?
Static equilibrium is a state where bodies are at rest; dynamic equilibrium is a state where bodies are moving at a constant velocity (rectilinear motion). In both cases the sum of the forces acting on them is
zero
.
What are the equilibrium receptors?
Receptors for two sensory modalities (hearing and equilibrium) are housed in the ear. …
The semicircular canals, the utricle, and the saccule of the inner ear
are involved with equilibrium. Both hearing and equilibrium rely on a very specialized type of receptor called a hair cell.
Which best describes are the conditions for static equilibrium?
Conditions for equilibrium require that
the sum of all external forces acting on the body is zero
(first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium.
Which of the following is the organ of dynamic equilibrium quizlet?
The receptors for dynamic equilibrium are found in the
crista ampullaris of the semicircular canals
. These receptors respond to changes in angular motion. When motion begins, the endolymph fluid lags behind and the cupula is bent, which excites the hair cells.
Which of the following structures in the inner ear is essential for maintaining static equilibrium quizlet?
The vestibular system
is the sensory apparatus of the inner ear that helps the body maintain its postural equilibrium.
What is static equilibrium in anatomy?
The ear maintains both static and dynamic equilibrium. Static equilibrium is
maintenance of the proper head position in response to changes in linear motion such as walking
. Dynamic equilibrium is the maintenance of proper head position in response to rotational movement such as turning.
What is an example of equilibrium?
An example of equilibrium is in economics
when supply and demand are equal
. An example of equilibrium is when you are calm and steady. An example of equilibrium is when hot air and cold air are entering the room at the same time so that the overall temperature of the room does not change at all.
How does the sense of equilibrium work?
The vestibular system (inner ear balance mechanism) works with the visual system (eyes and the muscles and parts of the brain that work together to let us ‘see’)
to stop objects blurring when the head moves
. It also helps us maintain awareness of positioning when, for example, walking, running or riding in a vehicle.
