SG 6d Equilibrium

Equilibrium is the awareness and monitoring of the position of the (limbs, trunk, head)

• T

• F

The receptors for equilibrium are located in the ... which respond to angular movements ... which responds to linear movements

• Semicircular canals/ Vestibule

• Vestibule/ Semicircular canals

The ... canals respond to the up and down movement as in doing a somersault. The ... canals respond to ‘spinning’ motions, The ... canals respond to ‘cartwheel’ rotations

• anterior/ lateral/ posterior

• posterior/ anterior/ lateral

• lateral/ posterior/ anterior

The receptor of the semicircular canal is located in the ... which contain ... cells

• cristi ampullaris/ hair

• ampullae/ neuron

• cristi ampullaris/ neuron

• ampullae/ hair

The hair cells contain (graded/equal length) stereocilia that are embedded in the cupula which is displaced by the (endolymph/perilymph) that’s contained in the semicircular canals

• graded/ perilymph

• graded/ endolymph

• equal length/ perilymph

• equal length/ endolymph

At rest or constant motion, the hair cells (release/fail to release) neurotransmitters. As a result (no action potentials/basal firing of action potentials) is generated in the vestibular nerve

• release/ basal firing of AP

• fail to release/ no AP

• release/ no AP

• fail to release/ basal firing of AP

A movement that causes the stereocilia to bend towards the kinocilium will (open/close) (VG/LG/MG) channels. In turn, the hair cells release (more/less) neurotransmitters which generate (more/less) action potentials in the vestibular Nerve (part of CN VIII)

• open/ MG/ more/ more

• close/ MG/ less/ less

• open/ LG/ more/ less

• close/ VG/ less/ more

Tags

NGSS.HS-LS1-3

A movement that causes the stereocilia to bend away from kinocilium will (open/close) (VG/LG/MG) channels. In turn, the hair cells release (more/less) neurotransmitters which generate (more/less) action potentials in the vestibular nerve

• close/ MG/ less/ less

• open/ MG/ more/ more

• open/ VG/ more/ less

• close/ LG/ less/ more

Tags

NGSS.MS-LS1-3

The ... responds to vertical movements such as jumping or riding in an elevator, The ... responds to horizontal movements such as driving in a car or walking across the room

• saccule/ utricle

• utricle/ saccule

The hair cells contain (graded/equal length) stereocilia that are embedded in the gelatinous material which is overlaid by crystals called ... The weight of the crystals cause the stereocilia to bend in a direction that is ... of different of movement during movement

• graded/ otoliths/ opposite

• equal length/ cupula/ same

• graded/ cupula/ same

• equal length/ otoliths/ opposite