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What do the receptor cells for hearing static equilibruim and dynamic equilibrium have in common?
The three have this in common: - Balance - Stimulation of hair cells that generate impulse carried by the vestibular branch of cranial VIII.
What does the phrase density of receptor cells mean?
Density of receptor cells are the amount of receptor cells in a specific area of the body. This could be in the lips.
What are the non specific drug effect?
Hase not specific receptor
Compare two ways that the binding of a signal molecule to a receptor protein causes a change in activity the receiving cell?
1. Insulin binding to insulin receptor tyrosine kinase on hepatocyte: increased glucose uptake, increased glycogen and fatty acid production and decreased catabolism in general (decreased gluconeogenesis, lipolysis, and proteolysis). Insulin binding causes receptor dimerization and self-phosphorylation. Phosphorylated receptor recruits scaffold proteins and downstream target proteins and phosphorylate them. Phosphorylated target proteins serve as kinases and activate or deactivate other proteins by phosphorylation, effecting appropriate effects. 2. Erythropoietin binding to EPO cytokine receptor on Common Myeloid Progenitor cell: eventual differentiation into erythrocyte. Cytokine receptor induces the Jak/STAT pathway resulting in altered gene expression by transcription factors, drastically changing the function and morphology of the cell.
Which is more sensitive over skin temperature or touch and why?
Touch ... the number of receptor cells.
What is the receptor for equilibrium?
The Macula is the receptor for static equilibrium.
What are the receptor organs for equilibrium?
macula for static equilibrium and cristae for dynamic equilibrium. All are found in the inner ear.
What are the receptor cells involved in dynamic equilibrium?
cristae
Which part of a reflex arc monitors body conditions?
Sensory Receptor
What is the sensory receptor for static equilibrium?
The sensory receptor for static equilibrium is the vestibule located in the inner ear. The vestibule contains two structures called the utricle and saccule, which detect changes in head position and orientation to help maintain balance.
which of the following are responsible for recognizing a change to the system?
receptor cells - apex
Which of the following drugs is an example of a selective 5-HT receptor agonist?
midril
What is the cupula of the ear?
which receptor is involved in the sense of rotational equilibrium
What is receptor internalisation?
Receptor internalization is the process by which cell surface expressed receptors are monoubiquitinated following ligand-induced activation, and subsequently taken up into the endocytic vesicles to the lysosome. The receptor will either be degraded or brought back to cell membrane were it is again able to interact with its ligands. Receptor internalization serves as a mechanism to downregulate receptor signaling upon agonistic ligand stimulation.
Where do receptor molecules end up after receptor-mediated endocytosis?
Its NOT 'on the inside surface of the cell membrane' Probably ' on the inside surface of the vesicle'
What is the equilibrium receptor found within ampullae of semicircular canals?
The equilibrium receptor found within the ampullae of the semicircular canals is called the crista ampullaris. It is responsible for detecting rotational movements of the head and helps in maintaining balance and orientation in space. Movement of the endolymph within the semicircular canals triggers the hair cells in the crista ampullaris to send signals to the brain regarding the direction and speed of head movement.
Equilibrium receptor found within ampullae of semicircular canals?
The semicircular canal is found in the inner ear and is responsible for individuals being able to keep their balance. There is a sort of bulbous structure at the end of the semicircular canal called the ampulla which is where the receptors of equilibrium are located.
