Insert Table Chart Text Shape Media Comment 49. What is endolymph? Where is it f
ID: 3483794 • Letter: I
Question
Insert Table Chart Text Shape Media Comment 49. What is endolymph? Where is it found? What is special about endolymph? What happens to the membrane potential when K channels open in endolymph? 50. Lateral inhibition: Mechanism and purpose. 51. Receptive Field vs. Sensory Acuity. What is the relationship between the two? 52. Muscarinic vs. nicotinic Ach (acetylcholine) receptors. How does each work? 53. How can intracranial pressure be increased? What is the consequence? 54. What are movement disorders and what brain part is affected? 55. What is epilepsy/ seizure disorder? What types of drugs treat it? Digestive/ Metabolic/ Endocrine 56. Know the order of the organs through which food passes along the gastrointestinal tract. 57. Know where the 3 nutrients are digested and what are the major molecules that help digest them. Nutrient Carbohydrate Protein Lipid Organ(s) where digested Enzymes/ Digestive componentsExplanation / Answer
1 Answer-
Endolymph- Also called Scarpa's fluid those are after Antonio Scarpathe fluid. It contained in the membranous labyrinth of the inner ear.
It is special because it involve in hearing and body balance.
The Potassium is an main component of this unique extracellular flui. which is secreted from the stria vascularis. The high potassium content carried as the de-polarizing electric current in the hair cells. This is known as the mechano-electric transduction (MET) current.
If the potassium rest potencial it may cause due to machanical stimulation. It remain stimulated and leads to stimulation of hypothalamus.
50 Answer-
lateral inhibition is the capacity of an excited neuron to reduce the activity of its neighbors. Lateral inhibition disables the spreading of action potentials from excited neurons to neighboring neurons in the lateral direction.
It work by controlling the more excitation or excitotoxicity.
51 Answer-
The receptive field of an individual sensory neuron is the particular region of the sensory space the region can be a hair in the cochlea or a piece of skin, retina, tongue or other part of an animal's body.
Sensory acuity It is important to be aware of Feedback/information that indicates the extent to which you are on or off target in achieving your outcomes.
These are related by realating to the sensory informations.
52. Answer-
Muscarinic vs nicotinic receptors-
Muscarinic- Ach receptors with subtypes of M1 M2 M3 M4 and M5. however most working are M1 M2 and M3
Nicotinic - Also Subtypes Nm and Nn.
Muscarinic Found in smooth muscles, heart, brochi, eye, blood vesseles etc.
Nicotinic- found in Neuromuscular junction and skeletal muscles.
The both work by binding the ache which tranmit the impulse from pre to post ganglia.