Stereocilia - Samenvattingen, Notities en Examens

Volledige samenvatting van lessenreeks over evenwicht gedoceerd door Prof. Desloovere. Hoort bij het onderdeel ziekteleer.

CBNS 124 EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+/ Transduction in the Pacinian Corpulse (2) - -Requires stretch-activated Na+ channels and produces depolarization A _ tactile stimulus will _ firing rate of action potentials in sensory nerve fiber s - - stronger , increase the labeled line code refers to - -segregation of anatomical structures in processing touch, temp, and pain signals. In addition to surround (lateral) inhibition, which of the following increases contrast enhan...

BIOL 1014: Exam 2 Questions and answers Histology - ANSWER-microscopic study of tissues biopsy - ANSWER-the removal of living tissue from the body for diagnostic examination autoposy - ANSWER-examination of organs of a dead body to determine cause of death or to study changes caused by a disease Endoderm - ANSWER-the inner germ layer that develops into the lining of the digestive and respiratory systems Mesoderm - ANSWER-middle germ layer; develops into muscles, and much of the circulat...

What are the three ways in which the head can rotate in? ~~> Yaw: z axis (saying no) Pitch: y axis (saying yes) Roll: x axis What are the semicircular canals filled with? ~~> endolymph What is the vestibular labyrinth composed of? what are the functions of each? ~~> - utricle and saccule: detect head tilt and linear acceleration - semicircular canals: detect head rotation What are the two otholith organs? ~~> saccule and utricle macula ~~> receptor epithelium,...

Vestibular Disorders O'Sullivan Review questions with correct answers 2024 Within the Semicircular Canals, they are filled with endolymph. This fluid responds to what type of movement of the head? - answer-angular rotation Describe how excitation of the SCCs would occur: - answer-stereocilia would deflect towards the kinocilia within the ampulla List the otolith organs: - answer-utricle, saccule Describe how/when excitation of the otolith organs occur: - answer-saccule: vertical linear ...

Define adaptation - Answer Reduction of sensory responsiveness when stimulation is unchanging. It prevents us from having to respond continuously to unimportant information Explain the adaptation process for the visual pathway - Answer Low levels of Ca++ activate recoverin which activates rhodopsin kinase, phosphorylates rhodopsin, arrestin binds and shuts off pathway Explain the adaptation process for the auditory pathway - Answer (prolonged stimulus) Stereocilia are bent, tip links...

- auditory perception: sound transformation up to the auditory pathway 1. sound waves (air) 2. ossicular vibrations (bone) 3. basilar membrane waves (fluid) 4. hair cell/ stereocilia movement 5. neural firing correct answers how is sound transformed along the auditory pathway? - OUTER: pinna and air canal resonance - pinna creates the range of sensitivity on equal loudness curve correct answers how is the auditory representation affected by the transformations? - individuals are m...

BIOS 1300 PreLab 3 Questions and Answers Rated A Centrosome Part of the cell that contains the centrioles and the centrosome matrix Function of the endocytic vesicle? Moves large particles, fluid, or molecules through plasma membrane and into cell What structure synthesizes protein for use inside the cell? Rough endoplasmic reticulum T/F: The nuclear envelope has a phospholipid bilayer True What structure regulates the passage of material between the cytoplasm and the nucleus? Cell membrane ...

The cells that form the visceral capsule of the renal corpuscle are Podocytes The epithelium that lines the renal pelvis would be classified as: transitional epithelium The emptying reflex of the bladder is controlled by the: Parasympathetic nerves from coccygeal spinal nerves The collecting ducts play an important role in concentrating urine because of ADH stimulation of its cells Blood in the urine would most likely indicate an injury to the: Glomerulus The modified epithelium that forms ...

What are the semicircular canals filled with? - ️️endolymph what is the advantage of having high spontaneous firing rate even in the absence of tilt in the hair cells of the vestibular system? - ️️tilting in the direction opposite to the direction which causes maximal firing rate causes hyperpolarizing the cell in which direction in regards to the striola do the longest stereocilia of the hair cells point to? - ️️in utricle: all cells point towards the striola in saccule: all c...