Chapter 60 and 15 - Exercise Physiology and Sports Science & Sensory transduction (2019) Evals by Keim Flashcards Preview

PHYSIOLOGY - 1st Year 1st Sem Comprehensive Exam > Chapter 60 and 15 - Exercise Physiology and Sports Science & Sensory transduction (2019) Evals by Keim > Flashcards

Flashcards in Chapter 60 and 15 - Exercise Physiology and Sports Science & Sensory transduction (2019) Evals by Keim Deck (81)
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1

Concave lens can correct it:

Myopia

2

Convex lens can correct it:

Hyperopia

3

Near objects focus behind the retina:

Hyperopia

4

What will happen if light shines at photoreceptors:

1-Na+ channels close

2-Membrane potential decreases

3-cGMP levels drop

4-11-cis retinal is converted to trans retinal

5

What part of photoreceptors is the transduction site:

Outer segment

6

Which of the following statements is not true:

The sum of the focal power of optics of relaxed eye is 24D.

7

True or False: Receptive field at the periphery is much large than in the fovea.

True

8

Retinal neurons that generates the sole output of the retina:

Ganglion cells

9

Which of the following is true about glaucoma?

Pressure damages ganglion cells at the optic disc

10

Which of the following is not true about tears:

Bathe the lens to keep it moist

11

A ray of light entering the eye will pass through these transparent elements in order:

Tears - Cornea - Aqueous humor - Lens - Vitreous humor

12

The light must be focused to generate a clear image in the retina which is accomplished by :

Lens and cornea

13

Major component of the vertebrate eye that gathers and focus light and forms an image:

Optical part

14

Which is true of Golgi tendon organ?

Gauge muscle force

15

Distant objects focus in front of the retina:

Myopia

16

Receptors in the skin the provides sensitivity to specific stimuli (vibration and steady pressure):

Mechanoreceptors

17

Somatic sensation is usually considered to be a combination of the following:

Sense of touch
Temperature
Proprioception
Nociception

18

Property of C fibers:

Have slowest conduction velocity of any fiber

19

Sensory receptor potentials are:

Graded in sized depending on stimulus

20

A ballet dancer spins to the left. During the spin, her eyes snapped quickly to the left. This fast eye movement in relation to head movement is called:

Nystagmus

21

In vestibular transduction, what produces depolarization or hyperpolarization of afferent vestibular nerve?

Bending of stereocilia away or toward kinocilium

22

In vestibular transduction, the function of the semicircular canal is to detect:

Angular acceleration of the head

23

True or False: Cnetral unilateral lesions in the CNS can cause deafness.

False

24

Which of the following is not true of encoding of sound:

Hair cells located at the base respond best to low frequency sound

25

Each taste fibers respond best to only one type of stimulus:

False

26

Innervation of anterior 2/3 of the tongue, which is responsible for sweet, salty and umami taste is by what nerve?

Branch of the facial nerve

27

Innervation of posterior third of the tongue, which is responsible for bitter and sour taste is by what nerve?

Glossopharyngeal nerve

28

True or False: Cells of the taste buds undergo constant cycle of growth, death and regeneration. This process is dependent to your sensory nerve.

True

29

The umami taste is triggered by a mechanism similar to that of:

Sweet tasting

30

Termination of olfactory responses occurs when:

A. Odorant diffuses away
B. Scavenger enzymes in the mucous layer break them down
C. cAMP in the activates other pathways

Idk