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

Concave lens can correct it:

Myopia

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Convex lens can correct it:

Hyperopia

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Near objects focus behind the retina:

Hyperopia

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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

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What part of photoreceptors is the transduction site:

Outer segment

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Which of the following statements is not true:

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

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

True

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Retinal neurons that generates the sole output of the retina:

Ganglion cells

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Which of the following is true about glaucoma?

Pressure damages ganglion cells at the optic disc

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Which of the following is not true about tears:

Bathe the lens to keep it moist

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

Tears - Cornea - Aqueous humor - Lens - Vitreous humor

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

Lens and cornea

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

Optical part

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Which is true of Golgi tendon organ?

Gauge muscle force

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Distant objects focus in front of the retina:

Myopia

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

Mechanoreceptors

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

Sense of touch
Temperature
Proprioception
Nociception

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Property of C fibers:

Have slowest conduction velocity of any fiber

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Sensory receptor potentials are:

Graded in sized depending on stimulus

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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

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

Bending of stereocilia away or toward kinocilium

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

Angular acceleration of the head

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

False

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

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

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

False

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

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

Glossopharyngeal nerve

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

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

Sweet tasting

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

Inhibitory neurons that make up the dendrodendritic synapses micral cells provide lateral inhibition that ______ olfactory information to the CNS:

Sharpens

Olfactory receptor cells are:

Afferent neurons

Which of the following statements is not correct:

Olfactory receptor proteins are dedicated to a single odorant and its protein can respond only to one specific odorant.

In olfactory transduction, the generation of action potential and it propagation along the olfactory nerve axon leads towards the:

Ofactory bulb

Athlete:

High carbohydrate diet

Heart rate among athlete is _____ at rest.

Low

Androgen effects EXCEPT:

Ventricular fibirillation

Cheerers opposes:

Central fatigue

Tug of war:

Isometric

Negative work:

Eccentric

Highest innervations ratio:

Large interneurons

Type IIx

Fast glycolytic

Fused at lower tetanus concentration:

Type 1

Marathon runners

Aerobic system

Oxidation of glucose, lactate and FA:

Aerobic system

Exercise

All of the choices

Impaired Ca2+

Low frequency

Diving

ATP + PCR

Strength training

Type IIx

True:

Holding strength 40% of contractile force

Unlimited store:

Aerobic

Actual receptors for hearing and balance:

Hair cells

High sodium

Perilymph

Slow conducting

Perilymph

T-tubule

Skeletal and cardiac system

Corrected with convex lens:

Hyperopia

Unitary

Gap junction

Ligand umami receptor

Amino acid

Muscle with pacemaker activity

Unitary smooth muscle

Second messenger in the olfactory:

GPCR

Release of Pi:

Power stroke

Essential in visual signal transduction

Hyperpolarization

Boy was tall, sitting behind.

Myopia

Bitter taste

TRPM5

Bitter syrup

Cover the nose

Calcium sequester

Fused tetanus

Rely on short term energy stores:

Type II

Fast twitch fibers

Type II

energy requirement is highly oxidative:

Type I

Susceptible fatigue:

Type II

A muscle or a group of muscles to perform repeated contractions against a given load for a long period of time (endurance) is primarily dependent on :

Nutrition

The following statements are true of the mechanisms and properties involved when one goes down from the second floor to the first floor using the stairs except:

Causes less damage to muscle fibers and more to connective tissue

A baseball player hitting a ball with his bat will require which of the following energy systems?

Phosphagen system

For sustained activity of moderate intensity which of the following is the preferred choice of fuel source?

Fats

Fatigue develops during increase:

impaired membrane excitability

Which of the following statements are true of the mechanisms of sweating?

NaCl content of sweat increases with rate of secretion

Increase in maximal oxygen delivery during aerobic training has which of the following effect?

Increase mitochondrial content

After every exercise, time for recovery is necessary. Recovery time is shortened with :

high carbohydrate diet

This refers to static contraction of muscle without angle joint movement:

Isometric contraction

Which of the following is an objective index in functional capacity of the body to operate power?

VO2 max

Used during sustained physical activity:

Type I

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

(81 cards)