Nociceptors and Sensory Fibers Quiz

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What type of pain sensations do A-Delta fibers transmit?

Touch and vibration

Dull, aching, or pruritic

Itchy or ticklish

Sharp, well-localized (correct)

Which type of fibers are stimulated by mechanical, thermal, and chemical nociceptors?

A-Delta fibers

C-fibers (correct)

A-Beta fibers

Olfactory neurons

What is the rate of nerve repair per day?

1 km/day

1 μm/day

1 mm/day (correct)

1 cm/day

What type of changes occur in the cell body during local nerve repair?

Swelling and loss of Nissl bodies Signup and view all the answers

What guides the new terminal sprouts during retrograde nerve repair?

Schwann cells Signup and view all the answers

Where are sympathetic neurotransmitters typically secreted?

Axon terminal Signup and view all the answers

What is the effect of somatostatin on growth hormone in children under stress?

It inhibits the growth hormone Signup and view all the answers

What is the effect of cortisol on Th1 cells in the body?

It suppresses the production of Th1 cells Signup and view all the answers

What is the effect of glucocorticoids on the brain during chronic stress?

It causes dendritic retraction and cell death Signup and view all the answers

What is the third stage of the general adaptation syndrome?

Exhaustion Signup and view all the answers

What is the effect of stress on mental health?

It can cause depression, anxiety, and cognitive deficits Signup and view all the answers

What is the purpose of the body's fight or flight response during the alarm stage?

To provide a temporary response to a stressor Signup and view all the answers

What is the direct effect of increased intracellular calcium levels on intracellular activities?

Regulation of intracellular enzyme activities Signup and view all the answers

What type of cells are responsible for secreting hormones in the anterior pituitary?

Chromophils Signup and view all the answers

What is the primary function of somatotropins (Growth Hormone) in the body?

Essential for normal tissue growth and maturation Signup and view all the answers

What is the primary function of ADH in the body?

Control of plasma osmolality Signup and view all the answers

What is the effect of angiotensin II on ADH secretion?

Increases ADH secretion Signup and view all the answers

What is the region of the pituitary that stores hypothalamic hormones and secretes them?

Posterior pituitary Signup and view all the answers

What is the result of hyperplasia of the thyroid in individuals with hyperthyroidism?

Increased synthesis of T4 and T3 Signup and view all the answers

What is the term for the clubbing appearance of fingers in individuals with hyperthyroidism?

Acropachy Signup and view all the answers

What is the cause of thyrotoxic storm in individuals with hyperthyroidism?

Undiagnosed or partially treated hyperthyroidism Signup and view all the answers

What is the primary treatment for thyrotoxic storm?

Drugs to block TH synthesis and beta-blockers Signup and view all the answers

What is the term for the enlargement of the ocular muscles leading to bulging of the eyes in individuals with hyperthyroidism?

Exophthalmos Signup and view all the answers

What is the term for the infiltrative changes involving the orbital contents in individuals with hyperthyroidism?

Ophthalmopathy Signup and view all the answers

What is the primary cause of Cushing-like syndrome?

Too much glucocorticoids in the body Signup and view all the answers

What is a characteristic feature of weight gain in Cushing-like syndrome?

Accumulation of adipose tissue in the trunk, face, and cervical areas Signup and view all the answers

What is a potential consequence of protein wasting in Cushing-like syndrome?

Muscle weakness and thinning of the limbs Signup and view all the answers