[Constriction of skin bloo...] Which one of the following is an example of negative feedback loop in humans?

Easy Tutorial

For Competitive Exams

Aptitude

TNPSC G4

10th CBSE Maths

Which one of the following is an example of negative feedback loop in humans?

Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold

Secretion of tears after falling of sand particles into the eyes

Salivation of mouth at the sight of delicious food

Secretion of sweat glands and constriction of skin blood vessels when it is too hot

Additional Questions

How many laminae are present in the grey matter of spinal cord?

Answer

Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that:

Answer

The function of vagus nerve innervating the heart is to

Answer

Cornea transplant in humans is almost never rejected. This is because:

Answer

When sympathetic nervous system is activated it causes the secretion of

Answer

Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features (a-d). Which one feature is correctly described?

Feature	Sympathetic Nervous System	Parasympathetic Nervous System
(a) Salivary gland	Stimulates secretion	Inhibits secretion
(b) Pupil of the eye	Dilates	Constricts
(c) Heart rate	Decreases	Increases
(d) Intestinal peristalsis	Stimulates	Inhibits

Answer

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

Answer

Which one of the followings is the largest portion of the brain in humans?

Answer

Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?

Answer

Which one of the following is an example of negative feedback loop in humans?

Answer

Share with Friends