Get premium membership and access questions with answers, video lessons as well as revision papers.
Chemoreception is the detection of specific chemicals by a sensory receptor. Interaction of chemical with receptors results in the generation of receptor potentials, consequently action potentials. The sense of smell and taste are obvious examples. Taste is a common sensation throughout the animal kingdom. The ability to taste bitter substances is almost universal in the animal kingdom, and it serves a protective purpose by warning against potentially toxic substances.
Mechanoreception is the measurement of force (pressure) and displacement. The application of pressure on the receptor produces a conformation change that leads to depolarization and generation of local currents.
Thermoreception is the detection of heat and cold and changes in temperature of environment (whether internal or external). Thermoreception occurs throughout animal kingdom and virtually all animals have optimum temperature within their environment.
Photoreception is the ability to detect light and is an almost universal phenomenon in animal kingdom. In mammals the iris is able to alter the amount of light entering the eye and the lens focuses the light on the retina, the layer of photoreceptors at the back of the eye.
Nociception is the detection of pain by nociceptors which are found extensively on the skin and other tissues as free nerve endings. They are widespread on the superficial layers of skin as well as in certain internal tissues. Pain can be mechanical, chemical or thermal.
marto answered the question on April 16, 2019 at 07:41
- Briefly discuss the functional Organization of Mammalian Neurosensory System.(Solved)
Briefly discuss the functional Organization of Mammalian Neurosensory System.
Date posted: April 16, 2019. Answers (1)
- Discuss the structure of the brain.(Solved)
Discuss the structure of the brain.
Date posted: April 16, 2019. Answers (1)
- Explain the Structure and Functions of Central Nervous System.(Solved)
Explain the Structure and Functions of Central Nervous System.
Date posted: April 16, 2019. Answers (1)
- Discuss the structure and Function of Synapses.(Solved)
Discuss the structure and Function of Synapses.
Date posted: April 16, 2019. Answers (1)
- Discuss with aid of a diagram the structure and Functions of Neurons.(Solved)
Discuss with aid of a diagram the structure and Functions of Neurons.
Date posted: April 16, 2019. Answers (1)
- Briefly discuss the The mammalian nervous system(Solved)
Briefly discuss the The mammalian nervous system
Date posted: April 16, 2019. Answers (1)
- List the functional Organization of The Mammalian Nervous System.(Solved)
List the functional Organization of The Mammalian Nervous System
Date posted: April 16, 2019. Answers (1)
- Briefly discuss what will happen to the body when temperatures become too cold.(Solved)
Briefly discuss what will happen to the body when temperatures become too cold
Date posted: April 16, 2019. Answers (1)
- Discuss thermoregulation in mammals.(Solved)
Discuss thermoregulation in mammals.
Date posted: April 16, 2019. Answers (1)
- Explain the Concept of Negative Feedback .(Solved)
Explain the Concept of Negative Feedback
Date posted: April 16, 2019. Answers (1)
- Discuss the Functional Systems of the Body and their Contribution to Homeostasis.(Solved)
Discuss the Functional Systems of the Body and their Contribution to Homeostasis.
Date posted: April 16, 2019. Answers (1)
- Define Homeostasis(Solved)
Define Homeostasis.
Date posted: April 16, 2019. Answers (1)
- Describe the Principle of Homeostasis.(Solved)
Describe the Principle of Homeostasis.
Date posted: February 26, 2019. Answers (1)
- Explain the basic Carbohydrate Metabolism in Mammals.(Solved)
Explain the basic Carbohydrate Metabolism in Mammals.
Date posted: February 25, 2019. Answers (1)
- Explain the basic Protein and Amino acid Metabolism in Mammals.(Solved)
Explain the basic Protein and Amino acid Metabolism in Mammals.
Date posted: February 25, 2019. Answers (1)
- Explain the basic Lipid Metabolism in Mammals.(Solved)
Explain the basic Lipid Metabolism in Mammals.
Date posted: February 25, 2019. Answers (1)
- How are Triglycerides Used to Provide Energy?(Solved)
How are Triglycerides Used to Provide Energy?
Date posted: February 25, 2019. Answers (1)
- How do Ruminants use Volatile Fatty Acids as Energy Source?(Solved)
How do Ruminants use Volatile Fatty Acids as Energy Source?
Date posted: February 25, 2019. Answers (1)
- Describe the digestion process in fish(Solved)
Describe the digestion process in fish.
Date posted: February 25, 2019. Answers (1)
- With an aid of a diagram describe the avian digestive system.(Solved)
With an aid of a diagram describe the avian digestive system.
Date posted: February 25, 2019. Answers (1)